Improving the techno-functionality of wild almond protein isolate-based films by its hydrolysates and cold plasma treatment

In the present study, composite films (COFI) using wild almond protein isolate (WAPI) and Persian gum (PG) in a ratio of 9:1 and varying amounts (0, 0.15%, 0.30%, and 0.60% (W/V)) of wild almond protein hydrolysate (PH) were developed. The COFI was exposed to atmospheric cold plasma (CP). The physic...

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Main Authors: Zahra Tahsiri, Sara Hedayati, Mehrdad Niakousari
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Food Hydrocolloids for Health
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Online Access:http://www.sciencedirect.com/science/article/pii/S2667025925000056
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author Zahra Tahsiri
Sara Hedayati
Mehrdad Niakousari
author_facet Zahra Tahsiri
Sara Hedayati
Mehrdad Niakousari
author_sort Zahra Tahsiri
collection DOAJ
description In the present study, composite films (COFI) using wild almond protein isolate (WAPI) and Persian gum (PG) in a ratio of 9:1 and varying amounts (0, 0.15%, 0.30%, and 0.60% (W/V)) of wild almond protein hydrolysate (PH) were developed. The COFI was exposed to atmospheric cold plasma (CP). The physicochemical, antioxidant, and antimicrobial characteristics of COFI before and after CP exposure were evaluated. The inclusion of PH did not significantly influence the COFI's moisture content biodegradability; however, the film thickness and film water vapor permeability increased. As the amount of PH in the COFI rose from 0 to 0.60%, the total phenolic content as well as antioxidant activity (determined by the DPPH and ABTS assays) were enhanced. While not being effective against Escherichia coli, the COFI containing PH exhibited inhibitory effects against Staphylococcus aureus. CP treatment improved the COFI in terms of their mechanical attributes without compromising antimicrobial and antioxidant features. Analysis of the FTIR spectra showed detectable enhancements in peak intensity at 1400, 1538, and 1628 cm−1, while micrograph patterns displayed an increase in the coarseness of COFIs, following cold plasma treatment. Overall, the COFIs with 0.60% PH (W/V) treated with cold plasma were the most functionally favorable.
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series Food Hydrocolloids for Health
spelling doaj-art-21da55eb4ba9492bbfe5759e275f8ffe2025-01-27T04:22:29ZengElsevierFood Hydrocolloids for Health2667-02592025-06-017100199Improving the techno-functionality of wild almond protein isolate-based films by its hydrolysates and cold plasma treatmentZahra Tahsiri0Sara Hedayati1Mehrdad Niakousari2Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, , IranNutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, IranDepartment of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, , Iran; Corresponding author.In the present study, composite films (COFI) using wild almond protein isolate (WAPI) and Persian gum (PG) in a ratio of 9:1 and varying amounts (0, 0.15%, 0.30%, and 0.60% (W/V)) of wild almond protein hydrolysate (PH) were developed. The COFI was exposed to atmospheric cold plasma (CP). The physicochemical, antioxidant, and antimicrobial characteristics of COFI before and after CP exposure were evaluated. The inclusion of PH did not significantly influence the COFI's moisture content biodegradability; however, the film thickness and film water vapor permeability increased. As the amount of PH in the COFI rose from 0 to 0.60%, the total phenolic content as well as antioxidant activity (determined by the DPPH and ABTS assays) were enhanced. While not being effective against Escherichia coli, the COFI containing PH exhibited inhibitory effects against Staphylococcus aureus. CP treatment improved the COFI in terms of their mechanical attributes without compromising antimicrobial and antioxidant features. Analysis of the FTIR spectra showed detectable enhancements in peak intensity at 1400, 1538, and 1628 cm−1, while micrograph patterns displayed an increase in the coarseness of COFIs, following cold plasma treatment. Overall, the COFIs with 0.60% PH (W/V) treated with cold plasma were the most functionally favorable.http://www.sciencedirect.com/science/article/pii/S2667025925000056Cold plasmaProtein hydrolysateWild almonds protein isolate
spellingShingle Zahra Tahsiri
Sara Hedayati
Mehrdad Niakousari
Improving the techno-functionality of wild almond protein isolate-based films by its hydrolysates and cold plasma treatment
Food Hydrocolloids for Health
Cold plasma
Protein hydrolysate
Wild almonds protein isolate
title Improving the techno-functionality of wild almond protein isolate-based films by its hydrolysates and cold plasma treatment
title_full Improving the techno-functionality of wild almond protein isolate-based films by its hydrolysates and cold plasma treatment
title_fullStr Improving the techno-functionality of wild almond protein isolate-based films by its hydrolysates and cold plasma treatment
title_full_unstemmed Improving the techno-functionality of wild almond protein isolate-based films by its hydrolysates and cold plasma treatment
title_short Improving the techno-functionality of wild almond protein isolate-based films by its hydrolysates and cold plasma treatment
title_sort improving the techno functionality of wild almond protein isolate based films by its hydrolysates and cold plasma treatment
topic Cold plasma
Protein hydrolysate
Wild almonds protein isolate
url http://www.sciencedirect.com/science/article/pii/S2667025925000056
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AT sarahedayati improvingthetechnofunctionalityofwildalmondproteinisolatebasedfilmsbyitshydrolysatesandcoldplasmatreatment
AT mehrdadniakousari improvingthetechnofunctionalityofwildalmondproteinisolatebasedfilmsbyitshydrolysatesandcoldplasmatreatment