Advances in Preservation and Processing of Agricultural Postharvest Products

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Agricultural Product Quality and Safety".

Deadline for manuscript submissions: closed (20 May 2023) | Viewed by 7411

Special Issue Editors


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Guest Editor
Department of Food Production Technologies, Don State Technical University, Rostov-on-Don 344003, Russia
Interests: technology and equipment for preparing feed, feed additives and full-speed feed; systems and complexes of machines for harvesting and processing grain cereal crops; digitalization and mechanization of agricultural equipment as a means of increasing the efficiency of agro-industrial complex enterprises

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Guest Editor
Department of Technologies and Equipment for Processing Agricultural Products, Don State Technical University, Rostov-on-Don 344003, Russia
Interests: systems and complexes of machines for harvesting and processing crops; technologies and equipment for processing agricultural products; study of the properties of various crops as feed additives for farm animals and fish; digitalization in the agro-industrial complex

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Guest Editor
1. The Federal State Budgetary Scientific Institution, Agricultural Research Center "Donskoy", Zernograd 347740, Russia
2. Department of Technologies and Equipment for Processing Agricultural Products, Don State Technical University, Rostov-on-Don 344003, Russia
Interests: study of biophysical effects (including microwave energy) of electromagnetic effects on biological objects of plant origin at the macro- and nanolevels; energy-saving combined processes of drying and micronization of grain materials, disinfection of seeds and technical means for their implementation; technology and equipment for the preparation of compound feed, feed additives and complete feed; mechanized technologies of tillage and harvesting of grain crops

Special Issue Information

Dear Colleagues,

Food security is one of the main goals of the agrarian and economic policy of the state. The sustainability of the food security system is characterized by the level of quality and safety of food, since more than 70% of harmful substances enter the human body with food. In its general form, food security forms the vector of movement of any national food system to an ideal state. In this sense, the pursuit of food security is a continuous process. At the same time, in order to achieve it, there is often a change in development priorities and mechanisms for the implementation of agricultural policy.

Product quality is a set of product properties that determine a product’s suitability to meet certain needs in accordance with the purpose. The most important properties of agricultural products are formed under the influence of some natural objective factors. For example, the accumulation of pesticides, nitrates and heavy metal salts in a product can lead to a complete loss of its consumer properties. Therefore, there is a need for a differentiated assessment of product quality, taking into account the peculiarities of the natural and economic zones of the evaluated countries.

Dr. Dmitry Rudoy
Dr. Anastasiya Olshevskaya
Dr. Viktor Pakhomov
Guest Editors

Manuscript Submission Information

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Keywords

  • food security
  • product quality
  • agriculture
  • safety and health
  • agrarian and economic policy

Published Papers (4 papers)

