数字农科院2.0

Eco-friendly fabrication of propolis-derived silver nanocomposites on graphene oxide for advanced chitosan-based food packaging

文献类型： 外文期刊

作者： Xiangxin Li;Jun Yang;Hualei Chen;Mohammad Rizwan Khan;Naushad Ahmad;Wenli Tian

作者机构：

关键词： Active food packaging;Controlled release;Nanocomposite immobilization;Propolis-mediated synthesis

期刊名称： Current Research in Food Science

ISSN：

年卷期： 2026 年 12 卷

页码：

收录情况： SCIE（2025版）

摘要： This study presents a sustainable approach for developing multifunctional chitosan (CS) food packaging films by incorporating propolis-mediated silver nanoparticles (AgNPs) anchored onto graphene oxide (GO). The biosynthesized AgNPs (≈51 nm) were uniformly dispersed, and their attachment to GO increased the composite particle size to about 258 nm while enhancing structural stability. GO incorporation strengthened the CS matrix, leading to a 47.62 % improvement in tensile strength and effectively limiting AgNP migration. The CS/GO–AgNP films exhibited strong antibacterial activity (83.25–100 % inhibition) against Escherichia coli ATCC 15597 and Staphylococcus aureus ATCC 12600, enabled by the combined effects of AgNPs and propolis, together with a controlled Ag release (33.42–45.34 %) that supported sustained antimicrobial function. When applied to blueberries, the films reduced weight loss by 43.32 % and surface wrinkling by 49.10 %, helping maintain postharvest quality. Structural characterizations (SEM, FTIR, XRD) further confirmed improved uniformity and interfacial compatibility among CS, AgNPs and GO. Overall, this work provides a practical and environmentally friendly strategy for designing high-performance food packaging materials, offering theoretical support and reference for developing antimicrobial systems with enhanced mechanical stability and reduced nanoparticle migration.

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