壳聚糖
聚乙烯醇
抗菌活性
化学
活性包装
食品包装
共聚物
抗菌剂
水解
材料科学
化学工程
食品科学
聚合物
细菌
有机化学
工程类
生物
遗传学
作者
Jingran Bi,Chuan Tian,Gongliang Zhang,Hongshun Hao,Hongman Hou
出处
期刊:Food Chemistry
[Elsevier]
日期:2021-12-01
卷期号:365: 130534-130534
被引量:47
标识
DOI:10.1016/j.foodchem.2021.130534
摘要
Active food packaging materials containing procyanidins (PC) exhibits outstanding antimicrobial activity, but PC is easy to be hydrolyzed by acid. A novel water-soluble chitosan (CS)-based copolymer was prepared to be used as a carrier to provide a pH-stable environment for loading PC. CS was copolymerized with polyvinyl alcohol (PVA) via a coupling reagent-mediated approach. The CS-graft-PVA film exhibited a desirable PC encapsulation efficiency of over 95% and excellent long-term release sustainability, which was better than the conventional CS and CS-blend-PVA films. Moreover, CS-graft-PVA film had satisfactory mechanical properties and barrier properties, as well possessed a desirable antibacterial activity and biofilm inhibition against foodborne pathogenic microbes and spoilage bacteria. The film was also applied in the salmon muscle perseveration and showed a potential ability to prevent microorganism contamination and texture deterioration in 10 days. These results suggested that the CS-graft-PVA film has an excellent promise for future food packaging applications.
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