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Int J Biol Macromol. 2019 May 1;128:673-680. doi: 10.1016/j.ijbiomac.2019.01.172. Epub 2019 Jan 29.

Cellulose-based peptidopolysaccharides as cationic antimicrobial package films.

Author information

1
Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China. Electronic address: wuyuehan@webmail.hzau.edu.cn.
2
College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China. Electronic address: lq2016@webmail.hzau.edu.cn.
3
College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
4
College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China. Electronic address: yanli@hzau.edu.cn.
5
College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China. Electronic address: libinfood@mail.hzau.edu.cn.
6
Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China. Electronic address: slliu2013@mail.hzau.edu.cn.

Abstract

The antimicrobial nisin peptide was grafted to the 2,3-dialdehyde cellulose through Schiff's base reaction. The obtained peptidopolysaccharide films had the denser microstructure, lower water holding capacity, and increased mechanical properties than the pristine cellulose film. The peptidopolysaccharide films exhibited promising antibacterial activity toward Gram-positive and Gram-negative bacteria, and the ability to induce bacteriostasis of the N-3 peptidopolysaccharide film was four orders of magnitude higher than that of pure cellulose film. In an extended application, the peptidopolysaccharide antibacterial films were used as packaging materials for fresh pork, the results indicated that the peptidopolysaccharide films readily killed the adhered bacteria upon contact, and the N-3 peptidopolysaccharide film extended the shelf-life of the fresh pork at least for six days as compared with polyethylene wrap. Therefore, these peptidopolysaccharides films represent good potential as a green food packaging material.

KEYWORDS:

Antimicrobial; Cellulose; Food packaging; Nisin

PMID:
30708014
DOI:
10.1016/j.ijbiomac.2019.01.172
[Indexed for MEDLINE]

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