Antimicrobial activities of ZnO powder-coated PVC film to inactivate food pathogens

被引：203

作者：

Li, Xihong ^{[1
]}

Xing, Yage ^{[1
]}

Jiang, Yunhong ^{[2
]}

Ding, Yulong ^{[2
]}

Li, Weili ^{[1
]}

机构：

[1] Tianjin Univ Sci & Technol, Key Lab Food Nutr & Safety, Minist Educ, Tianjin 300457, Peoples R China

[2] Univ Leeds, Inst Particle Sci & Engn, Leeds LS2 9JT, W Yorkshire, England

来源：

INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY | 2009年 / 44卷 / 11期

基金：

英国工程与自然科学研究理事会;

关键词：

Antimicrobial agents; packaging materials; poly (vinyl chloride) film; zinc oxide; ANTIBACTERIAL ACTIVITY; ESCHERICHIA-COLI; CERAMIC POWDERS; ZINC-OXIDE; IN-VITRO; NANOPARTICLES; PHOTOCATALYSIS; NANOFLUIDS; COATINGS; BACTERIA;

D O I：

10.1111/j.1365-2621.2009.02055.x

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

P>In this work, the effects of two different amounts of zinc oxide (ZnO) nanoparticles on the antimicrobial activities of poly (vinyl chloride)-based films to inactivate food pathogens were investigated. Results showed that the ZnO-coated film exhibited a good inhibition effect on the growth of Escherichia coli and Staphylococcus aureus and its ability was attributed to the ZnO nanoparticles. The ZnO-coated films exhibited more effective antibacterial activity for S. aureus. However, antifungal activity of the ZnO-coated films (20 mm x 25 mm) against Aspergillus flavus and Penicillium citrinum was not observed. It is likely due to the complexity of the fungal cell wall and the ZnO nanoparticles without UV light irradiated or the insufficient amount of nanoparticles. Our findings reveal that ZnO nanoparticles have a good potential to be coated on a plastic film to make antimicrobial packaging against bacteria such as E. coli and S. aureus.

引用

页码：2161 / 2168

页数：8

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