Next Article in Journal
Cross-Modal Manifold Propagation for Image Recommendation
Next Article in Special Issue
Bottle Aging Affected Aromatic and Phenolic Wine Composition More than Yeast Starter Strains
Previous Article in Journal
Model-Free Data Mining of Families of Rotating Machinery
Previous Article in Special Issue
How the Management of pH during Winemaking Affects Acetaldehyde, Polymeric Pigments and Color Evolution of Red Wine
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Review

The Application of Wood Species in Enology: Chemical Wood Composition and Effect on Wine Quality

by
António M. Jordão
1,2 and
Fernanda Cosme
2,3,*
1
Escola Superior Agrária, Instituto Politécnico de Viseu, 3504-510 Viseu, Portugal
2
Chemistry Research Centre—Vila Real (CQ-VR), 5000-801 Vila Real, Portugal
3
Department of Biology and Environment, School of Life Sciences and Environment, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
*
Author to whom correspondence should be addressed.
Appl. Sci. 2022, 12(6), 3179; https://doi.org/10.3390/app12063179
Submission received: 17 January 2022 / Revised: 3 March 2022 / Accepted: 16 March 2022 / Published: 21 March 2022
(This article belongs to the Special Issue Wine Aging Technologies: Latest Advances and Prospects)

Abstract

:
Aging wine is a usual practice in winemaking, as the wine quality improves due to the compounds extracted from wood barrels or chips, cubes, blocks, or staves used. The wood species used are traditionally oak, namely from Quercus petraea, Q. alba, or Q. robur species. In the last years, the increasing request for oak wood has caused a significant increase in environmental and production costs. Therefore, heartwood from several alternative species has been considered a potential wood source for winemaking and aging. Thus, the main purpose of this review is the application of these alternative wood species on wine production and to discuss the advantages and disadvantages of its use compared with the traditional wood species, namely oak wood. In addition, a brief chemical characterization of several wood species with possible application in enology is also discussed in this review.

1. Introduction

Over the centuries, numerous wood species were used to manufacture wood barrels with mahogany, chestnut, pine, and false acacia wood as the most used species [1]. Nevertheless, oak has been one of the key wood species for this purpose, as it has diverse characteristics, which differentiate it from the other wood species, such as flexibility, ease to handle, resistance, and it has low permeability [2]. However, it is essential to remind that in the mid-twentieth century, there was a strong rejection of wood for enological purposes due to the incremented application of materials like concrete and stainless steel. From the 1990s onwards, the application of wood for cooperages, mainly from diverse oak wood species, reemerged rather significantly and became one of the main choices, for example, in aging wine [3,4].
The most oak wood species employed by cooperages are Quercus alba, Q. garryana, Q. macrocarpa, and Q. stellate in the U.S.A., while other different oak species, specifically Quercus petraea and Q. robur, but also other oak species, such as Quercus cerris, Q. suber, Q. lyrata, Q. bicolor and Q. lanuginose are used in Europe [5,6]. However, are Quercus alba, Q. petraea, and Q. robur, the key oak species employed in the wine sector. Currently, several studies also described the application of other European and non-European oak species with remarkable use in winemaking, such as Quercus faginea [7,8], Q. pubescens [9,10], Q. pyrenaica [11,12,13,14,15,16,17,18,19,20], and also Q. humboldtii from Colombia [21,22].
Actually, chestnut and oak wood species are permitted only by the Resolution OENO 4/2005 of Organization of Vine and Wine for enological use [23]. Nevertheless, in recent years, heartwood from other species has been considered for winemaking, especially for the aging process, such as false acacia, cherry, European and American ash, and mulberry. Additionally, scarce studies described the possible application of other wood species in enology like Juglans regia [24].
The main purpose of the wood barrels in enology is to enhance the wine with compounds extracted from the wood (such as phenolic compounds), stimulate reactions between wine and wood compounds, allow the air diffusion through the wood barrels’ pores, and improve chemical reactions that happen gradually in wines and therefore increase wine’s quality [25,26]. Thus, in the last decades, the scientific literature contains a considerable quantity of study associated with the employment of oak wood barrels in enology, mainly its effect on wine chemical and sensory characteristics. The majority of research has focused on red wine, the use of oak barrels [15,16,20,27,28,29,30,31], or the application of oak fragments, like chips, staves, blocks, or powders [10,14,28,31,32,33,34,35]. Moreover, for rosé wines, a few recent works report results about using diverse wood species, comprising oak, false acacia, and cherry [36,37]. Finally, for white wines, there are also several works published concerning the application of diverse wood species, especially from oak and false acacia [38,39,40,41,42,43,44,45].
A comparative analysis between oak and non-oak wood species on wine chemical composition and sensory characteristics was the key objective of this review work. The chemical composition of diverse wood species with potential application in enology and the main factors determining their composition were also addressed. The review will be particularly useful for wine producers and winemakers, and all those who study this subject, as it shows a large amount of data on the use of different woods in enology, summarizing much of the information that has been published in the last twenty years.

2. Chemical Composition of Wood Species

A high quantity of studies has been published concerning oak wood chemical composition. The extractable wood compounds, ellagitannins, ellagic acid, gallic acid, several aldehydes, and aromatic compounds are the key compounds with interest for wine production and the aging process. According to several works [46,47,48,49], volatile phenols and benzoic aldehydes play a very important role in the wines sensory profile. Other authors [48,49,50,51] describe hydrolysable tannins as having particular importance as they give astringency, as well as being involved in the stabilization of wine compounds and demonstrating important antioxidant properties. According to Vivas and Glories [52,53], ellagitannins have a significant role in the wine oxidation processes because they quickly absorb dissolved oxygen and facilitate the hydroperoxidation of wine compounds. In addition, they also demonstrate an essential role in the proanthocyanidin and anthocyanins condensation rate, avoiding their degradation and precipitation.
For oak wood species studied with enological use, in general, the content of these extractives compounds is influenced by several factors, namely, the forest origin [11,13,54,55,56], species [11,13,54,56,57,58], heartwood age [59,60], and most importantly, heat treatment which happens in cooperage during barrel and wood fragment production [11,12,13,58,60,61]. Several works [13,53,57,58,61,62,63] also describe that European and American species contain dissimilar levels of ellagitannin, with lower levels for American oak (Q. alba) compared to European species (Q. robur, Q. petraea, and Q. pyrenaica).
Table 1 shows examples of several individual phenolic compounds detected in un-toasted and toasted wood species (oak, cherry, and false acacia). Generally, the ranges for the most individual phenolic compounds, especially for ellagitannins in the same oak species, are broad due to factors such as the toasting process that occurs in cooperage and also variability within the species. According to several authors, false acacia and cherry do not contain ellagitannins in their composition [64,65,66,67,68].
Alañón et al. [69] detected in Castanea sativa Mill (chestnut) a very low quantity of the two main ellagitannins, vescalagin and castalagin. The outcomes also show that its heartwood has the greatest comparable polyphenolic profile to oak wood. Nevertheless, there were also some dissimilarities. Thus, in agreement to Comandini et al. [70], 1-O-galloyl castalagin, which was for the first time detected in chestnut wood samples, might originate from the esterification of castalagin or vescalagin with a gallic acid residue. For Vivas et al. [53], Q. frainetto is distinguished particularly from the other species by its greater concentration of pentosylated dimers and a monomer level that is similar to the rest of the Quercus species, which makes it the species designated with the high concentration in ellagitannins. Ellagic acid could also be detected in diverse wood species, including oak, cherry, false acacia, and chestnut [68,71].
According to several authors [65,67,72], cherry wood is characterized by a richness of procyanidins and (+)-catechin. This species also contains some phenolic acids and their esterification products (p-hydroxybenzoic acid, p-coumaric acid, benzoic acid, methylsyringate, 3,4,5-trimethylphenol, and methylvanillate), and flavonoids (naringenin, isosakuranetin, aromadendrin, and taxifolin). Jordão et al. [68] detected low values of naringenin for cherry woods. However, Chatonnet [73] also reported the existence of an extremely low content of procyanidins in oak woods.
Fernández de Simón et al. [74] showed that the false acacia heartwood enclosed a greater quantity of flavonoids, namely, robinetin and dihydrorobinetin at values up to 100 μmol/g. These compounds are specific markers of false acacia wood as they have not been found in other woods used for cooperage, such as oak, chestnut, cherry, and mulberry. On the other hand, Jordão et al. [68] detected several compounds characteristic of false acacia wood, like fustin, robinetin, and butin, that were not found in the cherry and oak woods. Other researchers described only a few procyanidins and no hydrolysable tannins [65,66,74]. Other wood species with very limited enological applications, such as ash wood, the occurrence of phenylethanoid glycosides, secoiridoids, or di- and oligolignols could be a good identifier for the application of this wood species. [65,66]. Lastly, for mulberry wood, mainly for the two species that have been studied by Kozlovi et al. [75], high antioxidant activity and polyphenolic concentration were achieved in wood extracts from Morus nigra L. and Morus alba L. in contrast with the phenolic concentration achieved for extracts of Robinia pseudoacacia L and. Quercus robur.
Table 1. Individual phenolic compounds are found in different wood species.
Table 1. Individual phenolic compounds are found in different wood species.
Phenolic
Compounds
Wood Species
Oak SpeciesFabaceaeCherryReference
Quercus
petraea
Quercus
alba
Quercus pyrenaica Willd.Robinia
pseudoacacia
L.
Prunus avium L.
Total polyphenols (1)1269----786898[76] (2)
Total polyphenols (3)61.3961.5165.0351.2346.82[77,78] (7)
Protocatechuic aldehyde (4)ndndnd1.40nd[68] (7)
Gallic acid1.25nd1.44ndnd
Vanillic acid0.140.330.128ndnd
Syringic acid0.44 0.830.22ndnd
(+)-Catechinndndndnd18.51
Robinetinndndnd118.94nd
Fustin (5)ndndnd0.86nd
Butin (5)ndndnd3.52nd
p-Coumaric acid153.4nd84.3nd172.5
Quercetin5.45 5.492.48ndnd
Naringeninndndndnd5.54
Vescalagin (6)19.216.2125.74ndnd
Castalagin (6)24.975.4332.45ndnd
Ellagic acid3.491.174.910.0490.72
Vescalagin (8)9.87–10.65.41–8.24------[58] (9)
Castalagin (8)12.56–19.82.34–3.54------
Ellagic acid6.91–12.562.34–3.42------
Vescalagin (8)12.6–17.61.23–5.2811.3–14.6----[13] (9)
Castalagin (8)20.1–22.70.37–0.4415.2–19.7----
Ellagic acid2.60–4.421.90–3.623.9–20.5----
Total ellagitannins (10)--------nd-0.04[64,66,69]
Gallic acid (11)70.75----9.61nd[79]
Vanillic acid (11)2.34----nd1.86
Syringic acid (11)3.78----0.823.05
Ellagic acid (11)32.68----ndnd
Protocatechuic (11) aldehydend----0.197.90
(1) (+)-catechin equivalents; (2) mg/L and data obtained after 30 extraction days by the use of model wine solutions 12 % with 60 g/L of wood chips without toasting process; (3) gallic acid equivalents; (4) protocatechuic acid equivalents; (5) naringenin equivalents; (6) ellagic acid equivalents; (7) mg/L and data obtained after 30 extraction days by the use of model wine solutions 12% with 4 g/L of wood chips; (8) mg/g dry wood gallic acid equivalents; (9) obtained after 160 min by the use of extraction solution (water/acetone); (10) mg/g untoasted wood and the sum of castalagin, vescalagin, granidin, and A, B, C, D, and E roburins; (11) mg/L of toasted wood and data obtained after 35 extraction days by the use of model wine solutions.
Table 2 shows the content of some of the most typical volatile compounds quantified in oak, false acacia, and cherry wood species. In oak wood species existent, a high quantity of volatile compounds with a significant influence on the wine sensory profile, especially in olfactive wine characteristics and also in some descriptors of the wine taste profile. Generally, wood belonging to genus Quercus has β-methyl-γ-octalactones (cis and trans forms), frequently in higher quantities in American species, like Quercus alba. Nevertheless, also in European oak species, it is possible to find these compounds. The lactones are related to sensory descriptors such as coconut and fresh oak. The literature describes that the cis isomer is more aromatic than the trans isomer [11,80,81]. Rendering to numerous authors [82,83], the cis to trans-oak lactone ratio is specific to the wood’s source, where this ratio is greater for American oak wood species than European oak species. Jordão et al. [11] reported values of cis/trans ratio of 5.7, 4.2, and 0.63 for Q. alba, Q. petraea, and Q. pyrenaica, respectively. These authors also quantified twelve distinct volatile compounds, comprising cis- and trans-β-methyl-γ-octalactones, in toasted oak woods from these species and diverse geographical origins. Rendering to the outcomes achieved the highest concentration for β-methyl-γ-octalactones were detected in Q. alba, followed by Q. petraea. For all of these oak species, the cis form was the most abundant β-methyl-γ-octalactone. As shown in Table 2, generally, woods not belonging to genus Quercus do not have either cis or trans-β-methyl-γ-octalactone in their composition. Nevertheless, some researchers [68,84] already found very low concentrations of lactones in false acacia and cherry woods. Furthermore, Caldeira et al. [85] also detected small quantities of cis and trans forms in chestnut wood.
De Rosso et al. [76] investigated the chemical compounds extracted from oak, chestnut, false acacia, and mulberry woods used to manufacture barrels. According to these researchers, chestnut, false acacia, and oak extracted quantities between 1 and 10 μg/g wood of coniferaldehyde, while very low quantities for mulberry wood were found. Furthermore, higher quantities were quantified for syringaldehyde for the wood species considered (chestnut, false acacia, and oak). For cherry wood, only quantities between 1 and 10 μg/g wood were detected. Lastly, benzaldehyde was only found in cherry woods. These results follow an analogous trend showing by Fernández de Simón et al. [86]. According to these authors sinapaldehyde, coniferaldehyde, and syringaldehyde were found in false acacia, oak, and cherry woods (Table 2).
Table 2. Individual volatile compounds are found in different wood species.
Table 2. Individual volatile compounds are found in different wood species.
Volatile
Compounds
Wood Species
Oak SpeciesFabaceaeCherryReference
Quercus petraeaQuercus albaQuercus pyrenaica Willd.Robinia
Pseudoacacia L.
Prunus avium L.
Furanic aldehydes (1)397.19----8.2670.18[84] (1)
Volatile phenols (1)941.58----197.84334.63
Phenolic aldehydes (1)1563.62----170.381208.42
Phenyl ketones (1)55.33----57.0472.21
Lactones (1)14.77----nd3.95
Guaiacol (2)4.460.91--0.100.16[87,88]
Eugenol (2)1.053.44--0.920.11
Furfural (2)12.095.79--0.56nd
Vanillin (2)45.6970.37--4.704.68
Trans-β-methyl-γ-octalactone (2)2.141.64--ndnd
Cis-β-methyl-γ-
octalactone (2)
6.1239.37--ndnd
Guaiacol (3)2.414.893.985.361.71[86]
Eugenol (3)1.831.292.122.361.50
Furfural (3)43039549480423.3
5-Hydroxymethylfurfural (3)22.921.128.911347.6
5-Methylfurfural (3)35.138.356.394.231.3
Vanillin (3)11710211477.168.3
Trans-β-methyl-γ-octalactone (3)14.63.369.77ndnd
Cis-β-methyl-γ-
octalactone (3)
21.131.830.0ndnd
Benzaldehyde (3)0.80.740.960.250.91
Syringaldehyde (3)221226250272455
Coniferaldehyde (3)10696.2174227145
Sinapaldehyde (3)263239439912804
Guaiacol (4)4.20 × 10−312.52 × 1054.12 × 10−312.8 × 10−38.22 × 10−3[68] (7)
Eugenol (4)3.39 × 10−359.39 × 10412.01 × 10−30.60 × 10−31.29 × 10−3
Vanillin (4)71.77 × 10−331.5 × 106169.45 × 10−3120.8 × 10−31.64 × 10−3
Furfural (4)134 × 10−320.69 × 1065.75 × 10−313.7 × 10−33.24 × 10−3
β-Methyl-γ-octalactones (4)119.6 × 10−3199.8 × 105521.8 × 10−316.5 × 10−318.12 × 10−3
Ethyl cinnamate (4)ndndndnd1.77 × 10−3
Ethyl hexanoate (4)ndndndnd2.21 × 10−3
Benzaldehyde11.4412.687.93ndnd
Coniferaldehyde (5)1.421.350.90ndnd
Syringaldehyde (6)0.109nd0.11ndnd
(1) mg/100 g toasted wood in 3-octanol equivalents and oak Quercus robur specie was studied; (2) μg/g of untoasted wood; (3) μg/g toasted wood and data obtained after 15 extraction days by the use of model wine solutions 12% with 20 g/L of wood chips; (4) average peak area expressed in relative peak area in relation of internal standard and data obtained after 30 extraction days by the use of model wine solutions 12% with 4 g/L of wood chips; (5) sinapaldehyde equivalents; (6) syringic acid equivalents; (7) data obtained after 30 extraction days by the use of model wine solutions 12% with 4 g/L of wood chips; nd—not detected.
False acacia could be defined by an important concentration of benzene aldehydes, oak, and chestnut, by a great concentration of eugenol, vanillin, methoxyeugenol, syringaldehyde, and α-terpineol [76]. Furthermore, chestnut is also characterized by a great number of fatty acids and volatile compounds. In addition, mulberry wood contains a very low number of volatile compounds.
Vanillin, eugenol, and guaiacol are compounds with a significant role in numerous wine sensory descriptors. These compounds are related to sensory descriptors such as vanilla, smoky, and cloves aromas, respectively. Generally, vanillin is existent in different oak, chestnut, cherry, false acacia, and ash species. Nevertheless, lower values are also found in false acacia and cherry woods [86,87,88,89]. For Martínez-Gil et al. [22], the guaiacol concentrations in medium-toasted ash woods are considerably higher than those found in the other toasted woods. Other researchers [68,86] revealed similar concentrations of eugenol detected between different toasted oak wood species and other wood species (false acacia, cherry, and ash). Fernández de Simón et al. [86] described for false acacia, cherry, ash, and chestnut toasted woods average concentrations of eugenol between 1.50 and 3.21 μg/g.
After wood toasting, the main volatile compounds formed are furfural, 5-hydroxymethylfurfural, and 5-methylfurfural. They resulted in hemicellulose thermodegradation during the toasting process. These compounds are related to caramel, toasted and bitter almonds sensory descriptors. Some wood species are characterized by a few different profiles concerning these compounds. Therefore, Quercus humboldtti for toasted wood shows a higher level of 5-methylfurfural and lower furfural and 5-hydroxymethylfurfural than other oak wood species, such as Quercus petraea and Q. alba [22]. In addition, Martins et al. [84] described a low concentration of furfural, 5-methylfurfural, and, 5-hydroxymethylfurfural in false acacia and cherry toasted woods when compared with oak and chestnut woods. Even for untoasted woods, other works described low concentration of 5-methylfurfural and furfural in false acacia, while for no toasted cherry, it was not detected furan derivatives [87,89].
In Table 3, through various examples, the contents found of some of the volatile compounds quantified from several oak wood species as a function of the toasting intensity are shown.

