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Article

The Effect of Filtration on Physical and Chemical Properties of Osmo-Dehydrated Material

1
Institute of Agricultural Engineering, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 37/41, 51-630 Wroclaw, Poland
2
Department of Fruit, Vegetable and Nutraceutical Plant Technology, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wroclaw, Poland
*
Author to whom correspondence should be addressed.
Academic Editor: Ryszard Amarowicz
Molecules 2020, 25(22), 5412; https://doi.org/10.3390/molecules25225412
Received: 29 October 2020 / Revised: 10 November 2020 / Accepted: 17 November 2020 / Published: 19 November 2020
(This article belongs to the Special Issue Physicochemical Properties of Food)
Osmotic dehydration (OD) performed in concentrated fruit juices used as osmotic solution (OS) comes with some limitations resulting from the material cell structure and is not entirely recognized at the moment. Filtration of the juice could provide some insight into the phenomena occurring throughout the OD. Therefore, the main aim of the study was to recognize the mechanism of selective penetration during OD and evaluate the effect of filtration on physical and chemical properties of osmo-dehydrated material. For this purpose, OD of pumpkin in non-filtrated and filtrated (filters 0.2, 0.45, 0.8, 1.2, 3, 5 and 8 μm) concentrated chokeberry juice was carried out in the study. Moreover, scanning electron microscope (SEM) images were provided. Total phenolic content (TPC) and antioxidant capacity measured by Ferric Reducing Antioxidant Potential (FRAP) and Trolox Equivalent Antioxidant Capacity (TEAC ABTS) of OS and the material were determined. It was found that even though filtration of osmotic solution had a moderate influence on the mass transfer, it greatly affected the chemical composition of dehydrated material. The best option, considering both chemical and physical properties of the dehydrated material, is the use of non-filtrated solution. However, when shorter time of OD is considered, much better results are obtained for filtrated solutions. View Full-Text
Keywords: filtration; bioactivity; antioxidant capacity; SEM; water loss; solid gain filtration; bioactivity; antioxidant capacity; SEM; water loss; solid gain
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MDPI and ACS Style

Masztalerz, K.; Figiel, A.; Michalska-Ciechanowska, A.; Wojdyło, A.; Nowicka, P.; Lech, K. The Effect of Filtration on Physical and Chemical Properties of Osmo-Dehydrated Material. Molecules 2020, 25, 5412. https://doi.org/10.3390/molecules25225412

AMA Style

Masztalerz K, Figiel A, Michalska-Ciechanowska A, Wojdyło A, Nowicka P, Lech K. The Effect of Filtration on Physical and Chemical Properties of Osmo-Dehydrated Material. Molecules. 2020; 25(22):5412. https://doi.org/10.3390/molecules25225412

Chicago/Turabian Style

Masztalerz, Klaudia; Figiel, Adam; Michalska-Ciechanowska, Anna; Wojdyło, Aneta; Nowicka, Paulina; Lech, Krzysztof. 2020. "The Effect of Filtration on Physical and Chemical Properties of Osmo-Dehydrated Material" Molecules 25, no. 22: 5412. https://doi.org/10.3390/molecules25225412

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