Curcumin and silver nanoparticles loaded antibacterial multifunctional pectin/gelatin films for food packaging applications

文献类型： 外文期刊

第一作者： Li, Shuying

作者： Li, Shuying;Liu, Fangfei;Liu, Xiong;Li, Shuying;Wei, Nan;Wei, Jia;Fang, Chunli;Feng, Ting;Wu, Bin

作者机构：

关键词： Curcumin; Silver nanoparticles; Pectin/gelatin films; Antimicrobial

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）

ISSN： 0141-8130

年卷期： 2024 年 266 卷

页码：

收录情况： SCI

摘要： Renewable biomass -based materials have a huge potential to replace petroleum -based products in food packaging. Herein, pectin/gelatin films loaded with curcumin and silver nanoparticles (AgNPs) are prepared by solution -pouring technology to serve as antimicrobial multifunctional food packaging films. AgNPs and curcumin are found to equally distribute in the films. Fourier transform infrared spectroscopy (FT-IR) reveal the hydrogen bonding and electrostatic interaction among curcumin, AgNPs, pectin and gelatin. The composite films show good antioxidant activity, mechanical performance, hydrophobicity and antibacterial ability. The films of PG - C - A 0.5 showed 99.57 +/- 0.16 % and 100 % inhibition against E. coli and S. aureus , respectively. The films also demonstrate excellent water vapor barrier qualities. In addition, the composite films possess pH -responsive color change behaviors from yellow (pH 3 - 8) to light red (pH 8 - 9) to dark red (pH 11 - 12), which is suitable for monitoring the freshness of shrimp packaging based on pH changes during deterioration process. As sustainable biomass -based materials, the multifunctional composite films are promising in intelligent food packaging applications.

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