3. Impact of Wood Species on Wine Chemical Composition

During the wine aging in wood, numerous chemical and physical changes occurred, such as transferring volatile and phenolic compounds from wood to wine to improve the wine’s quality [91]. However, reactions including only wine compounds and evaporation of volatile compounds can also take place. The key wood extractives are phenolic compounds [92], lactones (cis- and trans-β-methyl-γ-octalactones), aldehydes [76], and furfuryl compounds (5-methylfurfural, furfural, and furfuryl alcohol) [90]. Moreover, wines aged in wood are also continually exposed to small quantities of atmospheric oxygen (for oak barrels, it has been estimated at 10–45 mg/L per year) through the stave pores. This natural micro-oxygenation enhanced the condensation and polymerization reactions between flavonoid compounds (tannin–tannin and tannin–anthocyanin), which positively influenced the evolution of wine phenolic composition, by the formation of new stable anthocyanin and tannin derivatives, with consequent color stabilization and loss of astringency [53,76,93]. On the other hand, the wine compounds can also be fixed on the wood and by wine lees [94,95], so this factor will also impact the volatile composition of wine. Therefore, the wine aged in wood undergoes important modifications that influence the wine volatile profile (a potential more complex aroma), color stability, and clarification; however, these changes are dependent on numerous factors, such as the wood species, initial wine composition, and the aging time.
The type and quantity of wood extractives are highly dependent on the aging time and on the number of compounds that are potentially extractable from the wood to the wine, which is influenced by the wood species employed [76], geographical origin, wood grain [13,15] drying and the toasting methods [16,96,97] and on barrel utilization time [43,98]. Nevertheless, the wine to be aged in wood needed to have a good initial structure and body to balance the adverse influence of oxygen.
Ortega-Heras et al. [99] studied the concentration of the volatile compounds removed from the wood, namely the syringaldehyde, cis- and trans-whiskylactones, vanillin, furfural, 5-methylfurfural, guaiacol, eugenol, p-ethyl-phenol, and p-ethylguaicol in twelve red monovarietal wines aged in new American oak barrels. These authors conclude that the removal of these compounds was quicker during the first 4 or 9 months of aging time in wood. Moreover, the wine alcohol content influences the removal process of the compounds from the wood. Thus, Maga [100] studied the removal of cis- and trans-oak lactones, from American oak (Q. alba) in model wines with diverse ethanol levels (0%, 10%, 20%, 40%, and 60%), showing that the maximum levels of oak lactones were achieved in the samples with 40% ethanol. The removal of volatile compounds from wood barrels throughout the wine’s aging process with diverse alcohol content and pH (Cabernet Sauvignon, 12.3% v/v, pH, 3.45; Merlot, 13.6% v/v, pH, 3.7) was studied by Garde-Cerdán et al. [101]. These authors described that in Merlot wine, with higher alcohol content, the removal of volatile compounds from wood barrels was higher than in Cabernet Sauvignon wine with lower alcohol content. These authors also observed that the alcohol degree has a higher effect on the removal process than the wine pH. Jordão et al. [11], using model wine solutions, studied the influence of temperature, pH, alcoholic level, and aging time on the removal of some ellagic tannins (castalagin, vescalagin, grandinin, roburin D and E) and ellagic acid from Q. pyrenaica wood chips (Quercus pyrenaica). In the removal conditions studied, the temperature was the key factor influencing ellagic acid and ellagic tannins evolution. The results suggest that a decrease/degradation of these compounds is less perceptible at low temperatures (12 °C).
Another factor to have in consideration is the number of barrel utilization, as the extraction decreases with the increased number of uses [83,102,103]. In the experiment performed by Towey and Waterhouse [102], fifteen barrels (7 American, 6 French, and 2 Hungarian) were used with Chardonnay wines in three successive vintages. These authors showed that the extraction rates were lesser in the one-year-old barrels than in the new barrels and lower in two-year-old barrels than in one-year-old barrels and that the levels of the compounds associated with toasting reduced significantly in the second year. Pérez-Prieto et al. [104] showed that the compounds removed from the wood, no significant differences were detected in furfuryl compounds and 4-methylguaicol, between new and 3 times used barrel (French or American oak); however, the number of lactones, which are essential compounds for the sensory wine characteristics, were significantly decreased in used barrels.
Moreover, Garde-Cerdán et al. [103] studied the effect of the barrels’ utilization time on the red wine volatile composition and showed that wood compounds such as syringaldehyde, vanillin, and trans-β-methyl-γ-octalactone, which are essential for the red wine aroma, were smaller than their perception threshold in barrel with 5 to 6 utilization times. This author also detected differences between the wines aged in used French and American oak barrels, so the wines aged in American oak presented levels of cis-β-methyl-γ-octalactone greater than its perception threshold, which was not observed in the wines aged in French oak. On the other hand, the wine aged in used French oak barrels presented a superior quantity of syringaldehyde, vanillin, acetovanillone, and ethyl lactate. Table 4 summarizes some results obtained by several authors on the volatile composition of some wines aged in French and American oak barrels, with different utilization times.
Besides oak wood, other species like cherry (Prunus avium), false acacia (Robinia pseudoacacia), mulberry (Morus alba L. and Morus nigra L.), or ash (Fraxinus excelsior) are increasingly considered for winemaking, and they are investigated in numerous studies [65,66,74,76,77], due to their lower costs, or due to their distinctive sensory contribution [85]. In the case of cherry wood, several authors reported that this wood species contribute to a faster red wine pigment stabilization, preserving the maximum red color intensity and the best wine chromatic characteristics [106]. On the other hand, the red wines aged in contact with mulberry wood barrels showed significant reductions in fruity-note ethyl esters and ethylguaiacol and also higher ethylphenol content. In addition, wines aged in cherry wood barrels presented higher polyphenol oxidation, being cherry wood not appropriate for long-time aging [76,77]. If the aging of the red wine in cherry wood chips is compared with the aging in oak wood chips, it seems to be a quicker evolution of the wine phenols [10,34]. During the wine aging in cherry wood barrels, a decrease in flavonols and flavanols was observed (involved in condensation phenomena capable of stabilizing wine color) [107]. Chinnici et al. [106] proposed that red wine aged in cherry wood barrels presented a high quantity of flavanols that may possibly be involved in acetaldehyde-mediated condensation, increasing pigments stabilization. As shown in Table 5, the wines aged in cherry wood barrels are distinct from the wine aged in oak wood barrels due to the existence of five additional phenolic compounds, namely, eriodictyol, a flavanone derivative, sakuranetin, pinocembrin, and chrysin [107]. For wines aged in contact with chestnut wood barrels, the presence of valoneic acid dilactone was observed, which could be considered a phenolic marker for a wine aged in contact with this wood species [74]. In these wines, a higher concentration of gallic and ellagic acids was also quantified [71,74,108]. Wines aged in contact with false acacia wood presented dihydrorobinetin, robinetin, and 2,4-dihydroxybenzaldehyde in higher concentrations, but also other compounds were identified in wines aged in contact with false acacia wood barrels such as 2,4-dihydroxybenzoic acid, pentahydroxydihydroflavonol, tetrahydroxydihydroflavonol, fustin, trihidroxymethoxy dihydroflavonol, robtin, butin, tetrahydroxyaurone, and butein [65,66,74], as shown in Table 5. Phenolic acids present in oak wood also have important functions in aged wines as they influence factors associated with an antioxidant capacity [69,109,110,111,112,113]. Wine increases its antioxidant capacity in contact with the wood due to an increase in the concentration of p-coumaric, gallic, caffeic acids, ferulic, protocatechuic, and protocatechuic aldehyde during wine wood aging [69,109,112]. Therefore, the wood composition in phenolic acids used in wine aging could determine the increase in antioxidant capacity of wood-aged wines [113], and consequently, it will be dependent on botanical species used in the wood aging process. Alañón et al. [69] observed that the minimum antioxidant capacity was found in extracts from P. avium, the extracts from Q. pyrenaica, Q. alba, and Q. petraea showed middle antioxidant capacity, and the maximum antioxidant capacity was found in extracts from Q. robur and C. sativa, these authors also showed that the antioxidant capacity observed was related with the wood phenol composition of these species.
Fernández de Simón et al. [114] also identified several volatile compounds that could be used as chemical markers for red wines aged in false acacia (2,4-dihydroxybenzaldehyde) and cherry wood barrels’ (ethyl-2-benzoate).
Regarding the evolution of bottled red wines with previous wood chips contact, Costa et al. [10] focused on the study, over a time of 18 months of aging, of several phenolic parameters of bottled Touriga Nacional red wines that had before been in contact with toasted wood chips from two oak species and cherry. Throughout 18 months of aging, the results indicated less reduction in the phenolic compounds and red color of wines which had previous interaction with oak chips, as well as a less developed brown color throughout bottle storage, compared to the wine previously in contact with cherry chips and the wine without contact with wood chips. Furthermore, wine previously in contact with cherry wood chips always presented an evolution similar to the wine without contact with wood chips. Previously, Tavares et al. [34] also reported the evolution of phenolic compounds of a Portuguese red wine aged for 90 days in contact with wood chips from false acacia (Robinia pseudoacacia), cherry (Prunus avium), and oak species. According to these authors, the diverse wood chip species studied had no clear effect on the evolution of the majority of the red wine phenolic compounds. Nevertheless, from a sensory point of view, the use of diverse wood species induced higher distinction, particularly for aroma descriptors.
Wood aging is also applied in some white wines, mostly by fermentation in barrels but also for aging to increase the quality of white wines [31,38,39,40,41,42,43,75,115,116,117,118,119,120]. Studies performed by Nunes et al. [43] to understand the effect of the application of diverse oak wood barrel sizes and utilization time on a white wine characteristic showed that the wines aged in new oak wood barrels presented a higher number of phenolic compounds, for instance, gallic and ellagic acid, independently of the oak wood barrel capacity. On the other hand, Sánchez-Palomo et al. [42] studied the influence of the application of wood chips at different stages of the vinification process on the volatile composition of Verdejo white wines. This study showed that higher concentrations of oak lactones, benzene compounds, and furanic compounds were presented in white wines in contact with oak chips. Moreover, in white wines, the application of other wood chip species, besides oak, was investigated in numerous studies such as cherry chips [44] and false acacia chips [44,75,88,89]. These innovations aim to enhance and improve white wines, searching for new sensory characteristics/sensations to satisfy the consumers. Table 5 and Table 6 show several examples of compounds detected in wines aged in wood barrels from different wood species.
A study carried out by Kozlovic et al. [75] indicated differences in the volatile composition between wines aged in contact with oak and false acacia wood barrels. These authors reported an increase in oak lactones, simple volatile phenol, furfural, 5-methylfurfural, eugenol, guaiacol, and trans-eugenol during 12 months of aging time. Moreover, Délia et al. [44] studied the influence of aging in an Encruzado white wine in contact with diverse wood chips species (false acacia, cherry, and oak) during 28 days. The results showed that the wine stored in contact with false acacia wood chips revealed a rise in total phenols, non-flavonoid and flavonoid phenolic compounds, and also color intensity. Alañón et al. [88,89] studied the volatile composition of young white wine from the V. vinifera grape variety Chardonnay aged in wood barrels of false acacia. After 4 months of barrels aging, it was observed that the quantity of vanillin, syringaldehyde, ferulic acid, and furfural reduced significantly. This reduction is related to the false acacia wood’s porosity that induced higher oxidation.
There have been studies on the use of different woods in rosé winemaking. Nunes et al. [37] investigated the influence of the application of cherry and oak wood chips (throughout the alcoholic fermentation and aging process) on rosé wine characteristics. Rosé wines vinified and aged in contact with wood chips showed greater levels of colored anthocyanins, while also presenting an increase in color intensity compared to the rosé wine without wood chips contact. Moreover, Santos et al. [35] observed the influence of the application of diverse wood chip species (false acacia, cherry, and oak) in rosé wines throughout a short aging period. Costa et al. [24] also studied the potential use of toasted wood chips from walnut (Juglans regia L.) in enology. This study focused on comparative evolution during 30 days of the phenolic composition and sensory profile of a Touriga Nacional red wine kept in contact with toasted walnut (Juglans regia L.) chips and oak (Quercus petraea L.) wood chips. The results obtained in this research revealed that the wine stored in contact with Quercus petraea L. chips showed, in general, the highest concentration for the majority of the phenolic compounds studied. At the same time, the wine stored in contact with Juglans regia L. chips presented significantly higher concentrations for oligomeric proanthocyanidins.

