Beverages

19 pages, 3600 KiB

Open AccessArticle

Influences of Fermentation Conditions on the Chemical Composition of Red Dragon Fruit (Hylocereus polyrhizus) Wine

by Truong Bao Ngoc, Pham Van Thinh, Dang Thuy Mui, Le Hanh Uyen, Nguyen Ngoc Kim Ngan, Ngo Thi Kim Tran, Pham Hoang Tien Khang, Le Quang Huy, Truong Ngoc Minh and Nguyen Quang Trung

Beverages 2024, 10(3), 61; https://doi.org/10.3390/beverages10030061 - 11 Jul 2024

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Abstract

Red dragon fruit (Hylocereus polyrhizus), recognized globally for its substantial nutrient content and health benefits, has been extensively studied; studies have particularly focused on the fruit, while the composition of the stem remains less explored. This research focuses on optimizing fermentation [...] Read more.

Red dragon fruit (Hylocereus polyrhizus), recognized globally for its substantial nutrient content and health benefits, has been extensively studied; studies have particularly focused on the fruit, while the composition of the stem remains less explored. This research focuses on optimizing fermentation parameters for red dragon fruit wine, specifically examining yeast-strain selection, juice-to-water dilution ratios, and yeast concentrations. Saccharomyces cerevisiae RV002 emerged as the optimal strain due to its robust performance and adaptability under adverse conditions. The study identified a 50% dilution ratio as ideal for maximizing clarity and the sensory attributes of the wine, whereas dilution ratios exceeding 90% significantly reduced ethanol content below acceptable commercial standards. An optimal yeast concentration of 1 g/L was found to balance microbial suppression and alcohol yield effectively; deviations from this concentration led to microbial contamination or impaired fermentation dynamics. Fermentation markedly altered the biochemical properties of Hylocereus polyrhizus, reducing sugar and vitamin C levels while increasing polyphenol content and antioxidant activity, thereby enhancing potential health benefits. These findings underscore the transformative effects of microbial activity on the substrate’s chemical landscape and highlight the potential of tailored fermentation strategies to enhance the utility and value of underutilized fruits in sustainable agricultural practices. Full article

(This article belongs to the Section Wine, Spirits and Oenological Products)

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18 pages, 2477 KiB

Open AccessArticle

Innovative Green Tea Mate: Physicochemical Profile and Sensory Aspects

by Selene Ollani, Caterina Lo Presti, Dario Donno, Ilaria Stura, Nicole Roberta Giuggioli and Cristiana Peano

Beverages 2024, 10(3), 60; https://doi.org/10.3390/beverages10030060 - 11 Jul 2024

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Abstract

Yerba mate (Ilex paraguariensis) is a plant originating from South America. From this plant, mate a drink is produced. Brazil is the first mate producer in the world. The diffusion of mate is mainly limited to the native regions of South [...] Read more.

Yerba mate (Ilex paraguariensis) is a plant originating from South America. From this plant, mate a drink is produced. Brazil is the first mate producer in the world. The diffusion of mate is mainly limited to the native regions of South America, as it is consumed with cuia and bombilla. Trying to expand mate culture and export it towards Europe makes it necessary to offer this drink in a new guise that sets it apart from traditional preparation patterns. In this instance, the introduction of green tea mate may represent a solution. This innovative product comes from I. paraguariensis sprouts, which are further processed and consumed as green tea from Camellia sinensis. The present study aimed to investigate the physico-chemical and nutraceutical characteristics and consumer perceptions towards the visual aspect of the innovative green tea mate (L1, L2, and L3) compared to commercial traditional Brazilian mate (CI and CB) and roasted mate (L). Moreover, a preliminary sensory evaluation with untrained panellists was carried out. Significant results were detected, highlighting the higher content of bioactive compounds in the innovative product. Total Phenolic Content (TPC) almost doubled in green tea mate (L1 117.14 mg GAE/g d.p., L2 128.10 mg GAE/g d.p., L3 126.21 mg GAE/g d.p.) compared to the other samples (CI 71.91 mg GAE/g d.p., CB 54.23 mg GAE/g d.p., L 34.16 mg GAE/g d.p.) (p < 0.05). Considering caffeine, batches L1 and L3 had a content of 3.68 mg/g d.p. and 3.58 mg/g d.p., respectively, significantly higher when compared to the amount retrieved in the CB sample, 1.57 mg/g d.p. (p < 0.05). The consumer survey demonstrated the interest of consumers towards the new product, as it was perceived similar to more commonly consumed teas, while from a sensory point of view, a vegetal and hay flavour were more defining for the product. Full article

