LAPSE:2021.0257
Published Article
LAPSE:2021.0257
Wild Strawberry Fragaria vesca L.: Kinetics of Fruit Drying and Quality Characteristics of the Dried Fruits
Andrzej Krzykowski, Dariusz Dziki, Stanisław Rudy, Urszula Gawlik-Dziki, Emilia Janiszewska-Turak, Beata Biernacka
April 27, 2021
The aim of this study was to determine the effect of the temperature of convection and freeze−drying of wild strawberry Fragaria vesca L. fruits on the drying kinetics and on selected quality features of the dried fruits. The process of convection drying was carried out at the temperatures of 25 °C, 40 °C, and 60 °C, whereas freeze−drying was carried out at the temperatures of 20 °C, 40 °C, and 60 °C of the heating shelves and at the pressure of 63 Pa in the lyophilizer chamber. The drying kinetics were best described by the Midilli model for both drying methods. An increase of the drying temperature to 60 °C, for both convection drying and freeze−drying, resulted in a decrease of the total content of phenolic compounds and of the antioxidant activity of the dried fruits. An increase in the temperature of convection drying reduced the lightness of the dried fruits. However, during freeze−drying, these features changed little despite the increase in the drying temperature. The dried fruits with the highest brightness were obtained at a freeze−drying temperature of 60 °C. The method of freeze−drying is proposed as the best because of the resulting color, L-ascorbic acid retention, and antioxidant properties of the dried fruits.
Keywords
antioxidant properties, color changes, drying, L-ascorbic acid changes, wild strawberry
Suggested Citation
Krzykowski A, Dziki D, Rudy S, Gawlik-Dziki U, Janiszewska-Turak E, Biernacka B. Wild Strawberry Fragaria vesca L.: Kinetics of Fruit Drying and Quality Characteristics of the Dried Fruits. (2021). LAPSE:2021.0257
Author Affiliations
Krzykowski A: Department of Thermal Technology and Food Process Engineering, University of Life Sciences in Lublin, 31 Głęboka St., 20-612 Lublin, Poland
Dziki D: Department of Thermal Technology and Food Process Engineering, University of Life Sciences in Lublin, 31 Głęboka St., 20-612 Lublin, Poland [ORCID]
Rudy S: Department of Thermal Technology and Food Process Engineering, University of Life Sciences in Lublin, 31 Głęboka St., 20-612 Lublin, Poland
Gawlik-Dziki U: Department of Biochemistry and Food Chemistry, University of Life Sciences in Lublin, 8 Skromna St., 20-704 Lublin, Poland [ORCID]
Janiszewska-Turak E: Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences (SGGW), Warsaw, Nowoursynowska 159c, 02-776 Warsaw, Poland [ORCID]
Biernacka B: Department of Thermal Technology and Food Process Engineering, University of Life Sciences in Lublin, 31 Głęboka St., 20-612 Lublin, Poland
Journal Name
Processes
Volume
8
Issue
10
Article Number
E1265
Year
2020
Publication Date
2020-10-08
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8101265, Publication Type: Journal Article
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LAPSE:2021.0257
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doi:10.3390/pr8101265
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Apr 27, 2021
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Apr 27, 2021
 
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Apr 27, 2021
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Calvin Tsay
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