4. Influence of Wood Species on the Wine Sensory Profile

Aged wines show a distinctive sensory feature that is acquired throughout the aging process. In the last years, winemakers from outside of Europe began to make wines with potential new sensory profiles, and therefore, the application of diverse wood species for wine aging constituted a potential increasingly valid and widespread option.
Wood barrel-aged wine is complex and its sensory perception results from the interaction of many compounds. However, only a few of the compounds extracted from the wood to the wine during barrel aging have a significant impact on the wine sensory characteristics (Table 7). The main volatile compounds released from wood with wine sensory impact are phenolic aldehydes and phenyl ketones, furanic compounds (furfural, hydroxymethylfurfural, furfuryl alcohol, and 5-methylfurfural), volatile phenols (guaiacol, 4-methylguaiacol, ethylguaiacol, vinylguaiacol, and eugenol), and β-methyl-γ-octalactones [121,122]. Phenolic aldehydes and ketones give the characteristic vanilla aroma of oak wood-aged wines, with vanillin being the main compound, characterized by low sensory thresholds (0.3 ppm) in wine [30,123]. Siringaldehyde, sinapaldehyde, and coniferaldehyde do not have a great sensory impact, although their perception thresholds are clearly higher and, therefore, at their usual concentration.
Furanic compounds are responsible for the characteristics and pleasant aromas of almonds and toasted almonds [122], with an olfactory detection threshold in red wines of 20 mg/L for furfural and 45 mg/L for 5-methyl furfural [123]. Maltol and other oxygenated heterocycles provide the aromas of caramel and notes of toast that also characterize wood-aged wines. Guaiacol contributes with a smell of toast and sweet smoke aroma, with an olfactory detection threshold as low as 0.05 ppm [124]; methyl-4-guaiacol and ethyl-4-guaiacol have the smell of burnt wood, while phenol has an ink odor. Eugenol is also of great importance for wine sensory characteristics as it gives a spicy aroma of clove with a sensory threshold of 0.5 ppm [124]; however, all the others give smoked/toasted notes [125]. β-methyl-γ-octalactones (cis and trans forms) are responsible for the coconut flavor, two isomers, cis (−) and trans (+), have been described [63,126]. It is necessary to point out that the cis isomer presents a perception threshold between 4 and 5 times less than the trans isomer making its contribution to coconut perception much more important [125], namely 460 µg/L for the trans-isomer and 92 µg/L for the cis-isomer [127]. Phenol has a medicinal smoky aroma but a slight sensory effect as its olfactory detection threshold is nearby 40,000 μg/L; o-cresol and p-cresol have a medicinal aroma, with an olfactory detection threshold of 300 and 60 μg/L, respectively [75,124]. Ethyl-4-phenol has an unpleasant animal smell, described as leather and even a horse odor. The presence of the latter compound is considered, as long as it exceeds its threshold perception, as a serious wine defect [124]. Wood also releases some nonvolatile compounds such as phenolic acids, coumarins, and especially ellagitannins into the wine [92], which contribute to wine texture and taste sensations, such as body and astringency [128].
Fernández de Simón et al. [114] showed that each wood species added a diverse intensity of aromatic and gustative descriptors, emphasizing the main intensity of caramel/almond, vanilla, and toasty notes in red wines aged in oak wood barrels, of smoky, spicy, and fruity notes in red wines aged in false acacia wood barrels, and of balsamic descriptors in the red wines aged in ash wood barrels. Moreover, Hale et al. [129] referred that throughout wine aging in a barrel, volatile compounds extracted from oak wood contribute with aromatic notes of smoke, vanilla, and spices.
Table 7. Wood compounds and their sensory descriptors and olfactory detection threshold (ODT).
Table 7. Wood compounds and their sensory descriptors and olfactory detection threshold (ODT).
CompoundsODT (μg/L)Sensory DescriptorsReference
Furfural15,000–20,000Toasted nuts, burnt almonds, caramel, dried fruit [122,129,130,131]
5-Methyl furfural16,000–45,000 Toasted nuts, toasty, sweet, spicy[123,129,130,131]
Vanillin
phenols
60–320Vanilla[123,131]
Syringaldehyde50,000Vanilla[123]
Eugenol5–500Spice cloves, cinnamon, smoke character[123,129,130,131].
Guaiacol15–75Spicy, toasty, smoky/burnt[123,131,132]
4-Methylguaiacol65Burnt[123]
β-Methyl-γ-octolactones Coconut[123]
Isomer cis35–46-92Vanilla, oaky, clove, coconut[125,130,131,133]
Isomer trans 122–460Vanilla, oaky, clove, coconut[127,130,131]
4-Ethylphenol620Horse sweat[125]
4-Ethylguayacol140Toasted bread, smoky, clove, burnt[125,130]
Acetovanillone1000Vanilla[134]
Maltol5000Caramel, toasted[135]
In the literature, several research works studied the impact of aging red wine in oak wood barrels on the wine sensory characteristics [14,32,33,96,104]. In this sense, it was shown that in the case of red wines aged for 12 months in oak wood barrels that the kind of oak wood barrels used and the barrel toasting process influenced the wine sensory characteristics [96]. The descriptors vanilla aroma, astringency sensation, and bitterness taste are significantly influenced by the barrel toasting process. These researchers also showed that the wood origin influenced the sensory characteristic of the wine, as it was shown that the concentration of the extractable compounds is different, mainly on whiskey lactone and eugenol concentration. Moreover, differences were observed if the wines were aged in new or used barrels. Pérez-Prieto et al. [104] showed that all sensory descriptors of wines aged in new oak barrels are significantly different from wines aged in used oak barrels. The wines aged in new barrels were higher scored in the descriptors woody, vanilla, spicy, and cedar notes, and the wines aged in used barrels were higher scored for the descriptors pharmaceutical, herbaceous and horsy notes.
Fernández de Simón et al. [74] assessed the sensory profile of Syrah wines aged twelve months in barrels from diverse wood species. It was shown that each wood species contributed with diverse intensities of practically all gustative and aromatic descriptors. Regarding the olfactory descriptors, these authors showed that the wines aged in oak barrels presented the highest intensity of vanilla (4.6), almond/caramel and toasty notes, wines aged in false acacia wood barrels of spicy, smoky, and fruity notes, and the wines aged in ash wood barrels of balsamic notes. The scores for a vanilla descriptor for the wines aged in ash wood was 1.8 and for the wines ages in chestnut wood, 1.6. However, these authors pointed out that the levels of vanillin were higher in wines aged in ash, followed by those aged in chestnut and oak wood and those aged in cherry and false acacia wood barrels. According to these researchers, the results showed that the olfactory descriptors for vanilla need to be enriched by the existence of other compounds, such as whisky lactones, compounds that are only found in wines aged in oak wood barrels. Previously, Spillman et al. [136] showed that the olfactory descriptor vanilla in red wines correlated strongly with the level of cis-β-methyl-χ-octalactone. On the other hand, the wines aged in false acacia wood barrels showed higher spiced, toasted, and fruited notes [74], which could be, according to these authors, correlated to their high level in mono and dimethoxyphenols, acetosyringone, and ethyl vanillate [125]. Fernández de Simón et al. [74] also observed that wines aged in chestnut wood barrels presented middle scores of all olfactory descriptors, and the wines aged in cherry wood barrels presented the lowest scores for the olfactory descriptors toasty, almond, caramel, vanilla and smoky. The wines aged in oak wood were the higher scored wines regarding global wine valuation and the wines aged in the cherry wood barrels were the worst scored. Moreover, other researchers have previously shown that the cherry wood barrels are only suggested in red wines for short aging times [76,77,106].
More recently, Tavares et al. [34] studied the sensory characteristics of a red wine aged in contact with chips from cherry, false acacia, and oak woods. It was shown that the wine aged in contact with French oak chips presented significantly higher scores for the aroma descriptors (vanilla, boisé, and coconut), while the red wine aged with Portuguese oak wood chips presented significantly higher scores for other aroma descriptors such as sawdust. However, these last wines showed lesser scores for fruity and floral aroma descriptors. The red wines aged in false acacia and cherry wood chips showed lower scores for all aroma descriptors. These differences observed in the wines aged in contact with the different oak wood chips are related to greater extraction of β-methyl-γ-octalactone (mainly cis-β-methyl-γ-octalactone), furfural, vanillin, and 5-methylfurfural from oak chips [32,40].
Ortega-Heras et al. [137] observed that wine aged with wood chips would give a similar sensory characteristic of wines aged in a new oak wood barrel for a short aging period (about three months); however, if the aging in a new oak wood barrels will be for a long period of time, differences in the sensory characteristics were detected. Nevertheless, the application of oak wood chips could be a good option for the production of young red wines with few gustative and olfactory wood notes
For white wines, Herrero et al. [119] associated the volatile compounds removed from oak wood with diverse toasting degrees with the sensory characteristics of varietal wines from Chardonnay and Sauvignon Blanc grapes. For these researchers, guaiacol, eugenol, vanillin, 4-methylguaiacol, furfuryl alcohol, and furfural were positively correlated to aroma quality perceived by specialists of Sauvignon Blanc wines. For Chardonnay wines, the highest aroma scores were positively correlated with the 4-vinylguaiacol and isoeugenol and negatively correlated with the existence of lactones and 4-vinylphenol in wines. Spillman et al. [122] established the role of some oak wood-extractable compounds in Chardonnay wines aged in new oak barrels, for example, the correlation between the volatile compounds of the wood manufactured during the toasting process and the “smoky” aroma. Herjavec et al. [117] reported a positive effect of the use of new Croatian oak barrels during the alcoholic fermentation on the sensory characteristics of Chardonnay and Sauvignon Blanc wines, in comparison with those fermented in stainless steel vats. Therefore, Gutiérrez-Afonso [138], also using white wines, considered the influence of wood (in the form of oak chips or in oak barrels) on the sensory proprieties during the fermentation. The outcomes indicated that American oak chips induce a higher intensity of coconut and vanilla notes and an increase in the degree of astringency and bitterness sensations than barrels.
Other research works studied the application of non oak wood species on the sensory profile of white wines. Thus, Young et al. [139] carry out the aging of Chardonnay wines in contact with numerous diverse wood species from New Zealand, such as Feijoca, Matai, Cherry beech, Silver beech, Macrocarpa, Manuka, Pohutukawa, Radiata pine, Totara, Kahikatea, and Rimu, in comparison with American oak wood during 2 weeks. The outcomes found by these researchers showed that only Chardonnay wine aged in contact with Macrocarpa wood presented analogous flavors with oak white wine. Loupassaki et al. [140] reported results about a comparative study between the application of oak (Q. petraea and Q. alba) and false acacia wood barrels on the sensory characteristics of white wine aged for 9 months. The outcomes showed that wines aging in barrels manufactured with Quercus alba wood had the higher average scores, with more intense aromatic profiles and notes of “oak”. Kozlovic et al. [75] reported after 12 months of aging that Malvazija wines aged in false acacia barrels presented higher finer textures and with more marked vanilla and spicy character than the wines aged in oak barrels. Other authors [88,89] also indicate that wines aged in false acacia barrels may have new sensory descriptors related to nutty, honeyed, and toasted notes.
Délia et al. [44] reported the positive influence of false acacia wood chips on the sensory characteristics of aged white wines. The outcomes showed significantly higher persistence in white wines aged with false acacia and French oak wood chips compared to other wines aged with cherry and American oak chip species. Jordão et al. [141] studied likewise the influence of toasted oak and cherry wood chips on sensory properties of numerous monovarietal white wines produced from Viosinho, Alvarinho, Loureiro, and Sauvignon Blanc grape varieties. The results showed that the influence of the application of cherry wood chips was mainly detected by the tasters for the wine vinified from the grape variety Viosinho with a rise of fruity aroma.
Finally, Del Galdo et al. [45] considered the application of diverse blends of toasted oak and cherry wood chips to develop numerous sensory descriptors of white wine. The authors reported a significant reduction of scores attributed to the panel taste during the aging time, although the white wine aged with cherry wood chips alone and control wine presented not as much of a marked decrease.