(This article belongs to the Section Tea, Coffee, Water, and Other Non-Alcoholic Beverages)

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13 pages, 1221 KiB

Open AccessArticle

Polyphenol Composition of Skin-Contact Fermented ‘Solaris’ and ‘Zilga’ Wines

by Mariana Maante-Kuljus, Kadri Karp, Reelika Rätsep, Leila Mainla, Angela Koort, Priit Põldma, Hedi Kaldmäe and Ulvi Moor

Beverages 2024, 10(3), 59; https://doi.org/10.3390/beverages10030059 - 11 Jul 2024

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Abstract

The objective of the study was to determine the effect of vintage and cultivar on the total polyphenol content and the antioxidant activity of wines made from the white wine cultivar ‘Solaris’ and the red wine cultivar ‘Zilga’ (both with skin maceration). The [...] Read more.

The objective of the study was to determine the effect of vintage and cultivar on the total polyphenol content and the antioxidant activity of wines made from the white wine cultivar ‘Solaris’ and the red wine cultivar ‘Zilga’ (both with skin maceration). The second goal was to describe the polyphenolic profile of ‘Solaris’ wine and compare it with that of ‘Zilga’ wine. Spectrophotometric methods were employed to determine the total polyphenol content and the antioxidant activity. High-performance liquid chromatography (HPLC) was used to determine the polyphenol composition. The total polyphenol content and the antioxidant activity of ‘Solaris’ wine differed significantly from that of ‘Zilga’ wine in the experimental years from 2021 to 2023. Significant differences between the wines also occurred on average over the years, with a significantly higher total polyphenol content and antioxidant activity obtained for the red wine of ‘Zilga’. However, both wines were similarly influenced by vintage over the three-year experimental period. The antioxidant activity showed a high correlation with the total polyphenol content. The polyphenolic profile of ‘Solaris’ wine differed notably from that of ‘Zilga’ wine. While ‘Solaris’ wine exhibited lower levels of phenolic acids and flavonols, the content of the flavanols was significantly higher, even double that of ‘Zilga’ wine. Among the flavanols, there was a remarkably high content of catechin and epicatechin. Full article

(This article belongs to the Section Wine, Spirits and Oenological Products)

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15 pages, 3081 KiB

Open AccessArticle

Macadamia (Macadamia integrifolia) Nut-Based Beverage: Physicochemical Stability and Nutritional and Antioxidant Properties

by Juan Daniel Camacho-Teodocio, Tzayhri Gallardo-Velázquez, Guillermo Osorio-Revilla, Eduardo Castañeda-Pérez, Claudia Velázquez-Contreras, Maribel Cornejo-Mazón and Diana Maylet Hernández-Martínez

Beverages 2024, 10(3), 58; https://doi.org/10.3390/beverages10030058 (registering DOI) - 10 Jul 2024

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Abstract

The present work presents an investigation of the effects of xanthan gum (XG) and soy lecithin (SL) on the physicochemical stability, fatty acid profile (FAP), and antioxidant capacity (AC) of macadamia nut-based beverages with thermal treatment (TT), as well as physicochemical changes during [...] Read more.

