Fabrication of antimicrobial films based on hydroxyethylcellulose and ZnO for food packaging application. (March 2020)

• Record Type: Journal Article
• Authors: El Fawal, Gomaa; Hong, Huoyan; Song, Xinran; Wu, Jinglei; Sun, Meiqi; He, Chuanglong; Mo, Xiumei; Jiang, Yuxin; Wang, Hongsheng
• Is Part Of: Food packaging and shelf life. Volume 23(2020)
• Publication Date: 2020-03
• Subjects: Hydroxyethylcellulose (HEC) -- Zinc oxide -- Food packaging -- Antimicrobial; Food -- Packaging -- Periodicals; Food -- Preservation -- Periodicals; Food -- Packaging; Periodicals; 664.0905
• DOI: 10.1016/j.fpsl.2020.100462
• Languages: English
• ISSNs: 2214-2894

Abstract

Graphical abstract: Highlights: Food packaging films using hydroxyethylcellulose (HEC) and ZnO were prepared. Casting method was applied to prepare HEC/ZnO film. HEC/ZnO film inhibited Staphylococcus aureus and Escherichia coli bacteria growth. Abstract: 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.