5. Final Remarks

In the last two decades, for numerous wood species, including oak species, a diversity of chemical compounds has been identified and quantified. However, only oak and chestnut species are authorized by the O.I.V. for enological application. Consequently, these two wood species are usually applied throughout the winemaking and aging process. Nevertheless, it is important to note that according to the O.I.V., the option for the application of wood chips is only possible for the Quercus genus. Nevertheless, more recently, the increasing request for oak wood has triggered significant growth in manufacturing and environmental concerns. In this way, other wood species have been pointed for winemaking, especially in non-European countries. However, the understanding of the effect of the application of non-oak wood species on wine quality is still new. Thus, the application of diverse wood species to the wine may be an alternative to produce wines with different sensory profiles. In this context, additional investigation is needed to increase the understanding of the potential effect of the different non-oak wood species on wine quality.

Author Contributions

A.M.J. and F.C. contributed equally to this work. All authors have read and agreed to the published version of the manuscript.

Funding

This research was funded by FCT-Portugal and COMPETE (grant number UIDB/00616/2020 and UIDP/00616/2020).

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

Not applicable.

Acknowledgments

The authors would like to thank the Chemistry Research Center-Vila Real (CQ-VR) and Polytechnic Institute of Viseu for their financial support.

Conflicts of Interest

The authors declare no conflict of interest.

