Silver nanoparticle-functionalized covalent organic frameworks for the inhibition of foodborne pathogenic bacteria and their application in green grape preservation

被引：0

作者：

Zhou, Jiayi ^{[1
]}

Zhang, Sai ^{[2
]}

Zhang, Yu ^{[1
]}

Liu, Tianliang ^{[3
]}

Yang, Shuying ^{[1
]}

Lv, Gaopeng ^{[3
]}

Wang, Yaping ^{[1
]}

Feng, Kewei ^{[1
]}

Yuan, Yahong ^{[1
]}

Yue, Tianli ^{[1
]}

Sheng, Qinglin ^{[1
]}

机构：

[1] Northwest Univ, Coll Food Sci & Technol, Res Ctr Food Safety Risk Assessment & Control, Lab Nutr & Hlth Food Individuat Mfg Engn, Xian 710069, Shaanxi, Peoples R China

[2] Shaanxi Univ Chinese Med, Key Lab Shaanxi Adm Tradit Chinese Med TCM Compati, Xian 712046, Peoples R China

[3] Xian Ice Peak Beverage Co Ltd, Xian 710043, Shaanxi, Peoples R China

来源：

FOOD CHEMISTRY | 2025年 / 463卷

基金：

中国国家自然科学基金;

关键词：

COFs; Silver nanoparticles; Foodborne pathogens; Antibacterial activity; Green grapes; CHITOSAN FILMS; NANOCOMPOSITE; FOOD;

D O I：

10.1016/j.foodchem.2024.141310

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Foodborne pathogens continue to pose a significant threat to human health. This study aims to enhance the antimicrobial activity of low-dose silver nanoparticles (AgNPs) against foodborne pathogens and use the enhanced AgNPs to preserve green grapes. A chemical delivery carrier for covalent organic frameworks (COFs) impregnated with AgNPs was developed. We investigated the bacteriostatic properties (minimum bacteriostatic concentration, bacteriostatic growth curve), the mechanism of action of the bacteriostatic agent, and the performance of the bacteriostatic film. The bacteriostatic preservation rate of the AgNPs@COFs composite on green grapes was evaluated. The minimum bacteriostatic concentration of the AgNPs@COFs composite was 10 mu g/mL, and the bacteriostatic rate varied between 94.01 % and 98.77 %. The developed antibacterial AgNPs@COFs composite has potential applications in food packaging and preservation.

引用

页数：11

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