食品包装
生物高聚物
抗菌剂
柠檬酸
材料科学
润湿
聚合物
化学工程
核化学
制作
纳米技术
化学
有机化学
复合材料
食品科学
病理
替代医学
工程类
医学
作者
Gomaa El Fawal,Huoyan Hong,Xinran Song,Jinglei Wu,Meiqi Sun,Chuanglong He,Xiumei Mo,Yuxin Jiang,Hongsheng Wang
标识
DOI:10.1016/j.fpsl.2020.100462
摘要
The study aims to prepare antimicrobial films for food packaging using hydroxyethylcellulose (HEC) biopolymer to decrease environmental problems of synthetic polymer. Different ZnO concentrations (0.05, 0.1, and 0.2 %) were incorporated into HEC. The citric acid (CA) was used as a crosslinker for HEC and the casting method was used to prepare HEC/CA and HEC/CA/ZnO films. The prepared films were characterized by FT-IR, XRD, TGA and SEM. Also, mechanical, wettability and antimicrobial properties were examined. The presence of ZnO particles in the films was confirmed by XRD. SEM showed surface morphological differences between HEC/CA and HEC/CA/ZnO films. HEC/CA/ZnO film inhibited the growth of Staphylococcus aureus (91.4 %) and Escherichia coli (61.7 %) bacteria. Consequently, the prepared films consider a promising material for food packaging application.
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