References

  1. Parodi, G. A proposito di barriques. Vignevini 2000, 3, 77–83. [Google Scholar]
  2. Gautier, J.F. Le tonneau à travers Les âges. Rev. Oenol. Tech. Vitivinic. Oenol. 2003, 30, 13–15. [Google Scholar]
  3. Vivas, N.; Saint-Cricq de Gaulejac, N. The useful lifespan of new barrels and risk related to the use of old barrels. Aust. N. Z. Wine Ind. J. 1999, 14, 37–45. [Google Scholar]
  4. Singleton, V.L. Stockage des vins en barriques: Utilisation et variables significatives. J. Sci. Tech. Tonnellerie 2000, 6, 1–25. [Google Scholar]
  5. Carvalho, A. Identificação anatómica e caracterização física e mecânica das madeiras utilizadas no fabrico de quartolas para produção de aguardentes velhas de qualidade-Denominação Lourinhã. Ciênc. Téc. Vitic. 1998, 13, 71–105. [Google Scholar]
  6. Vivas, N. Manual de Tonelería: Destinado a Usuarios de Toneles; Mundi-Prensa Libros: Madrid, Spain, 2005; ISBN 84-8476-205-X. [Google Scholar]
  7. Fernández de Simón, B.; Hernández, T.; Cadahía, E.; Dueñas, M.; Estrella, I. Phenolic compounds in a Spanish red wine aged in barrels made of Spanish, French and American oak wood. Eur. Food Res. Technol. 2003, 216, 150–156. [Google Scholar] [CrossRef]
  8. Fernández De Simón, B.; Cadahía, E.; Jalocha, J. Volatile compounds in a Spanish red wine aged in barrels made of Spanish, French, and American oak wood. J. Agric. Food Chem. 2003, 51, 7671–7678. [Google Scholar] [CrossRef]
  9. Jordão, A.M.; Costa, F.; Fontes, L.; Correia, A.C.; Miljić, U.; Puškaš, V.; Nunes, F.M.; Cosme, F. Impact of the contact time of different oak wood chips on red wine phenolic composition evolution after bottling. In Proceedings of the 42th World Congress of Vine and Wine. BIO Web of Conferences, Geneva, Switzerland, 15–19 July 2019; Volume 15, p. 02019. [Google Scholar]
  10. Costa, M.; Fontes, L.; Correia, A.C.; Miljić, U.; Jordão, A.M. Impact of oak (Q. pyrenaica and (Q. pubescens) and cherry (P. avium) wood chip contact on phenolic composition and sensory profile evolution of red wines during bottle storage. OENO One 2020, 54, 1159–1181. [Google Scholar] [CrossRef]
  11. Jordão, A.M.; Ricardo-da-Silva, J.M.; Laureano, O. Comparison of volatile composition of cooperage oak wood of different origins (Quercus pyrenaica vs. Quercus alba and Quercus petraea). Mitt. Klosterneubg. 2005, 55, 31–40. [Google Scholar]
  12. Jordão, A.M.; Ricardo-da-Silva, J.M.; Laureano, O.; Adams, A.; Demyttenaere, J.; Verhé, R.; De Kimpe, N. Volatile composition analysis by solid-phase microextraction applied to oak wood used in cooperage (Q. pyrenaica and Q. petraea): Effect of botanical species and toasting process. J. Wood Sci. 2006, 52, 514–521. [Google Scholar] [CrossRef]
  13. Jordão, A.M.; Ricardo-da-Silva, J.M.; Laureano, O. Ellagitannins from Portuguese oak wood (Quercus pyrenaica Willd.) used in cooperage: Influence of geographical origin, coarseness of the grain and toasting level. Hollforschung 2007, 61, 155–160. [Google Scholar] [CrossRef]
  14. Gonçalves, F.J.; Jordão, A.M. Changes in antioxidant activity and proanthocyanidin fraction of red wine aged in contact with Portuguese (Quercus pyrenaica Willd.) and American (Quercus alba L.) oak wood chips. Ital. J. Food Sci. 2009, 21, 51–64. [Google Scholar]
  15. Fernández de Simón, B.; Cadahía, E.; del Álamo, M.; Nevares, I. Effect of size, seasoning and toasting in the volatile compounds in toasted oak wood and in a red wine treated with them. Anal. Chim. Acta 2010, 660, 211–220. [Google Scholar] [CrossRef] [PubMed]
  16. Fernández de Simón, B.; Cadahía, E.; Muiño, I.; del Álamo, M.; Nevares, I. Volatile composition of toasted oak chips and staves and of red wine aged with them. Am. J. Enol. Vitic. 2010, 61, 157–165. [Google Scholar]
  17. Gallego, L.; Del Alamo, M.; Nevares, I.; Fernández, J.A.; De Simón, B.F.; Cadahía, E. Phenolic compounds and sensorial characterization of wines aged with alternative to barrel products made of Spanish oak wood (Quercus pyrenaica Willd.). Food Sci. Technol. Int. 2012, 18, 151–165. [Google Scholar] [CrossRef]
  18. Castro-Vázquez, L.; Alañón, M.E.; Ricardo-da-Silva, J.M.; Pérez-Coello, M.S.; Laureanoof, O. Evaluation Portuguese and Spanish Quercus pyrenaica and Castanea sativa species used in cooperage as natural source of phenolic compounds. Eur. J. Food Sci. Technol. 2013, 237, 367–375. [Google Scholar] [CrossRef]
  19. Sánchez-Gómez, R.; Nevares, I.; Martínez-Gil, A.; del Alamo-Sanza, M. Oxygen consumption by red wines under different micro-oxygenation strategies and Q. Pyrenaica chips. Effects on color and phenolic characteristics. Beverages 2018, 4, 69. [Google Scholar] [CrossRef] [Green Version]
  20. McCallum, M.J.; Lopes-Correia, T.; Ricardo-da-Silva, J.M. Chemical evaluation of Carcavelos fortified wine aged in Portuguese (Quercus pyrenaica) and French (Quercus robur) oak barrels at medium and high toast. OENO One 2019, 53, 561–572. [Google Scholar] [CrossRef]
  21. Martínez-Gil, A.M.; Cadahía, E.; Fernández De Simón, B.; Gutiérrez-Gamboa, G.; Nevares, I.; Alamo-Sanza, M. Quercus Humboldtii (Colombian Oak): Characterization of oak heartwood phenolic composition with respect to traditional oak woods in oenology. Cienc. Tec. Vitivinic. 2017, 32, 93–101. [Google Scholar] [CrossRef]
  22. Martínez-Gil, A.M.; del Álamo-Sanza, M.; Gutiérrez-Gamboa, G.; Moreno-Simunovic, Y.; Nevares, I. Volatile composition and sensory characteristics of Carménère wines macerating with Colombian (Quercus humboldtii) oak chips compared to wines macerated with American (Q. alba) and European (Q. petraea) oak chips. Food Chem. 2018, 266, 90–100. [Google Scholar] [CrossRef] [Green Version]
  23. Resolution OENO 4/2005 of Organization of Vine and Wine. Available online: https://www.oiv.int/public/medias/776/oeno-4-2005-en.pdf (accessed on 23 August 2021).
  24. Costa, M.; Miglior, N.; Correia, A.C.; Ricardo-Da-Silva, J.M.; Jordão, A.M. Storage of a Touriga Nacional red wine in contact with Juglans regia L. and Quercus petraea L. wood chip species: Comparative influence on phenolic and sensory characteristics. Eur. Food Res. Technol. 2021, 247, 3037–3052. [Google Scholar] [CrossRef]
  25. Cerdán, T.G.; Ancín-Azpilicueta, C. Effect of oak barrel type on the volatile composition of wine: Storage time optimization. LWT—Food Sci. Technol. 2006, 39, 199–205. [Google Scholar] [CrossRef]
  26. Izquierdo-Cañas, P.M.; Mena-Morales, A.; García-Romero, E. Malolactic fermentation before or during wine aging in barrels. LWT—Food Sci. Technol. 2016, 66, 468–474. [Google Scholar] [CrossRef]
  27. Chatonnet, P.; Ricardo-da-Silva, J.M.; Dubourdieu, D. Influence de l’utilisation de barriques en chêne sessile européen (Quercus petraea) ou en chêne blanc américain (Quercuas alba) sur la composition et la qualité des vins rouges. Rev. Fr. D’oenologie 1997, 165, 44–48. [Google Scholar]
  28. Del Álamo, S.M.; Fernandez Escudero, J.A.; De Castro Torio, R. Changes in phenolic compounds and colour parameters of red wine aged with oak chips and in oak barrels. Food Sci. Technol. Int. 2004, 10, 233–241. [Google Scholar] [CrossRef]
  29. Matejícek, D.; Mikes, O.; Klejdus, B.; Sterbova, D.; Kubán, V. Changes in contents of phenolic compounds during maturing of barrique red wines. Food Chem. 2005, 90, 791–800. [Google Scholar] [CrossRef]
  30. Prida, A.; Chatonnet, P. Impact of oak-derived compounds on the olfactory perception of barrel-aged wines. Am. J. Enol. Vitic. 2010, 61, 408–413. [Google Scholar]
  31. Laqui-Estaña, J.; López-Solís, R.; Peña-Neira, Á.; Medel-Marabolí, M.; Obreque-Slier, E. Wines in contact with oak wood: The impact of the variety (Carménère and Cabernet Sauvignon), format (barrels, chips and staves), and aging time on the phenolic composition. J. Sci. Food Agric. 2019, 99, 436–448. [Google Scholar] [CrossRef]
  32. De Coninck, G.; Jordão, A.M.; Ricardo-da-Silva, J.M.; Laureano, O. Evolution of phenolic composition and sensory properties in red wine aged in contact with Portuguese and French oak wood chips. OENO One 2006, 40, 25–34. [Google Scholar] [CrossRef]
  33. Oberholster, A.; Elmendorf, B.L.; Lerno, L.A.; King, E.S.; Heymann, H.; Brenneman, C.E.; Boulton, R.B. Barrel maturation, oak alternatives and micro-oxygenation: Influence on red wine aging and quality. Food Chem. 2015, 173, 1250–1258. [Google Scholar] [CrossRef]
  34. Tavares, M.; Jordão, A.M.; Ricardo-Da-Silva, J.M. Impact of cherry, acacia and oak chips on red wine phenolic parameters and sensory profile. OENO One 2017, 51, 329–342. [Google Scholar] [CrossRef] [Green Version]
  35. Martínez-Gil, A.M.; del Álamo-Sanza, M.; Nevares, I.; Sánchez-Gómez, R.; Gallego, L. Effect of size, seasoning and toasting level of Quercus pyrenaica Willd. wood on wine phenolic composition during maturation process with micro-oxygenation. Food Res. Int. 2020, 128, 108703. [Google Scholar] [CrossRef] [PubMed]
  36. Santos, F.; Correia, A.C.; Ortega-Heras, M.; García-Lomillo, J.; González-SanJosé, M.L.; Jordão, A.M.; Ricardo-da-Silva, J.M. Acacia, cherry and oak wood chips used on a short aging period of rosé wines: Effects on general phenolic parameters, volatile composition and sensory profile. J. Sci. Food Agric. 2019, 99, 3588–3603. [Google Scholar] [CrossRef] [PubMed]
  37. Nunes, I.; Correia, A.C.; Jordão, A.M.; Ricardo-da-Silva, J.M. Use of oak and cherry wood chips during alcoholic fermentation and the maturation process of rosé wines: Impact on phenolic composition and sensory profile. Molecules 2020, 25, 1236. [Google Scholar] [CrossRef] [PubMed] [Green Version]
  38. Pérez-Coello, M.S.; González-Viñas, M.A.; García-Romero, E.; Cabezudo, M.D.; Sanz, J. Chemical and sensory changes in white wines fermented in the presence of oak chips. Int. J. Food Sci. Technol. 2000, 35, 23–32. [Google Scholar] [CrossRef]
  39. Pérez-Coello, M.S.; Sánchez, M.A.; García, E.; González-Viñas, M.A.; Sanz, J.; Cabezudo, M.D. Fermentation of white wines in the presence of wood chips of American and French oak. J. Agric. Food Chem. 2000, 48, 885–889. [Google Scholar] [CrossRef]
  40. Vivas, N.; Bourden Nonier, M.F.; Absalon, C.; Abad, V.L.; Jamet, F.; Vivas de Gaulejac, N.; Vitry, C.; Fouquet, É. Formation of fl avanol-aldehyde adducts in barrel-aged white wine—Possible contribution of these products to colour. S. Afr. J. Enol. Vitic. 2008, 29, 98–108. [Google Scholar] [CrossRef] [Green Version]
  41. Guchu, E.; Díaz-Maroto, M.C.; Pérez-Coello, M.S.; González-Viñas, M.A.; Cabezudo, M.D. Volatile composition and sensory characteristics of Chardonnay wines treated with American and Hungarian oak chips. Food Chem. 2006, 99, 350–359. [Google Scholar] [CrossRef]
  42. Sánchez-Palomo, E.; Alonso-Villegas, R.; Delgado, J.A.; González-Viñas, M.A. Improvement of Verdejo white wines by contact with oak chips at different winemaking stages. LWT-Food Sci. Technol. 2017, 79, 111–118. [Google Scholar] [CrossRef]
  43. Nunes, P.; Muxagata, S.; Correia, A.C.; Nunes, F.M.; Cosme, F.; Jordão, A.M. Effect of oak wood barrel capacity and utilization time on phenolic and sensorial profile evolution of an Encruzado white wine. J. Sci. Food Agric. 2017, 97, 4847–4856. [Google Scholar] [CrossRef]
  44. Délia, L.; Jordão, A.M.; Ricardo-da-Silva, J.M. Influence of different wood chips species (oak, acacia and cherry) used in a short period of aging on the quality of ‘Encruzado’ white wines. Mitt. Klosterneubg. 2017, 67, 84–96. [Google Scholar]