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Research

28 pages, 3783 KiB  
Article
An Empirical Study on Convective Drying of Ginger Rhizomes Leveraging Environmental Stress Chambers and Linear Heat Conduction Methodology
by Joshua Adeniyi Depiver and Sabuj Mallik
Agriculture 2023, 13(7), 1322; https://doi.org/10.3390/agriculture13071322 - 28 Jun 2023
Cited by 2 | Viewed by 1382
Abstract
This comprehensive study provides an in-depth examination of the convective drying process and drying kinetics of ginger rhizomes (Zingiber officinale), precisely honing in on the influence of moisture content variation on the thermal property of thermal conductivity. Our research reveals a direct correlation [...] Read more.
This comprehensive study provides an in-depth examination of the convective drying process and drying kinetics of ginger rhizomes (Zingiber officinale), precisely honing in on the influence of moisture content variation on the thermal property of thermal conductivity. Our research reveals a direct correlation between decreasing moisture content and thermal conductivity during drying, conducted under meticulously controlled conditions with a drying temperature range of 10 °C to 60 °C and an optimum drying temperature identified at 60 °C with a relative humidity of 35%. We scrutinise the thermal properties, namely, the thermal conductivity, in relation to moisture content, shedding light on the intricate dynamics involved. The study uncovers the distinct advantage of convective drying over traditional methods, shortening the drying time to just 24 h, compared to the nine and eight days required for open sun and solar tunnel drying, respectively. We identified optimal moisture levels for various ginger types: unblanched (6.63%, thermal conductivity 0.0553 W/m·K), blanched (9.04%, thermal conductivity 0.0516 W/m·K), peeled (8.56%, thermal conductivity 0.0483 W/m·K), and unpeeled ginger (5.98%, thermal conductivity 0.0460 W/m·K). As drying progressed, the moisture content fell from 81% to approximately 6–9%, concomitantly lowering the thermal conductivity from roughly 0.0553 W/m·K to around 0.0460–0.0516 W/m·K. These findings offer significant implications for the food industry, proposing improvements in drying processes and strategies for energy conservation when drying ginger rhizomes and similar agricultural produce. Moreover, this study sets a solid foundation for future investigations into potential applications of these insights to other agricultural products and various drying techniques. Full article
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17 pages, 2560 KiB  
Article
Effect of Storage Conditions on Freshness Indexes and Mold Count of Fishmeal
by Jie Geng, Yankai Shao, Wuyingni Li, Shanchen Jiang, Zhiyou Niu and Jing Liu
Agriculture 2023, 13(4), 746; https://doi.org/10.3390/agriculture13040746 - 23 Mar 2023
Cited by 1 | Viewed by 1532
Abstract
To explore the effect of storage conditions on the freshness of fishmeal, the acid value (AV), volatile basic nitrogen (VBN), and pH value were used as freshness evaluation indexes to explore the changes in freshness during storage and the influence of mold count [...] Read more.
To explore the effect of storage conditions on the freshness of fishmeal, the acid value (AV), volatile basic nitrogen (VBN), and pH value were used as freshness evaluation indexes to explore the changes in freshness during storage and the influence of mold count on these indexes. The effects of storage temperature and relative humidity (RH) on AV, VBN, pH value, and mold count were studied using a single-factor test, and grey relation analysis (GRA) was used to assess the association between mold count and freshness indexes. The appropriate storage conditions were determined using the technique for order preference by similarity to ideal solution (TOPSIS) method, which provides theoretical support for fishmeal storage. The results showed that the AV increased during the storage of fishmeal, while the VBN and pH value decreased; the pH value tended to be stable in the later storage stage. The VBN and pH values could not be used as evaluation indexes in the early stage of deterioration. Higher storage temperature was conducive to the storage of fishmeal, but higher RH was not. The results of the GRA showed that the mold count was correlated with each freshness index. The correlation between mold count and VBN was the largest, followed by AV, and the correlation with pH value was the smallest. The TOPSIS method finally determined the suitable storage conditions for fishmeal to be around 25 °C for storage temperature and 60% for RH. The results serve as a future reference for the storage of fishmeal. Full article
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14 pages, 2786 KiB  
Article
Experience in the Cultivation of a New Perennial Cereal Crop—Trititrigia in the Conditions of South of the Rostov Region
by Yuri Lachuga, Besarion Meskhi, Viktor Pakhomov, Yulia Semenikhina, Sergey Kambulov, Dmitry Rudoy and Tatyana Maltseva
Agriculture 2023, 13(3), 605; https://doi.org/10.3390/agriculture13030605 - 1 Mar 2023
Cited by 4 | Viewed by 1442
Abstract
The article presents the research results on the cultivation of a new perennial cereal crop of winter wheat hybrid and wheatgrass—perennial winter wheat (Trititrigia) of the “Pamyati Lyubimovoy” variety (hereinafter—Trititrigia) in the southern zone of the Rostov region over two years. The purpose [...] Read more.
The article presents the research results on the cultivation of a new perennial cereal crop of winter wheat hybrid and wheatgrass—perennial winter wheat (Trititrigia) of the “Pamyati Lyubimovoy” variety (hereinafter—Trititrigia) in the southern zone of the Rostov region over two years. The purpose of the research is to assess the degree of suitability for the use of a new perennial cereal crop—Trititrigia in the southern zone of the Rostov region. The yield, technological indicators of grain, and baking properties of flour were taken as evaluation criteria. The study of all aspects of Trititrigia cultivation was carried out in comparative sowings with winter wheat of the Stanichnaya variety, common in the Rostov region, of the Agricultural Research Center “Donskoy” (ARC Donskoy). As a result of the research, it was found that the average biological yield of Trititrigia in the southern zone of the Rostov region in two years was 4.28 t ha−1, which was 1.57 t ha−1 less than that of the control sowing of winter wheat of the Stanichnaya variety. The weight of the straw part with an ear of Trititrigia is 1.9 times higher than that of winter wheat of the “Stanichnaya” variety. Technological indicators of the quality of Trititrigia grain corresponded to the first class in terms of amount of protein (more than 19%), gluten (33.34%), and falling number (274 s); the third class according to the gluten deformation index (GDI) (81.5 points); the fifth class according to the natural mass of grain (691 g L−1). The general baking evaluation of Trititrigia grain allowed it to be classified as valuable wheat. Full article
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18 pages, 8421 KiB  
Article
Effect of Ultrasonic Pretreatment on Radio Frequency Vacuum Drying Characteristics and Quality of Codonopsis pilosula Slices
by Yuanman Yue, Zepeng Zang, Fangxin Wan, Qian Zhang, Jianwei Shang, Yanrui Xu, Chunhui Jiang, Tongxun Wang and Xiaopeng Huang
Agriculture 2023, 13(1), 72; https://doi.org/10.3390/agriculture13010072 - 26 Dec 2022
Cited by 6 | Viewed by 1696
Abstract
In this paper, the effects of ultrasonic pretreatment on the drying kinetics, bioactive components (polysaccharides, total phenols, total flavonoids and antioxidant), qualitative characteristics (color index, lobetyolin and syringin) and microstructure of Codonopsis pilosula during radio frequency vacuum drying (RFVD) were studied. The average [...] Read more.
In this paper, the effects of ultrasonic pretreatment on the drying kinetics, bioactive components (polysaccharides, total phenols, total flavonoids and antioxidant), qualitative characteristics (color index, lobetyolin and syringin) and microstructure of Codonopsis pilosula during radio frequency vacuum drying (RFVD) were studied. The average drying rate curve showed that the whole drying process could be divided into three stages: accelerating period, constant drying rate period and falling drying rate period. Deff values ranged from 6.61425 to 9.46745 × 10−8. Analysis of the drying rate constants revealed that different conditions of pretreatment were effective in increasing the drying rate. Ultrasonic pretreatment has a positive effect on the retention of polysaccharide content; low frequency favors retention of total phenols, flavonoids and syringin; and with the increase in ultrasonic time and ultrasonic power, the antioxidant capacity was higher than that without ultrasonic treatment. Ultrasonic pretreatment significantly improved color and microstructure. In summary, the pretreatment condition of ultrasonic frequency 20 kHz and power 60 W for 30 min is suitable, which provides a certain reference for the application of ultrasonic pretreatment technology in RFVD of Codonopsis pilosula slices. Full article
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