Preparation of a multifunctional silver nanoparticles polylactic acid food packaging film using mango peel extract

被引：79

作者：

Cheng, Jun ^{[1
]}

Lin, Xiaotong ^{[1
]}

Wu, Xialing ^{[1
]}

Liu, Qun ^{[1
]}

Wan, Shoumei ^{[1
]}

Zhang, Yucang ^{[1
]}

机构：

[1] Jimei Univ, Coll Food & Biol Engn, Xiamen 361021, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2021年 / 188卷

基金：

中国国家自然科学基金;

关键词：

Mango peel extract; Silver nanoparticles; Polylactic acid; ANTIOXIDANT; PRODUCTS;

D O I：

10.1016/j.ijbiomac.2021.07.161

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

As high-efficiency, safe, and low-drug resistant antibacterial agents, silver nanoparticles (AgNPs) have been widely applied in food and biomedicine. AgNPs was prepared using mango peel extract (MPE) as green and cheap reducing agent and stabilizer. In addition, a novel of preservative film material was developed with polylactic acid (PLA) as protective and substrate. AgNPs was characterized by XPS, XRD and TEM, and the size of AgNPs were in the range of 2.5-6.5 nm. The addition of AgNPs improved the mechanical properties of the film and its barrier ability to water vapor and oxygen. The film exhibited excellent antibacterial properties, and the inhibition rate against Escherichia coli and Staphylococcus aureus were above 95%. Furthermore, in terms of safety, the silver migration and cytotoxicity of the film met the relevant standards, and the shelf life of strawberries was significantly extended.

引用

页码：678 / 688

页数：11

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