  45. Del Galdo, V.; Correia, A.C.; Jordão, A.M.; Ricardo-da-Silva, J.M. Blends of wood chips from oak and cherry: Impact on the general phenolic parameters and sensory profile of a white wine during the aging process. Vitis 2019, 58, 159–169. [Google Scholar] [CrossRef]
  46. Ibern-Gómez, M.; Andrés-Lacueva, C.; Lamuela-Raventós, R.M.; Lao-Luque, C.; Buxaderas, S.; De la Torre-Boronat, M.C. Differences in phenolic profile between oak wood and stainless steel fermentation in white Wines. Am. J. Enol. Vitic. 2001, 5, 159–164. [Google Scholar]
  47. Canas, S.; Quaresma, H.; Belchior, A.P.; Spranger, M.I.; Bruno-de-Sousa, R. Evaluation of wine brandies authenticity by the relationships between benzoic and cinnamic aldehydes and between furanic aldehydes. Ciênc. Téc. Vitic. 2004, 19, 13–27. Available online: http://hdl.handle.net/10400.5/4879 (accessed on 3 September 2021).
  48. Bautista-Ortin, A.B.; Martinez-Cutillas, A.; Ros-Garcia, J.M.; Lopez-Roca, J.M.; Gomez-Plaza, E. Improving colour extraction and stability in red wines: The use of maceration enzymes and enological tannins. Int. J. Food Sci. Technol. 2005, 40, 867–878. [Google Scholar] [CrossRef]
  49. Jordão, A.M.; Ricardo-da-Silva, J.M.; Laureano, O.; Mullen, W.; Crozier, A. Effect of ellagitannins, ellagic acid and some volatile compounds from oak wood on the (+)-catechin, procyanidin B1 and malvidin-3-glucoside content of model wine solutions. Aust. J. Grape Wine Res. 2008, 14, 260–270. [Google Scholar] [CrossRef] [Green Version]
  50. Fujieda, M.; Tanaka, T.; Suwa, Y.; Koshimizu, S.; Kouno, I. Isolation and structure of whiskey polyphenols produced by oxidation of oak wood ellagitannins. J. Agric. Food Chem. 2008, 56, 7305–7310. [Google Scholar] [CrossRef]
  51. Escudero-Gilete, M.L.; Hernanz, D.; Galán-Lorente, C.; Heredia, F.J.; Jara-Palacios, M.J. Potential of cooperage byproducts rich in ellagitannins to improve the antioxidant activity and color expression of red wine anthocyanins. Foods 2019, 8, 336. [Google Scholar] [CrossRef] [Green Version]
  52. Vivas, N.; Glories, Y. Les phénomènes d’oxydoréduction liés à l’élevage en barriques des vins rouges: Aspects technologiques. Rev. Fr. Oenol. 1993, 33, 33–38. [Google Scholar]
  53. Vivas, N.; Glories, Y. Role of oak wood ellagitannins in the oxidation process of red wines during aging. Am. J. Enol. Vitic. 1996, 47, 103–107. [Google Scholar]
  54. Masson, G.; Moutounet, M.; Puech, J.-L. Ellagitannins content of oak wood as a function of species and of sampling position in the tree. Am. J. Enol. Vitic. 1995, 46, 262–268. [Google Scholar]
  55. Puech, J.-L.; Feuillat, F.; Mosedale, J.R. The tannins of oak heartwood: Structure, properties, and their influence on wine flavor. Am. J. Enol. Vitic. 1999, 50, 69–478. [Google Scholar]
  56. Doussot, F.; De Jéso, B.; Quideau, S.; Pardon, P. Extractives content in cooperage oak wood during natural seasoning and toasting; influence of tree species, geographic location, and single-tree effects. J. Agric. Food Chem. 2002, 50, 5955–5961. [Google Scholar] [CrossRef] [PubMed]
  57. Canas, S.; Leandro, M.C.; Spranger, M.I.; Belchior, A.P. Influence of botanical species and geographical origin on the content of low molecular weight phenolic compounds of woods used in Portuguese cooperage. Holzforschung 2000, 54, 255–261. [Google Scholar] [CrossRef]
  58. Jordão, A.M.; Correia, A.C.; DelCampo, R.; González-SanJosé, M.L. Antioxidant capacity, scavenger activity and ellagitannins content from commercial oak pieces used in winemaking. Eur. Food Res. Technol. 2012, 235, 817–825. [Google Scholar] [CrossRef]
  59. Viriot, C.; Scalbert, A.; Hervé du Penhoat, C.L.M.; Moutounet, M. Ellagitannins in woods of sessile oak and sweet chestnut dimerization and hydrolysis during wood ageing. Phytochemistry 1994, 36, 1253–1260. [Google Scholar] [CrossRef]
  60. Matricardi, L.; Waterhouse, A.L. Influence of toasting technique on color and ellagitannins of oak wood in barrel making. Am. J. Enol. Vitic. 1999, 50, 519–525. [Google Scholar]
  61. Cadahía, E.; Varea, S.; Muñoz, L.; Fernández de Simón, B.; García-Vallejo, M.C. Evolution of ellagitannins in Spanish, French, and American oak woods during natural seasoning and toasting. J. Agric. Food Chem. 2001, 49, 3677–3684. [Google Scholar] [CrossRef]
  62. Feuillat, F.; Moio, L.; Guichard, E.; Marinov, M.; Fournier, N.; Puech, J.-L. Variation in the concentration of ellagitannins and cis- and trans-ß-methyl-γ-octalactone extracted from oak wood (Quercus robur L.; Quercus petraea Liebl.) under model wine cask conditions. Am. J. Enol. Vitic. 1997, 48, 509–515. [Google Scholar]
  63. Chatonnet, P.; Dubourdieu, D. Compa rative study of the characteristics of American white oak (Quercus alba) and European oak (Quercus petraea and Q. robur) for production of barrels used in barrel ageing of wines. Am. J. Enol. Vitic. 1998, 49, 79–85. [Google Scholar]
  64. Sanz, M.; Cadahía, E.; Esteruelas, E.; Muñoz, M.; Fernández De Simón, B.; Hernández, T.; Estrella, I. Phenolic compounds in cherry (Prunus avium) heartwood with a view to their use in cooperage. J. Agric. Food Chem. 2010, 58, 4907–4914. [Google Scholar] [CrossRef] [PubMed]
  65. Sanz, M.; De Simón, B.F.; Cadahía, E.; Esteruelas, E.; Muñoz, A.M.; Hernández, T.; Estrella, I.; Pinto, E. LC-DAD/ESI-MS/MS study of phenolic compounds in ash (Fraxinus excelsior L. and F. americana L.) heartwood. effect of toasting intensity at cooperage. J. Mass Spectrom. 2012, 47, 905–918. [Google Scholar] [CrossRef] [PubMed]
  66. Sanz, M.; Fernández de Simón, B.; Cadahía, E.; Esteruelas, E.; Muñoz, A.M.; Hernández, T.M.; Estrella, I. Polyphenolic profile as a useful tool to identify the wood used in wine aging. Anal. Chim. Acta 2012, 732, 33–45. [Google Scholar] [CrossRef] [PubMed]
  67. Sanz, M.; Fernández de Simón, B.; Esteruelas, E.; Muñoz, A.M.; Cadahía, E. Effect of toasting intensity at cooperage on phenolic compounds in acacia (Robinia pseudoacacia) heartwood. J. Agric. Food Chem. 2011, 59, 3135–3145. [Google Scholar] [CrossRef] [PubMed]
  68. Jordão, A.M.; Lozano, V.; Correia, A.C.; Ortega-Heras, M.; González-SanJosé, M.L. Comparative analysis of volatile and phenolic composition of alternative wood chips from cherry, acacia and oak for potential use in enology. In Proceedings of the 39th World Congress of Vine and Wine. BIO Web of Conferences, Bento Gonçalves, Brazil, 24–28 October 2016; Volume 7, p. 02012. [Google Scholar]
  69. Alañón, M.E.; Castro-Vázquez, L.; Díaz-Maroto, M.C.; Hermosín-Gutiérrez, I.; Gordon, M.H.; Pérez-Coello, M.S. Antioxidant capacity and phenolic composition of different woods used in cooperage. Food Chem. 2011, 129, 1584–1590. [Google Scholar] [CrossRef]
  70. Comandini, P.; Lerma-Garcia, M.J.; Simo-Alfonso, E.F.; Toschi, T.G. Tannin analysis of chestnut bark samples (Castanea sativa Mill.) by HPLC-DAD-MS. Food Chem. 2014, 157, 290–295. [Google Scholar] [CrossRef]
  71. Canas, S.; Leandro, M.C.; Spranger, M.I.; Belchior, A.P. Low molecular weight organic compounds of chestnut wood (Castanea sativa L.) and corresponding aged brandies. J. Agric. Food Chem. 1999, 47, 5023–5030. [Google Scholar] [CrossRef]
  72. Springmann, S.; Rogers, R.; Spiecker, H. Impact of artificial pruning on growth and secondary shoot development of wild cherry (Prunus avium L.). For. Ecol. Manag. 2011, 261, 764–769. [Google Scholar] [CrossRef]
  73. Chatonnet, P. Influence des Procédés de Tonnellerie et des Conditions D’élevage sur la Composition et la Qualité des Vins Élevés en Fûts de Chêne. Ph.D. Thesis, The University of Bordeaux, Bordeaux, France, 1995; 268p. [Google Scholar]
  74. Fernández de Simón, B.; Sanz, M.; Cadahia, E.; Martinez, J.; Esteruelas, E.; Munoz, A.M. Polyphenolic compounds as chemical markers of wine ageing in contact with cherry, chestnut, false acacia, ash and oak wood. Food Chem. 2014, 143, 66–76. [Google Scholar] [CrossRef]
  75. Kozlovic, G.; Jeromel, A.; Maslov, L.; Pollnitz, A.; Orlić, S. Use of acacia barrique barrels-Influence on the quality of malvazija from Istria wines. Food Chem. 2010, 120, 698–702. [Google Scholar] [CrossRef]
  76. De Rosso, M.; Cancian, D.; Panighel, A.; Vedova, A.D.; Flamini, R. Chemical compounds released from five different woods used to make barrels for aging wines and spirits: Volatile compounds and polyphenols. Wood Sci. Technol. 2009, 43, 375–385. [Google Scholar] [CrossRef]
  77. De Rosso, M.; Panighel, A.; Vedova, A.D.; Stella, L.; Flamini, R. Changes in Chemical Composition of a Red Wine Aged in Acacia, Cherry, Chestnut, Mulberry, and Oak Wood Barrels. J. Agric. Food Chem. 2009, 57, 1915–1920. [Google Scholar] [CrossRef] [PubMed]
  78. Jordão, A.M.; Lozano, V.; González-SanJosé, M.L. Influence of different wood chip extracts species on color changes and anthocyanin content in synthetic wine solutions. Foods 2019, 8, 254. [Google Scholar] [CrossRef] [PubMed] [Green Version]
  79. Soares, B.; Garcia, R.; Freitas, A.M.C.; Cabrita, M.J. Phenolic compounds released from oak, cherry, chestnut and robinia chips into a synthetic wine: Influence of toasting level. Cienc. Tec. Vitivinic. 2012, 27, 17–26. [Google Scholar]
  80. Schumacher, R.; Alañón, M.E.; Castro-vázquez, L.; Pérez-coello, M.S.; Díaz-Maroto, C. Evaluation of oak chips treatment on volatile composition and sensory characteristics of merlot wine. J. Food Qual. 2013, 36, 1–9. [Google Scholar] [CrossRef]
  81. Setzer, W. Volatile components of oak and cherry wood chips used in aging of beer, wine, and spirits. Am. J. Essent. Oil Nat. Prod. 2016, 4, 37–40. [Google Scholar]
  82. Gómez-Plaza, E.; Pérez-Prieto, L.J.; Fernández-Fernández, J.I.; López-Roca, J.M. The effect of successive uses of oak barrels on the extraction of oak-related volatile compounds from wine. Int. J. Food Sci. Technol. 2004, 39, 1069–1078. [Google Scholar] [CrossRef]
  83. Garde-Cerdán, T.; Ancín-Azpilicueta, C. Review of quality factors on wine ageing in oak barrels. Trends Food Sci. Technol. 2006, 17, 438–447. [Google Scholar] [CrossRef]
  84. Martins, N.; Garcia, R.; Gomes da Silva, M.; Cabrita, M.J. Volatile compounds from oak, cherry, chestnut and acacia chips: Influence of toasting level. Cienc. Tec. Vitivinic. 2012, 27, 49–57. [Google Scholar]
  85. Caldeira, I.; Clímaco, M.C.; Bruno De Sousa, R.; Belchior, A.P. Volatile composition of oak and chestnut woods used in brandy ageing: Modification induced by heat treatment. J. Food Eng. 2006, 76, 202–211. [Google Scholar] [CrossRef]
  86. Fernández de Simón, B.; Estruelas, E.; Muñoz, A.M.; Cadahía, E.; Sanz, M. Volatile compounds in acacia, chestnut, cherry, ash and oak woods, with a view to their use in cooperage. J. Agric. Food Chem. 2009, 57, 3217–3227. [Google Scholar] [CrossRef] [PubMed]
  87. Alañón, M.E.; Castro-Vázquez, L.; Díaz-Maroto, M.C.; Pérez-Coello, M.S. Aromatic potential of Castanea sativa Mill. compared to Quercus species to be used in cooperage. Food Chem. 2012, 130, 875–881. [Google Scholar] [CrossRef]
  88. Alarcón, M.E.; Díaz-Maroto, M.C.; Pérez-Coello, M.S.; Alañón, M.E. Isolation of natural flavoring compounds from cooperage woods by pressurized hot water extraction (PHWE). Holzforschung 2018, 73, 295–303. [Google Scholar] [CrossRef]
  89. Alañón, M.E.; Marchante, L.; Alarcón, M.; Díaz-Maroto, I.J.; Pérez-Coello, S.; Díaz-Maroto, M.C. Fingerprints of acacia aging treatments by barrels or chips based on volatile profile, sensorial properties, and multivariate analysis. J. Sci. Food Agric. 2018, 98, 5795–5806. [Google Scholar] [CrossRef] [PubMed]
