Grape Seed Extract-Mediated Silver Nanoparticles Incorporated into Chitosan Films for Short-Term Grape Preservation

IF 3 Q2 FOOD SCIENCE & TECHNOLOGY

ACS food science & technology Pub Date : 2026-08-21 Epub Date: 2026-08-03 DOI:10.1021/acsfoodscitech.6c00485

Xiaohua Ma, Xiaoming Chen, Liangfu Zhou, Ruofei Tian, Jingyi Zhou, Yanlin Liu, Xixi Zhao

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Abstract

This study developed chitosan (CS) films incorporating grape seed extract (GSE)-mediated silver nanoparticles (AgNPs) for short-term grape preservation. GSE acted as both a reducing and stabilizing agent during AgNP synthesis and a source of phenolic compounds. The predominantly spherical nanoparticles had a mean primary diameter of 24.38 ± 5.90 nm and a zeta potential of −43.85 ± 3.04 mV. Incorporation of GSE and GSE-AgNPs altered the crystallinity, morphology, optical characteristics, and mechanical and barrier properties of CS films. The composite films also exhibited enhanced antioxidant and antifungal activities compared with neat CS films. During 7 days of storage at 25 ± 2 °C, GSE-AgNP-containing films reduced grape weight loss, decay, and mold growth while better maintaining titratable acidity and sensory quality. The higher GSE-AgNP loading provided the best overall performance, demonstrating the potential of GSE-mediated AgNPs as multifunctional additives in active CS-based packaging.

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葡萄籽提取物介导的银纳米颗粒加入壳聚糖膜用于葡萄短期保鲜

本研究开发了含葡萄籽提取物（GSE）介导的银纳米粒子（AgNPs）的壳聚糖（CS）薄膜，用于葡萄的短期保存。在AgNP合成过程中，GSE既是还原和稳定剂，也是酚类化合物的来源。纳米颗粒主要呈球形，平均初始直径为24.38±5.90 nm， zeta电位为- 43.85±3.04 mV。GSE和GSE- agnps的掺入改变了CS薄膜的结晶度、形貌、光学特性、机械和阻挡性能。与纯CS膜相比，复合膜的抗氧化和抗真菌活性明显增强。在25±2°C下储存7天期间，含gse - agnp的薄膜减少了葡萄的失重、腐烂和霉菌生长，同时更好地保持了可滴定酸度和感官品质。较高的GSE-AgNP负载提供了最佳的综合性能，证明了gse介导的AgNPsas多功能添加剂在活性cs基包装中的潜力。

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

ACS food science & technology

CiteScore

3.30

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0.00%

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