The present work presents an investigation of the effects of xanthan gum (XG) and soy lecithin (SL) on the physicochemical stability, fatty acid profile (FAP), and antioxidant capacity (AC) of macadamia nut-based beverages with thermal treatment (TT), as well as physicochemical changes during storage and sensorial acceptability. An extreme vertices mixture design was used, varying the macadamia nut, SL, and XG. The results show that adding XG and SL decreased the Sauter (D[3,2]) and Brouckere (D[4,3]) diameters of particles in macadamia beverages and increased the zeta potential (ZP), which represents greater stability. After applying TT in beverages, D[3,2], D[4,3], and ZP increased. After processing and TT, the FAP and fat nutritional indices changed due to reducing SFA and PUFA and increasing MUFA relative to macadamia nut. No significant difference (p ≥ 0.05) was observed in the FAP of beverages with and without TT. The AC determined by DPPH and ABTS decreased in most beverages upon TT application. During storage for two months, the beverage particle size increased, there was a decrease in brightness, and no significant difference (p ≥ 0.05) was observed in ZP. Sensory analysis showed that the most stable beverage was not the most acceptable due to its viscosity. Full article

(This article belongs to the Section Tea, Coffee, Water, and Other Non-Alcoholic Beverages)

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15 pages, 924 KiB

Open AccessArticle

Sensory Characterization and Acceptance of Amazonian Robustas Coffee Brews by Consumers Using a Home-Use Test

by Thayna Viencz, Claudimara da Silva Portela, Rodrigo Barros Rocha, Enrique Anastácio Alves, André Rostand Ramalho, Rafael Carlos Eloy Dias and Marta de Toledo Benassi

Beverages 2024, 10(3), 57; https://doi.org/10.3390/beverages10030057 - 8 Jul 2024

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Abstract

This study evaluated consumers’ perceptions of beverages obtained from the intervarietal hybrids of Coffea canephora, Conilon and Robusta, produced in the Western Amazon, through a home-use test with 127 participants. An acceptance test and a Check-All-That-Apply procedure were applied. Two clones, BRS [...] Read more.

This study evaluated consumers’ perceptions of beverages obtained from the intervarietal hybrids of Coffea canephora, Conilon and Robusta, produced in the Western Amazon, through a home-use test with 127 participants. An acceptance test and a Check-All-That-Apply procedure were applied. Two clones, BRS 2314 and BRS 2357, were studied (both in natural and fermented versions) and their roasted coffee composition was also evaluated. All beverages were described as having a mild aroma, roasted flavor, and slightly sour taste; consumers noticed both the effect of the fermentation process and genetics. Natural coffees had greater sensory acceptance than fermented ones. Natural coffees were most associated with a slightly bitter taste, and were well accepted by almost half of the participants, mainly women. Fermented coffees were both associated with fermented flavor, but also presented specific characteristics. BRS 2314F was most associated with a fruity flavor and slightly bitter taste and was well accepted by younger consumers with higher levels of education. BRS 2357F was most associated with tobacco flavor and bitter taste and was well accepted by older consumers with a lower education level and a higher coffee consumption frequency. The positive acceptance of C. canephora intervarietal hybrid beverages allowed us to confirm its material market potential. Full article

(This article belongs to the Section Tea, Coffee, Water, and Other Non-Alcoholic Beverages)

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14 pages, 2980 KiB

Open AccessArticle

Optimization of Extraction Parameters to Enhance the Antioxidant Properties of Pyrus spinosa Fruit Extract

by Konstantina Kotsou, Anna Papagiannoula, Theodoros Chatzimitakos, Vassilis Athanasiadis, Eleni Bozinou, Athanassios I. Sfougaris and Stavros I. Lalas

Beverages 2024, 10(3), 56; https://doi.org/10.3390/beverages10030056 - 5 Jul 2024

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Abstract

Pyrus spinosa (PS), also known as wild pear, is an indigenous species to the Mediterranean basin. It has attracted interest for its potential use in the food and beverage industries due to its antioxidant properties. This research aims to develop an antioxidant-rich PS [...] Read more.