  90. Garcia, R.; Soares, B.; Dias, C.B.; Freitas, A.M.C.; Cabrita, M.J. Phenolic and furanic compounds of Portuguese chestnut and French, American and Portuguese oak wood chips. Eur. Food Res. Technol. 2012, 235, 457–467. [Google Scholar] [CrossRef]
  91. Jarauta, I.; Cacho, J.; Ferreira, V. Concurrent phenomena contributing to the formation of the aroma of wine during aging in oak wood: An analytical study. J. Agric. Food Chem. 2005, 53, 4166–4177. [Google Scholar] [CrossRef]
  92. Zhang, B.; Cai, J.; Duan, C.-Q.; Reeves, M.J.; He, F. A Review of Polyphenolics in Oak Woods. Int. J. Mol. Sci. 2015, 16, 6978–7014. [Google Scholar] [CrossRef]
  93. Cano-López, M.; López-Roca, J.M.; Pardo-Minguez, F.; Gómez Plaza, E. Oak barrel maturation vs. micro-oxygenation: Effect on the formation of anthocyanin-derived pigments and wine colour. Food Chem. 2010, 119, 191–195. [Google Scholar] [CrossRef]
  94. Chassagne, D.; Guilloux-Benatier, M.; Alexandre, H.; Voilley, A. Sorption of wine volatile phenols by yeast lees. Food Chem. 2005, 91, 39–44. [Google Scholar] [CrossRef]
  95. Coelho, E.; Teixeira, J.A.; Domingues, L.; Tavares, T.; Oliveira, J.M. Factors affecting extraction of adsorbed wine volatile compounds and wood extractives from used oak wood. Food Chem. 2019, 295, 156–164. [Google Scholar] [CrossRef] [Green Version]
  96. Chira, K.; Teissedre, P.L. Chemical and sensory evaluation of wine matured in oak barrel: Effect of oak species involved and toasting process. Eur. Food Res. Technol. 2015, 240, 533–547. [Google Scholar] [CrossRef]
  97. González-Centeno, M.R.; Chira, K.; Teissedre, P.L. Ellagitannin content, volatile composition and sensory profile of wines from different countries matured in oak barrels subjected to different toasting methods. Food Chem. 2016, 210, 500–511. [Google Scholar] [CrossRef] [PubMed]
  98. Dimitrios, K.; Mas, A.; Portillo, M.C. High-Throughput Sequencing Approach to Analyze the Effect of Aging Time and Barrel Usage on the Microbial Community Composition of Red Wines. Front. Microbiol. 2020, 11, 21. [Google Scholar] [CrossRef]
  99. Ortega-Heras, M.; González-Sanjosé, M.L.; González-Huerta, C. Consideration of the influence of aging process, type of wine and oenological classic parameters on the levels of wood volatile compounds present in red wines. Food Chem. 2007, 103, 1434–1448. [Google Scholar] [CrossRef]
  100. Maga, J.A. Formation and Extraction of Cis- and Trans-β-methyl-γ-octalactone from Quercus Alba; Piggot, J.R., Patterson, A., Eds.; Distilled beverage flavour: Recent developments; Ellis Horwood Ltd.: Chichester, UK, 1989; pp. 171–176. [Google Scholar]
  101. Garde-Cerdán, T.; Torrea-Goñi, D.; Ancín-Azpilicueta, C. Accumulation of volatile compounds during ageing of two red wines with different composition. J. Food Eng. 2004, 65, 349–356. [Google Scholar] [CrossRef]
  102. Towey, J.P.; Waterhouse, A.L. The extraction of volatile compounds from French and American oak barrels in Chardonnay during three successive vintages. Am. J. Enol. Vitic. 1996, 47, 163–172. [Google Scholar]
  103. Garde Cerdán, T.; Rodríguez Mozaz, S.; Ancín Azpilicueta, C. Volatile composition of aged wine in used barrels of French oak and of American oak. Food Res. Int. 2002, 35, 603–610. [Google Scholar] [CrossRef]
  104. Pérez-Prieto, L.J.; López-Roca, J.M.; Martínez-Cutillas, A.; Pardo Mínguez, F.; Gómez-Plaza, E. Maturing wines in oak barrels. Effects of origin, volume, and age of the barrel on the wine volatile composition. J. Agric. Food Chem. 2002, 50, 3272–3276. [Google Scholar] [CrossRef] [PubMed]
  105. Garde-Cerdán, T.; Torrea-Goñi, D.; Ancín-Azpilicueta, C. Changes in the concentration of volatile oak compounds and esters in red wine stored for 18 months in re-used French oak barrels. Aust. J. Grape Wine Res. 2008, 8, 140–145. [Google Scholar] [CrossRef]
  106. Chinnici, F.; Natali, N.; Sonni, F.; Bellachioma, A.; Riponi, C. Comparative changes in color features and pigment composition of red wines aged in oak and cherry wood casks. J. Agric. Food Chem. 2011, 59, 6575–6582. [Google Scholar] [CrossRef]
  107. Chinnici, F.; Natali, N.; Bellachioma, A.; Versari, A.; Riponi, C. Changes in phenolic composition of red wines aged in cherry wood. LWT-Food Sci. Technol. 2015, 60, 977–984. [Google Scholar] [CrossRef]
  108. Cerezo, A.B.; Tesfaye, W.; Torija, M.J.; Mateo, E.; García-Parrilla, C.; Troncoso, A.M. The phenolic composition of red wine vinegar produced in barrels made from different woods. Food Chem. 2008, 109, 606–615. [Google Scholar] [CrossRef]
  109. Alañón, M.E.; Castro-Vázquez, L.; Díaz-Maroto, M.C.; Gordon, M.H.; Pérez-Coello, M.S. A study of the antioxidant capacity of oak wood used in wine ageing and the correlation with polyphenol composition. Food Chem. 2011, 128, 997–1002. [Google Scholar] [CrossRef] [Green Version]
  110. Madrera, R.R.; Valles, B.S.; García, Y.D.; del Valle Argüelles, P.; Lobo, A.P. Alternative woods for aging distillates-an insight into their phenolic profiles and antioxidant activities. Food Sci. Biotechnol. 2010, 19, 1129–1134. [Google Scholar] [CrossRef]
  111. Del Alamo Sanza, M.; Nevares Domınguez, I.; Cárcel Cárcel, L.M.; Navas Gracia, L. Analysis for low molecular weight phenolic compounds in a red wine aged in oak chips. Anal. Chim. Acta 2004, 513, 229–237. [Google Scholar] [CrossRef]
  112. Setzer, W.N. Lignin-derived oak phenolics: A theoretical examination of additional potential health benefits of red wine. J. Mol. Model. 2011, 17, 1841–1845. [Google Scholar] [CrossRef] [PubMed]
  113. Tao, Y.; García, J.F.; Sun, D.W. Advances in wine aging technologies for enhancing wine quality and accelerating wine aging process. Crit. Rev. Food Sci. Nutr. 2014, 54, 817–835. [Google Scholar] [CrossRef]
  114. Fernández de Simón, B.; Martínez, J.; Sanz, M.; Cadahía, E.; Esteruelas, E.; Muñoz, A.M. Volatile compounds and sensorial characterisation of red wine aged in cherry, chestnut, false acacia, ash and oak wood barrels. Food Chem. 2014, 147, 346–356. [Google Scholar] [CrossRef]
  115. Liberatore, M.T.; Pati, S.; Del Nobile, M.A.; La Notte, E. Aroma quality improvement of Chardonnay white wine by fermentation and ageing in barrique on lees. Int. Food Res. 2010, 43, 996–1002. [Google Scholar] [CrossRef]
  116. Aleixandre, J.L.; Padilla, A.I.; Navarro, L.L.; Suria, A.; García, M.; Álvarez, I. Optimisation of making barrel-fermented dry Muscatel wines. J. Agric. Food Chem. 2003, 51, 1889–1893. [Google Scholar] [CrossRef]
  117. Herjavec, S.; Jeromel, A.; Da Silva, A.; Orlic, S.; Redzepovic, S. The quality of white wines fermented in Croatian oak barrels. Food Chem. 2007, 100, 124–128. [Google Scholar] [CrossRef]
  118. Lukic, I.; Jedrejcic, N.; KovacevicGanic, K.; Staver, M.; Persuric, D. Phenolic and aroma composition of white wines produced by prolonged maceration and maturation in wooden barrels. Food Technol. Biotechnol. 2015, 53, 407–418. [Google Scholar] [CrossRef]
  119. Herrero, P.; Sáenz-Navajas, M.P.; Avizcuri, J.M.; Culleré, L.; Balda, P.; Antón, E.C.; Ferreira, V.; Escudero, A. Study of chardonnay and Sauvignon blanc wines form D.O.Ca Rioja (Spain) aged in different French oak wood barrels: Chemical and aroma quality aspects. Food Res. Int. 2016, 89, 227–236. [Google Scholar] [CrossRef] [PubMed]
  120. Valdés, M.E.; Ramírez, R.; Martínez-Cañas, M.A.; Frutos-Puerto, S.; Moreno, D. Accelerating Aging of White and Red Wines by the Application of Hydrostatic High Pressure and Maceration with Holm Oak (Quercus ilex) Chips. Influence on Physicochemical and Sensory Characteristics. Foods 2021, 10, 899. [Google Scholar] [CrossRef] [PubMed]
  121. Chatonnet, P. Les compose’s aromatiques du bois de cheêne cédeés aux vins. Influence des ope´rations de chauffe en tonnellerie. In Le bois et la qualite des vins et des eaux-de-vie. J. Inter. Sci. Vigne Vin. 1992, 81, 91. [Google Scholar]
  122. Spillman, P.J.; Sefton, M.A.; Gawel, R. The effect of oak Wood source, location of seasoning and coopering on the composition of volatile compounds in oak-matured wines. Aust. J. Grape Wine Res. 2004, 10, 216–226. [Google Scholar] [CrossRef]
  123. Boidron, J.N.; Chatonnet, P.; Pons, M. The influence of wood on certain odorous substances in wines. Connaiss. Vigne Vin. 1988, 22, 275–294. [Google Scholar] [CrossRef]
  124. Swan, J.S.; Burtles, S.M. V The development of flavour in potable spirits. Chem. Soc. Rev. 1978, 7, 201–211. [Google Scholar] [CrossRef]
  125. Chatonnet, P.; Dubourdieu, D.; Boidron, J.N.; Pons, M. The origin of ethylphenols in wines. J. Sci. Food Agric. 1992, 60, 165–178. [Google Scholar] [CrossRef]
  126. Masson, G.; Guichard, E.; Fournier, N.; Puech, J.L. Teneurs en stéréo-isomeres de la β-metil γ-octolactone des bois de chêne européens et amé ricains. Application aux vins et aux eaux-de-vie. J. Sci. Tech. Tonn. 1997, 3, 1–8. [Google Scholar]
  127. Chatonnet, P.; Boidron, J.N.; Pons, M. Maturation of red wines in oak barrels: Evolution of some volatile compounds and their aromatic impact. Sci. Aliment. 1990, 10, 565–587. [Google Scholar]
  128. Glabasnia, A.; Hofmann, T. Sensory-Directed Identification of Taste-Active Ellagitannins in American (Quercus alba L.) and European Oak Wood (Quercus robur L.) and Quantitative Analysis in Bourbon Whiskey and Oak-Matured Red Wines. J. Agric. Food Chem. 2006, 54, 3380–3390. [Google Scholar] [CrossRef] [PubMed]
  129. Hale, M.D.; McCafferty, K.; Larmie, E.; Newton, J.; Swan, J.S. The influence of oak seasoning and toasting parameters on the composition and quality of wine. Am. J. Enol. Vitic. 1999, 50, 495–502. [Google Scholar]
  130. Zea, L.; Moyano, L.; Moreno, J.A.; Medina, M. Aroma series as fingerprints for biological ageing in fino sherry-type wines. J. Sci. Food Agric. 2007, 87, 2319–2326. [Google Scholar] [CrossRef]
  131. Díaz-Maroto, M.C.; Guchu, E.; Castro-Vázquez, L.; de Torres, C.; Pérez-Coello, M.S. Aroma-active compounds of American, French, Hungarian and Russian oak Woods, studied by GC-MS and GC-O. Flavour Fragr. J. 2008, 23, 93–98. [Google Scholar] [CrossRef]
  132. Suna, M.; Ito, T.; Hiroshima, K.; Sato, M.; Uehara, T.; Ohno, T.; Watanabe, S.; Takahashi, H.; Hashizume, K. Analysis of volatile phenolic compounds responsible for 4-vinylguaiacol-like odor characteristics of sake. Food Sci. Technol. Res. 2016, 22, 111–116. [Google Scholar] [CrossRef] [Green Version]
  133. Wilkinson, K.L.; Elsey, G.M.; Prager, R.H.; Tanaka, T.; Sefton, M.A. Precursors to oak lactone. Part 2: Synthesis, separation and cleavage of several ß-D-glucopyranosides of 3-methyl-4-hydroxyoctanoic acid. Tetrahedron 2004, 60, 6091–6100. [Google Scholar] [CrossRef]
  134. López, R.; Aznar, M.; Cacho, J.; Ferreira, V. Determination of minor and trace volatile compounds in wine by solid-phase extraction and gas chromatography with mass spectrometric detection. J. Chromatogr. A 2002, 966, 167–177. [Google Scholar] [CrossRef]
  135. Cutzach, I.; Chatonnet, P.; Dubourdieu, D. Study of the formation mechanisms of some volatile compounds during aging of sweet fortified wines. J. Agric. Food Chem. 1999, 47, 2837–2846. [Google Scholar] [CrossRef]
  136. Spillman, P.J.; Pollnitz, A.P.; Liacopoulos, D.; Skouroumounis, G.K.; Sefton, M.A. Accumulation of Vanillin during Barrel-Aging of White, Red, and Model Wines. J. Agric. Food Chem. 1997, 45, 2584–2589. [Google Scholar] [CrossRef]
