Preparation and characterization of zein-tannic acid nanoparticles/chitosan composite films and application in the preservation of sugar oranges

文献类型： 外文期刊

第一作者： Li, Shuangjian

作者： Li, Shuangjian;Liu, Xiaoli;Zhang, Xiaoqian;Fan, Linlin;Wang, Fan;Zhou, Jianzhong;Zhang, Hongzhi;Liu, Xiaoli;Fan, Linlin;Wang, Fan;Zhou, Jianzhong;Zhang, Hongzhi;Zhang, Hongzhi

作者机构：

关键词： Chitosan film; Nanoparticle; Antibacterial activity; Sugar orange

期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）

ISSN： 0308-8146

年卷期： 2024 年 437 卷

页码：

收录情况： SCI

摘要： Chitosan-based food packaging film was prepared by incorporating zein-tannic acid nanoparticles (ZTNPs) into chitosan and was evaluated in terms of structure, physical, mechanical and functional properties. Results showed that there were hydrogen bonding interactions between ZTNPs and chitosan matrix, which is conductive to mechanical enhancements of chitosan films. Compared with the pure chitosan film, the composite films with 10% ZTNPs at pH 4 showed the increased tensile strength by 196.58%, increased elongation at break by 161.37%, decreased water vapor permeability by 70.76% and decreased oxygen permeability by 40.68%. The highest inhibition rates of this composite film-forming fluid against Escherichia coli and Staphylococcus aureus reached 83.32% and 72.35%, respectively. The composite film forming solution formed by adding 10% ZTNPs was used for sugar orange preservation. The weight loss rate of oranges was reduced and the nutrient retention rate was improved. This study expanded the application of chitosan-based packaging materials in fruit preservation.

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