Pyrus spinosa (PS), also known as wild pear, is an indigenous species to the Mediterranean basin. It has attracted interest for its potential use in the food and beverage industries due to its antioxidant properties. This research aims to develop an antioxidant-rich PS fruit extract by optimizing the extraction parameters. More specifically, through a comprehensive study of the extraction parameters (including extraction duration, temperature, and ethanol concentration), the optimal conditions were determined that can achieve the highest antioxidant properties. High-Performance Liquid Chromatography (HPLC) was employed for the identification and quantitation of the polyphenolic compounds present in PS fruits. The optimized extraction conditions significantly enhanced the antioxidant properties of the extract, with the total polyphenol content increasing by up to 345% (reaching a value of 50.97 mg gallic acid equivalents per g of dry weight in the optimum sample), total flavonoid content by up to 273%, and ascorbic acid content by up to 653%. Furthermore, the antioxidant capacity of the extracts increased by 2356% (by FRAP method) and 1622% (by the DPPH method), with varying extraction parameters. These findings highlight the importance and the effectiveness of optimizing the extraction parameters in order to increase the antioxidant properties of PS fruit extract. Based on these findings, PS extracts can be further utilized in the food and beverage industries to develop new products that will benefit from the antioxidant properties. Full article

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18 pages, 4222 KiB

Open AccessArticle

Development of a Distilled Beverage Using Yacon Root (Smallanthus sonchifolius)

by Manuel José Marin Arévalo and Nicolás Ratkovich

Beverages 2024, 10(3), 55; https://doi.org/10.3390/beverages10030055 - 4 Jul 2024

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Abstract

Yacon, known for its fructooligosaccharides, fructans, and inulin content, has shown potential for novel beverage production. This study explores the feasibility of creating a distilled yacon-based beverage. Hydrolysis was utilized to release simple sugars from agave and yacon roots; these were then processed [...] Read more.

Yacon, known for its fructooligosaccharides, fructans, and inulin content, has shown potential for novel beverage production. This study explores the feasibility of creating a distilled yacon-based beverage. Hydrolysis was utilized to release simple sugars from agave and yacon roots; these were then processed into three distinct batches of distilled beverage. The different methods led to tests varying the sugar content, yeast strains for fermentation, distillation efficiency, aging processes, and sensory evaluations. The distilled beverages demonstrated varying fermentation yields and distillation efficiencies, with one batch aged in Colombian white oak and the others in glass, highlighting differences in flavor profiles. The study concluded that yacon could serve as a versatile base for alcoholic beverage production. The second batch of the distilled beverage, optimized for fermentation and distillation efficiencies, represented promising advancements in yacon-based alcohol production. Future research should focus on process optimization and commercial viability to expand yacon’s presence in the alcoholic beverage industry. Full article

(This article belongs to the Section Wine, Spirits and Oenological Products)

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19 pages, 3938 KiB

Open AccessArticle

Sugar Replacement in Chocolate-Flavored Milk: Differences in Consumer Segments’ Liking of Sweetener Systems Relate to Temporal Perception

by Glenn Birksø Hjorth Andersen, Caroline Laura Dam Christensen, John C. Castura, Niki Alexi, Derek V. Byrne and Ulla Kidmose

Beverages 2024, 10(3), 54; https://doi.org/10.3390/beverages10030054 - 3 Jul 2024

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Abstract

Chocolate-flavored milk contributes to excessive intake of added sugars among children and adolescents, which why it is a good candidate product for sucrose replacement. This study investigates how replacing sucrose partially or completely with different sweetener systems affects the sensory profile and consumer [...] Read more.

Chocolate-flavored milk contributes to excessive intake of added sugars among children and adolescents, which why it is a good candidate product for sucrose replacement. This study investigates how replacing sucrose partially or completely with different sweetener systems affects the sensory profile and consumer liking. Five chocolate-flavored milk treatments were formulated, varying in sucrose replacement level (partial: 58%; complete: 100%) and sweetener system (synthetic: acesulfame-K; natural: rebaudioside M-erythritol blend). Relative-to-Reference Scaling by a trained panel confirmed that no significant differences in the sensory profile when partial sucrose replacement was compared to sucrose, whereas the complete replacement increased bitter taste, pungent flavor, licorice flavor and mouth-drying. A total of 104 consumers evaluated the treatments for liking and indicated their temporal perceptions with temporal check-all-that-apply. Latent variable clustering performed on liking ratings revealed two clusters, which perceived temporal sensory characteristics differently depending on the sweetener system. Cluster 1 preferred the sucrose control over treatments with complete and partial replacement using a natural sweetener system, with complete replacement being perceived as having off-flavor. Cluster 2 preferred the sucrose control over partial and complete replacement using either of the sweetener replacements investigated, which were characterized as off-flavored and bitter. Understanding these consumer segments enables the food industry to develop effective low-energy formulations using synthetic and natural non-nutritive sweeteners, leading to reduced sugar consumption. Full article