  137. Ortega-Heras, M.; Perez-Magarino, S.; Cano-Mozo, E.; Gonzalez-San Jose, M.L. Differences in the phenolic composition and sensory profile between red wines aged in oak barrels and wines aged with oak chips. LWT-Food Sci. Technol. 2010, 43, 1533–1541. [Google Scholar] [CrossRef]
  138. Gutiérrez Afonso, V.L. Sensory Descriptive Analysis Between White Wines Fermented With Oak Chips and In Barrels. J. Food Sci. 2006, 67, 2415–2419. [Google Scholar] [CrossRef]
  139. Young, O.A.; Kaushal, M.; Robertson, J.D.; Burns, H.; Nunns, S.J. Use of species other than oak to flavor wine: An exploratory survey. J. Food Sci. 2010, 75, S490–S498. [Google Scholar] [CrossRef]
  140. Loupassaki, S.; Abouzer, M.; Basalekou, M.; Fyssarakis, I.; Makris, D.P. Evolution pattern of wood-related volatiles during traditional and artificial ageing of commercial red and white wines: Association with sensory analysis. Int. Food Res. 2016, 23, 1459–1465. [Google Scholar]
  141. Jordão, A.M.; Pina, A.; Montalbano, I.; Correia, A.C.; Ricardo-da-Silva, J.M. Sensory profile of varietal white wines submitted to a short period of aging in contact with oak and cherry wood chips. In Book of Abstracts of Forty-First World Congress of Vine and Wine; OIV: Punta Del Este, Uruguay, 2018; p. 979. [Google Scholar]
Table 3. Influence of toasting level on volatile composition of different oak wood species.
Table 3. Influence of toasting level on volatile composition of different oak wood species.
Toasting Level
Volatile
Compounds
Without ToastingLight ToastingMedium ToastingStrong
Toasting
Oak SpeciesReferences
Vanillin1.6–2.5nd10.5–23.422.0–33.6Q. pyrenaica[11] (1)
6.8–7.5nd24.1–34.57.5–8.8Q. alba
2.0–3.4nd48.5–60.03.0–6.3Q. petraea
nd27.4120.0244.0Q. alba[16] (2)
nd120.0172.0262.0Q. petraea
ndnd14.59ndQ. alba[90] (3)
n.d.12.8616.7724.76Q. petraea
Syringaldehyde14.9–16.5nd82.0–88.469.0–88.8Q. pyrenaica[11] (1)
16.3–20.2nd24.1–34.520.5–31.5Q. alba
12.5–14.8nd48.5–60.085.0–118.0Q. petraea
nd57.4343.0768.0Q. alba[16] (2)
nd196.0443.0721.0Q. petraea
ndnd40.0ndQ. alba[90] (3)
50.572.263.475.2Q. petraea
Furfural3.9–4.5nd2176–26701635–2155Q. pyrenaica[11] (1)
1.2–1.8nd357.5–960.0353.5–787.5Q. alba
3.4–7.0nd723.0–772.5118.0–613.0Q. petraea
nd41.0681.061.0Q. alba[16] (2)
nd78.0357.0170.0Q. petraea
ndnd2.61ndQ. alba[90] (3)
7.114.34.128.6Q. petraea
5-Hydroxymethyl-furfural0.0–1.3nd3344–50782306–2976Q. pyrenaica[11] (1)
0.4–0.7nd1678–3221781.9–922.3Q. alba
0.3–0.5nd1203–1722654.2–980.6Q. petraea
nd14.674.530.2Q. alba[16] (2)
nd37.258.344.2Q. petraea
ndnd10.7ndQ. alba[90] (3)
5.737.96.1312.66Q. petraea
Trans-β-methyl-γ-octalactonend-8.3nd4.8–7.05.0–7.2Q. pyrenaica[11](1)
4.0–5.0nd6.4–7.44.2–7.4Q. alba
5.0–6.7nd5.4–11.35.3–11.5Q. petraea
nd3.356.632.78Q. alba[16] (2)
nd11.59.654.43Q. petraea
Cis-β-methyl-γ-
octalactone
5.3–10.0nd3.6–13.72.9–9.6Q. pyrenaica[11] (1)
22.3–23.1nd26.5–45.516.1–23.6Q. alba
14.0–21.3nd14.1–18.57.4–18.2Q. petraea
nd24.931.114.6Q. alba[16] (2)
nd11.412.17.59Q. petraea
(1) mg/g dried wood; (2) μg/g wood; (3) mg/100g wood; nd—not detected.
Table 4. Wine volatile compounds (μg/L) aged in oak barrels with different utilization times.
Table 4. Wine volatile compounds (μg/L) aged in oak barrels with different utilization times.
Volatile CompoundsWine CharacteristicsFrench OakAmerican Oak Reference
New oak barrelsMonastrell wine aged for 6 months [104]
Alcohols × 10−3~325~325
Acids × 10−1~200~200
Esters × 10−2~40~40
Furfuryl × 10−1~140~120
Guaiacol~10~10
4-Methyl guaiacol~10~25
4-Ethyl phenol~300~320
4-Ethyl guaiacol~25~10
Trans-oak lactone~40~25
Cis-oak lactone~125~400
Vanillin~200~175
Oak barrels used twiceBlend wine of Tempranillo (60%), Cabernet Sauvignon (20%), and Garnacha (20%) aged for 12 months [105]
Furfural771
5-Methyl furfural135
5-Hydroxymethyl furfural0.02
Furfuryl alcohol3714
Cis-oak lactone79
Trans-oak lactone73
γ-Nonalactone2.6
γ-Butyrolactone49,930
Syringaldehyde312
Coniferaldehyde40
Vanillin89
Acetovanillone114
β-Ionone0.16
Eugenol20
Guaiacol8.8
4-Methyl guaiacol0.06
Phenol15.52
m-Cresol0.8
p-Cresol0.19
4-Ethyl phenol656
4-Ethyl guaiacol87
2-Phenyl ethanol2051
Ethyl butyrate517
Ethyl hexanoate206
Ethyl octanoate246
Ethyl decanoate9
Ethyl lactate31,198
Oak barrels used 3 timesMonastrell wine aged for 6 months [106]
Alcohols × 10−3~350~325
Acids × 10−1~240~225
Esters × 10−2~~40~40
Furfuryl × 10−1~125~120
Guaiacol~10~10
4-Methyl guaiacol~10~10
4-Ethyl phenol~60~175
4-Ethyl guaiacolnd~5
Trans-oak lactone~20~5
Cis-oak lactone~75~100
Vanillin~60~75
Oak barrels used 5 timesBlend wine (Tempranillo 41% and Cabernet Sauvignon 59%) aged for 12 months [103]
Furfural89–20670–110
5-Methyl furfural4.0–5.05–13
Furfuryl alcohol516–620115–447
Cis-oak lactone44–89100–151
Trans-oak lactone28–5120–37
γ-Butyrolactone18,200–19,30017,900–18,100
γ-Nonalactone1.6–2.61.8–2.6
Ethyl butyrate225–270246–272
Ethyl hexanoate264–294292–313
Ethyl octanoate349–353345–355
Ethyl decanoate85–8991–106
Isoamyl acetate276–296245–338
Ethyl lactate26,200–34,50014,700–17,500
Vanillin25–359–25
Syringaldehyde5–71–4
Coniferaldehyde17–2015–18
Acetovanillone145–177113–116
β-Ionone0.20–0.300.20–0.30
Guaiacol5–65–7
4-Methyl guaiacol0.030–0.0300.04–0.05
Eugenol13–2217–25
4-Ethyl guaiacol271–306209–274
4-Ethyl phenol1540–18501160–1590
Phenol5–75–8
p-Cresol0.05–0.060.05–0.06
m-Cresol1–20.1–1.0
2-Phenyl ethanol3170–34702780–3320
nd—not detected.
Table 5. Red wine (Sangiovese (85%) and Merlot (15%)) phenolic compounds (mg/L) aged in oak and cherry wood with 225 L capacity during 2 and 4 months Adapted from [107] and Syrah red wines aged in cherry, chestnut, false acacia, ash, and oak wood barrels with 225 L capacity (D.O. Cataluña aged 6 months) Adapted from [74].
Table 5. Red wine (Sangiovese (85%) and Merlot (15%)) phenolic compounds (mg/L) aged in oak and cherry wood with 225 L capacity during 2 and 4 months Adapted from [107] and Syrah red wines aged in cherry, chestnut, false acacia, ash, and oak wood barrels with 225 L capacity (D.O. Cataluña aged 6 months) Adapted from [74].
Compound2 Months4 Months6 Months
OakCherryOakCherryCherryChestnutFalse AcaciaAshOak
Protocatechuic acid4.204.273.742.721.020.240.90.820.73
Vanillic acid1.631.371.811.143.593.25nq4.883.62
Syringic acid 5.163.953.324.093.56
Caffeic acid6.726.466.165.8222.6615.6220.2121.2824.82
p-Cumaric acid1.461.340.891.080.820.320.330.380.41
Caftaric acid38.836.936.636.30.070.540.710.410.07
GRP7.086.926.175.96
Cis p-Coumaric acid 4.011.274.314.24.25
Trans p-Coumaric acid 46.689.4540.1441.8947.13
Ferulic acid 0.561.021.411.291.07
Cis-Coutaric acid2.512.572.392.440.030.110.060.03nd
Trans-Coutaric acid7.907.827.977.630.040.360.170.13nd
Fertaric acid13.112.613.212.20.160.190.910.05nd
Ethyl cumarate0.100.12trtr
(Epi)catechin gallate 4.524.36nq4.065.12
(+)-Catechin56.153.042.721.447.738.8835.3437.540.13
(−)-Epicatechin52.045.238.620.510.819.819.329.1710.35
Procyanidin B182.875.666.526.7
Procyanidin B286.973.968.427.711.145.784.927.549.11
Isorhamnetin-3-glucoside2.071.832.061.747.826.116.287.736.59
Syringetin-3-galactoside nd0.542.490.822.37
Isorhamnetin1.201.161.401.21
Kaempferol1.331.431.601.281.051.020.670.560.56
Myricetin-3-glucoside4.912.884.933.435.114.284.664.624.69
Myricetin5.375.774.473.141.911.531.812.551.37
Quercetin14.616.714.68.5527.8223.9923.7223.4126.24
Quercetin-3-glucoside1.391.230.790.643.484.383.142.972.93
Quercetin-3-glucuronide7.286.576.754.440.841.390.740.720.57
Laricitrin-3-glucoside 13.7011.9612.6213.0713.42
Tyrosol57.149.455.552.60.820.730.841.010.84
Trans-Resveratrol1.010.941.040.691.351.181.771.381.57
Trans-Resveratrol glucoside4.105.015.495.331.721.452.351.612.01
cherry wood wines aged phenolic markers
Eriodictyolndndnd0.090.63
Flavanone derivativend0.31nd0.51
Sakuranetinnd0.86nd2.21
Pinocembrinnd1.44nd1.72
Chrysinnd0.11nd0.71
Taxifolin 3.64
Prunin 0.76
Aromadendrin 5.56
Naringenin 5.57
Isosakuranetin 3.98
chestnut wood wines aged phenolic markers
Gallic acid66.764.168.064.721.3843.9133.0927.7730.46
Ellagic acid4.531.397.663.445.9420.414.545.5411.61
Ethyl gallate47.033.125.914.18.9911.737.958.119.16
Valoneic acid dilactone 1.69
false acacia wood wines aged phenolic markers
2,4-Dihydroxybenzoic acid 2.19
2,4-Dihydroxybenzaldehyde 16.48
Dihydrorobinetin 79.24
Pentahydroxydihydroflavonol 1.75
Tetrahydroxydihydroflavonol 5.69
Fustin 4.33
Trihidroxymethoxy dihydroflavonol 2.78
Robtin 1.49
Butin 3.41
Robinetin 30.01
Tetrahydroxyaurone 3.28
Butein 2.63
nd—not detected; tr trace; nq = not quantified, interference by other peaks.
Table 6. Red wine (Syrah) aged 12 months in cherry, chestnut, false acacia, ash, and oak wood, white wine (Malvazija) aged in false acacia and oak wood, and Chardonnay aged in false acacia volatile compounds (μg/L) Adapted from [75,89,114].
Table 6. Red wine (Syrah) aged 12 months in cherry, chestnut, false acacia, ash, and oak wood, white wine (Malvazija) aged in false acacia and oak wood, and Chardonnay aged in false acacia volatile compounds (μg/L) Adapted from [75,89,114].
CompoundRed wine (12 Months)White Wine
CherryChestnutFalse AcaciaAshOakFalse Acacia
(12 Months)
Oak
(12 Months)
False Acacia
(1 to 4 Months)
Furfural10150923866.239.882.8–1236.3740.2–1795.824–9.2
5-Methyl furfural31.824145057.88424.3–250.693–173.35.2–0.1
5-Hydroxymethylfurfural145689248339703 1.4–0.8
5-Acetoxymethyl-2-furfural1.815.514.852.582.09
2-Furanmethanol155014,12034158786248
Methyl-2-furoate13.710.443.028.831.9
Ethyl-2-furoate28.353.454.948.157.0
1-(2-Furanyl)-ethanone62.1299161c76.8420
1-Methoxy-2-ethoxyethyl-1-furan38.716939.324.820.5
3-Ethylcyclotenend1.226.7326.38.28
4,5-Dimethyl-2-cyclohexen-1-one0.45nd10.514.710.0
γ-Butyrolactone42404419430740074334 0.1
Whiskylactone transnd21.3ndnd99.40.2–0.30.5–38.7
Whiskylactone cisnd31.2ndnd5770.4–0.51.2–42.7
Phenol0.98.479.0610.89.071.8–3.11.6–2.1
o-Cresol2.202.042.565.752.280.3–1.3
p-Cresol13.22.843.274.502.530.3
m-Cresol1.791.360.592.241.040.5–0.9
4-Ethylphenol43141548.1c4792740.4–0.7 6.2–3.3
Catechol4.704.65nd nd nd
4-Methylcatechol10.411.43.8114.2nd
Guaiacol42.859.359.875.143.82.7–31.44.9–9.23.1–0.8
4-Methylguaiacol24.651.514.134.831.5 0.9–0.3
4-Ethylguaiacol73.349.119.991.524.20.7–2.60.6–1.31.4–0.7
Eugenol10.511819.312.81012.5–84.4–6.60.9–0.6
Cis-isoeugenol 0.5–1.60.6
Trans-isoeugenol 8.6–33.13.6–7.9
2,4-Dihydroxybenzaldehydendnd1248ndnd
p-Anisaldehyde4.42nd0.29ndnd
Vanillin3044562336964080.02–0.030.02–0.0538.1–1.2
Syringaldehyde18771189768109013050.25–0.290.12–0.1343.1–1.0
Acetovanillone75.192.461.311162.4 59.5–30
Methyl benzoate94ndnd 0.43nd
Ethyl benzoate29.16ndnd nd nd
nd—not detected.
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Share and Cite

MDPI and ACS Style

Jordão, A.M.; Cosme, F. The Application of Wood Species in Enology: Chemical Wood Composition and Effect on Wine Quality. Appl. Sci. 2022, 12, 3179. https://doi.org/10.3390/app12063179

AMA Style

Jordão AM, Cosme F. The Application of Wood Species in Enology: Chemical Wood Composition and Effect on Wine Quality. Applied Sciences. 2022; 12(6):3179. https://doi.org/10.3390/app12063179

Chicago/Turabian Style

Jordão, António M., and Fernanda Cosme. 2022. "The Application of Wood Species in Enology: Chemical Wood Composition and Effect on Wine Quality" Applied Sciences 12, no. 6: 3179. https://doi.org/10.3390/app12063179

APA Style

Jordão, A. M., & Cosme, F. (2022). The Application of Wood Species in Enology: Chemical Wood Composition and Effect on Wine Quality. Applied Sciences, 12(6), 3179. https://doi.org/10.3390/app12063179

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop