Antimicrobial Properties of Carboxymethyl Cellulose/Starch/N’N Methylenebisacrylamide Membranes Endowed by Ultrasound and Their Potential Application in Antimicrobial Packaging

Author:

Cheng Youliang1,Cheng Xinyi1,Fang Changqing1,Chen Jing1,Zhang Xin1,Cao Changxue1,Wang Jinpeng1

Affiliation:

1. Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China

Abstract

Cellulose is used widely in antimicrobial packaging due to its abundance in nature, biodegradability, renewability, non-toxicity, and low cost. However, how efficiently and rapidly it imparts high antimicrobial activity to cellulose-based packaging materials remains a challenge. In this work, Ag NPs were deposited on the surface of carboxymethyl cellulose/starch/N’N Methylenebisacrylamide film using ultrasonic radiation. Morphology and structure analysis of as-prepared films were conducted, and the antibacterial effects under different ultrasonic times and reductant contents were investigated. These results showed that Ag NPs were distributed uniformly on the film surface under an ultrasonic time of 45 min. The size of Ag NPs changes as the reducing agent content decreases. The composite film demonstrated a slightly better antibacterial effect against E. coli than against S. aureus. Therefore, this work can provide valuable insights for the research on antimicrobial packaging.

Funder

National Key Research and Development Program of China

Central Guidance on Local Science and Technology Development Fund of Shaanxi Province

Key Research and Development Plan of Shaanxi Province

Key Scientific Research Project of Education Department of Shaanxi Province

Key Scientific Research Project of Weinan City

Beilin District Science and Technology Plan Project

Qindu District Science and Technology Plan Project

Publisher

MDPI AG

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