(This article belongs to the Section Beverage Technology Fermentation and Microbiology)

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12 pages, 1900 KiB

Open AccessArticle

Optimization and Validation of Analytical Methodology for Determination of Pesticides in Grape, Must and Wine Samples with QuEChERS Extraction and Gas Chromatography–Mass Spectrometry

by Dionysia L. Sykalia, Epameinondas P. Trantopoulos, Charoula S. Tsoutsi and Triantafyllos A. Albanis

Beverages 2024, 10(3), 53; https://doi.org/10.3390/beverages10030053 - 3 Jul 2024

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Abstract

This study is focused on the optimization and application of an analytical methodology for the determination of 15 selected pesticides in three substrates during the vinification process. QuEChERS extraction was used followed by GC-MS to develop a simple and rapid method for the [...] Read more.

This study is focused on the optimization and application of an analytical methodology for the determination of 15 selected pesticides in three substrates during the vinification process. QuEChERS extraction was used followed by GC-MS to develop a simple and rapid method for the determination of these compounds. The optimized methodology was validated, providing for all selected pesticides excellent linearity, recoveries ranging between 60.9% and 95.0% and LOQs lower than 50 ng g⁻¹ f for all substrates. The developed methodology was tested on real samples of grapes, must and wine obtained from a winery in the Epirus region. The results indicated the existence of some of the selected pesticides at comparatively low levels in contrast to the valid MRLs. Full article

(This article belongs to the Section Wine, Spirits and Oenological Products)

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11 pages, 1698 KiB

Open AccessArticle

Preservation of Malolactic Starters of Lactiplantibacillus plantarum Strains Obtained by Solid-State Fermentation on Apple Pomace

by Marina Edith Navarro, Natalia Soledad Brizuela, Naiquén Elizabeth Flores, Manuel Morales, Liliana Carmen Semorile, Danay Valdes La Hens, Adriana Catalina Caballero, Barbara Mercedes Bravo-Ferrada and Emma Elizabeth Tymczyszyn

Beverages 2024, 10(3), 52; https://doi.org/10.3390/beverages10030052 - 28 Jun 2024

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Abstract

Malolactic fermentation (MLF) is a biological process of deacidification of wines that may also help to increase the microbiological stability of the product and to enhance its sensorial attributes, in particular its aromatic profile. MLF can occur spontaneously due to the presence of [...] Read more.

Malolactic fermentation (MLF) is a biological process of deacidification of wines that may also help to increase the microbiological stability of the product and to enhance its sensorial attributes, in particular its aromatic profile. MLF can occur spontaneously due to the presence of indigenous bacteria in the environment of fermented beverages such as wines and ciders. However, the inoculation of lactic acid bacteria (LAB) starter cultures could prevent potential losses and standardize the process. The industrial-scale production of these starter cultures requires cost-effective, sustainable, and feasible approaches. A possible approach to acquire bacterial biomass, while addressing waste disposal concerns, is the use of by-products from the apple juice industry, such as apple pomace. Moreover, to ensure the long-term viability and activity of starter cultures, appropriate preservation methodologies need to be developed. Thus, the aim of the present study was to evaluate the growth of two Lactiplantibacillus plantarum strains, UNQLp11 and UNQLp155, in supplemented apple pomace and to optimize the preservation conditions. Cultures were either frozen or freeze dried (trehalose (20% m/v) as a protective agent, potassium phosphate buffer (pH 7), and a combination of trehalose and buffer), and then cell viability and malolactic activity were analyzed under wine stress conditions. Notably, the combination of phosphate buffer at pH 7.0 and trehalose emerged as the most effective preservation strategy for freeze drying, exhibiting enhanced viability and malic acid consumption for the two strains evaluated. These findings underscore the inexpensive and sustainable viability of using a semi-solid medium formulated with apple pomace for LAB biomass production and subsequent preservation. Full article

