Novel procyanidins-loaded chitosan-graft-polyvinyl alcohol film with sustained antibacterial activity for food packaging

被引：63
作者：
Bi, Jingran [1 ,2 ]
Tian, Chuan [1 ,2 ]
Zhang, Gong-Liang [1 ,2 ]
Hao, Hongshun [1 ,2 ]
Hou, Hong-Man [1 ,2 ]
机构：
[1] Dalian Polytech Univ, Sch Food Sci & Technol, 1 Qinggongyuan, Dalian 116034, Liaoning, Peoples R China
[2] Liaoning Key Lab Aquat Proc Qual & Safety, 1 Qinggongyuan, Dalian 116034, Liaoning, Peoples R China
来源：
FOOD CHEMISTRY | 2021年 / 365卷
关键词：
Active food packaging; Chitosan; pH-stable; Antibacterial activity; IN-VITRO; ANTIOXIDANT; PVA;
D O I：
10.1016/j.foodchem.2021.130534
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
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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页数：9
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