Visible light-responsive TiO2-based 2-based hybrid nanofiller reinforced multifunctional chitosan film for effective fruit preservation
文献类型： 外文期刊
第一作者： Ding, Ke
作者： Ding, Ke;Xie, Ying;Xu, Haishan;Xu, Saiqing;Ge, Shuai;Li, Huan;Chang, Xia;Chen, Jiani;Shan, Yang;Ding, Shenghua;Ding, Ke;Xie, Ying;Xu, Haishan;Xu, Saiqing;Ge, Shuai;Li, Huan;Chang, Xia;Chen, Jiani;Shan, Yang;Ding, Shenghua;Wang, Rongrong
作者机构：
关键词： Multifunctional packaging; Chitosan; TiO2-based; Hybrid particle; Visible light-response; Fruit preservation
期刊名称：FOOD CHEMISTRY （ 影响因子：8.5； 五年影响因子：8.2 ）
ISSN： 0308-8146
年卷期： 2024 年 460 卷
页码：
收录情况： SCI
摘要： In this study, we developed a multifunctional chitosan film with visible light-responsive photocatalytic properties by incorporating a novel nanofiller-a nanohybrid particle of poly(tannic acid) (PTA) and TiO2 (TP-NPs). Firstly, the hybridization of TiO2 with PTA not only improved its dispersion but also obtained TP-NPs with smaller band gaps (from 3.11 eV to 1.55 eV) and higher separation efficiency of photogenerated e(-)-h(+) (about 1.5-fold enhancement), thereby producing more reactive oxygen species and enhancing the antibacterial efficacy (compared with TiO2, the antibacterial effect of TP-NPs on Staphylococcus aureus and Escherichia coli was heightened by about 2 times under visible light for 1 h). Secondly, TP-NPs were hydrogen bonded with chitosan, strengthening its mechanical and barrier properties, while imparting exceptional antibacterial efficacy. Moreover, the multifunctional properties enabled the active film to effectively delay the quality deterioration of grapes and kiwifruit. Hence, this study presented a multifunctional active packaging film tailored for fruit preservation.
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