(This article belongs to the Collection Wine and Beverage: Fermentation and Conservation Technologies)

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11 pages, 713 KiB

Open AccessArticle

Witbier Fermented by Sequential Inoculation of Schizosaccharomyces pombe and Saccharomyces cerevisiae: Influence of Starchy Ingredients and S. cerevisiae Strain Used for In-Bottle Refermentation

by Antonietta Baiano, Francesco Grieco and Anna Fiore

Beverages 2024, 10(3), 51; https://doi.org/10.3390/beverages10030051 - 26 Jun 2024

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Abstract

Great attention has recently been dedicated to the use of non-Saccharomyces yeast strains for the development of new beer formulations. However, the effect of the Saccharomyces strain used in the refermentation of this type of beer has never been investigated. The research [...] Read more.

Great attention has recently been dedicated to the use of non-Saccharomyces yeast strains for the development of new beer formulations. However, the effect of the Saccharomyces strain used in the refermentation of this type of beer has never been investigated. The research described aimed to optimize the quality of beers fermented by an oenological Schizosaccharomyces pombe strain alternately combined with two S. cerevisiae strains (WB06, commercial; 9502, of an oenological origin). The influence of both in-bottle refermentation (alternately carried out by one of the two Saccharomyces cerevisiae strains used in the sequential first fermentation) and starchy ingredients (three mixtures of 65% of malted barley alternately combined with 35% of unmalted common, durum, or emmer wheat) was studied. The beer formulation was optimized through a two-factor mixed three- and two-level design, where the two factors were the starchy ingredients and the refermenting S. cerevisiae. Beers from durum wheat beers refermented by WB06 had the highest alcohol contents. Common wheat beers refermented by 9502 showed the highest antioxidant activity values. The highest overall sensory score was assigned to the beers refermented by 9502. The fitted quadratic model had a good predictive ability for five physicochemical and fourteen sensory characteristics, with an R² often higher than 0.9. Full article

(This article belongs to the Special Issue Developments in Brewing Processing and Analytical Techniques for the Evaluation of Beer Quality)

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15 pages, 2012 KiB

Open AccessArticle

Ethnobotany of Zmeyovski pelin: A Traditional Artemisia-Flavored Wine from Bulgaria

by Vanya Boneva, Teodora Ivanova, Neli Grozeva, Mariya Slavcheva and Dessislava Dimitrova

Beverages 2024, 10(3), 50; https://doi.org/10.3390/beverages10030050 - 26 Jun 2024

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Abstract

Flavoring wine with Artemisia species, together with other aromatic herbs and/or fruits, is a practice that has evolved in different parts of Bulgaria. The aromatized wine-based beverage, called pelin, is named after the Bulgarian common name for the genus Artemisia. In [...] Read more.

Flavoring wine with Artemisia species, together with other aromatic herbs and/or fruits, is a practice that has evolved in different parts of Bulgaria. The aromatized wine-based beverage, called pelin, is named after the Bulgarian common name for the genus Artemisia. In this paper, we present Zmeyovski pelin, the history of which dates back to the early 20th century. We employed semi-structured interviews with 15 pelin producers from the Zmeyovo village with an age span from 44 to 83 years. The relative frequency of citation for each stated taxon was recorded. We explored the changes in the plant knowledge of the pelin makers and discussed the drivers for it. From a modern perspective, pelin can be considered a functional beverage since the aromatic plants and fruits adds a variety of biologically active substances to it, thus enhancing its health benefits. We regard the consumers’ inquiry about the benefits of the added plants as a driver for mitigating the plant awareness disparity among the local community. Full article

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35 pages, 7431 KiB

Open AccessReview

Low-Alcohol and Nonalcoholic Wines: From Production to Cardiovascular Health, along with Their Economic Effects

by Paula Silva

Beverages 2024, 10(3), 49; https://doi.org/10.3390/beverages10030049 - 25 Jun 2024

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Abstract

This review aims to create a communication tool for low-alcohol and nonalcoholic wine production, catering to scientists, educators, students, and wine producers in the field. With health concerns regarding alcohol consumption, the need for information on low-alcohol wines is essential. This paper outlines [...] Read more.

