Improvement of the properties of essential oil-starch film with whey protein isolated fibril and sodium caseinate

IF 5.6 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products Pub Date : 2024-11-09 DOI:10.1016/j.indcrop.2024.119975

Qianwen Yang , Furun Zheng , Yue Cheng , Ruoxuan Xu , Chao Yuan , Zhengzong Wu , Die Dong , Haibo Zhao , Katsuyoshi Nishinari , Meng Zhao , Bo Cui

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Abstract

Essential oil-starch films are important bioactive films, but their properties are not good enough and need improved. In this work, sodium caseinate (CAS) was utilized to improve the distribution and release of Cinnamon essential oils (CEO), and whey protein isolate fibril (WPIF) of different loadings (0 %, 4 %, 8 % and 12 %, w/w) in starch basis was added to enhance the mechanical properties of starch films. Physical, mechanical, thermal, structural, antibacterial properties, and essential oil release in the films were investigated. CAS-CEO nanoemulsion (190.7±9.4 nm) promoted the compatibility between starch and WPIF. The addition of CAS-CEO nanoemulsion and WPIF synergistically enhanced the tensile strength, stiffness, crystallinity and antibacterial effects, reduced the water vapor permeability of films, and especially delayed the release of essential oil from the films. The starch film composited with CAS-CEO nanoemulsion and appropriate loading of WPIF (8 %) significantly improved the film properties, but the addition of 12 % WPIF disrupted the properties, which might be attributed to the excessive aggregation of WPIF. The work provided useful information for improving the properties of CEO films via adding the emulsifier of CAS and the texture booster of WPIF, which could help to improve the film properties containing oil-soluble bioactive agents.

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用分离乳清蛋白纤维和酪蛋白酸钠改善精油-淀粉薄膜的性能

精油-淀粉薄膜是一种重要的生物活性薄膜，但其性能还不够好，需要加以改进。在这项研究中，利用酪蛋白酸钠（CAS）来改善肉桂精油（CEO）的分布和释放，并在淀粉基础上添加不同负载量（0 %、4 %、8 % 和 12 %，w/w）的乳清蛋白分离纤维（WPIF）来提高淀粉薄膜的机械性能。研究了薄膜的物理、机械、热、结构、抗菌性能和精油释放情况。CAS-CEO 纳米乳液（190.7±9.4 nm）促进了淀粉与 WPIF 的相容性。CAS-CEO 纳米乳液和 WPIF 的加入协同增强了薄膜的拉伸强度、挺度、结晶度和抗菌效果，降低了薄膜的水蒸气渗透性，尤其是延缓了精油从薄膜中的释放。用 CAS-CEO 纳米乳液和适当添加的 WPIF（8%）复合而成的淀粉膜明显改善了薄膜的性能，但添加 12% 的 WPIF 则破坏了薄膜的性能，这可能是由于 WPIF 过度聚集造成的。这项研究为通过添加 CAS 的乳化剂和 WPIF 的质构促进剂来改善 CEO 薄膜的性能提供了有用的信息，有助于改善含有油溶性生物活性剂的薄膜性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Industrial Crops and Products 农林科学-农业工程

CiteScore

9.50

自引率

8.50%

发文量

1518

审稿时长

43 days

期刊介绍： Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.