This review aims to create a communication tool for low-alcohol and nonalcoholic wine production, catering to scientists, educators, students, and wine producers in the field. With health concerns regarding alcohol consumption, the need for information on low-alcohol wines is essential. This paper outlines the methods for the pre-fermentation (leaf area reduction, early grape harvest, grape must dilution, filtration of grape juice and addition of glucose oxidase), mid-fermentation (employing non-saccharomyces yeasts, using genetically modified yeasts through metabolic engineering, and controlling yeast nutrition), and post-fermentation (nanofiltration and reverse osmosis, osmotic distillation, pervaporation, spinning cone column, vacuum distillation, and multi-stage membrane-based systems) stages and their effects on wine quality. It also presents evidence of the impact of alcoholic, low-alcohol, and nonalcoholic wines on cardiovascular health. Finally, the potential market for low-alcohol and nonalcoholic wines is discussed. Key findings indicate a shift toward low-alcohol alternatives due to health, economic, and social factors and consumer interest in healthier lifestyles. Low-alcohol and nonalcoholic wines offer health benefits, particularly cardiovascular health, presenting an opportunity for winemakers to cater to a health-conscious market. From an economic perspective, the low-alcohol and nonalcoholic wine market is poised to grow and diversify its revenue streams. The development of high-quality low-alcohol and nonalcoholic wines, which can command premium prices, enhances profitability. The changing regulatory landscape in Europe, with a focus on transparency in alcohol labeling and nutritional information, aligns with the new consumer preferences and regulatory standards. Full article

(This article belongs to the Section Wine, Spirits and Oenological Products)

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14 pages, 1197 KiB

Open AccessArticle

Oenological Capabilities of Yeasts Isolated from High-Sugar Matrices (Manna and Honey) as Potential Starters and Co-Starters for Winemaking

by Valentina Craparo, Enrico Viola, Azzurra Vella, Rosario Prestianni, Antonino Pirrone, Vincenzo Naselli, Filippo Amato, Daniele Oliva, Giuseppe Notarbartolo, Raffaele Guzzon, Luca Settanni, Giancarlo Moschetti, Nicola Francesca and Antonio Alfonzo

Beverages 2024, 10(3), 48; https://doi.org/10.3390/beverages10030048 - 21 Jun 2024

Viewed by 509

Abstract

Non-Saccharomyces yeasts have recently garnered significant interest in oenology. When co-inoculated with Saccharomyces cerevisiae, they contribute to the improvement of wine quality from a sensory point of view. In the present study, a group of yeasts previously isolated from manna and [...] Read more.

Non-Saccharomyces yeasts have recently garnered significant interest in oenology. When co-inoculated with Saccharomyces cerevisiae, they contribute to the improvement of wine quality from a sensory point of view. In the present study, a group of yeasts previously isolated from manna and honey by-products were subjected to a genotypic identification. The D1/D2 variable domains of the 26-sRNA gene and the ITS region of the 5.8S gene were sequenced. Additionally, a differentiation of strains was carried out by RAPD-PCR. All strains underwent in vitro screening. Subsequently, a micro-vinification experiment was conducted, focusing on strains with favourable technological characteristics: Lachancea thermotolerans, Starmerella lactis-condensi, and Candida oleophila. These strains were sequentially inoculated alongside a control strain of Saccharomyces cerevisiae. Technological screening revealed that some strains exhibited limited H₂S production, ethanol tolerance (up to 8% v/v), resistance to potassium metabisulphite (200 mg/L), osmotic stress tolerance (up to 320 g/L of glucose), and copper resistance (on average 5 mM). The findings from this study can guide the selection of new starters and co-starters for regional wine production. Full article

(This article belongs to the Section Wine, Spirits and Oenological Products)

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Beverages, Volume 10, Issue 3 (September 2024) – 14 articles

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