Preparation and antibacterial properties of epsilon-polylysine-containing gelatin/chitosan nanofiber films
文献类型： 外文期刊
作者： Liu, Fang 1 ; Liu, Yini 1 ; Sun, Zhilan 1 ; Wang, Debao 1 ; Wu, Haihong 1 ; Du, Lihui 2 ; Wang, Daoying 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Prod Proc, Nanjing 210014, Peoples R China
2.Nanjing Univ Finance & Econ, Coll Food Sci & Engn, Collaborat Innovat Ctr Modern Grain Circulat & Sa, Key Lab Grains & Oils Qual Control & Proc, Nanjing 210023, Peoples R China
关键词： Chitosan; Gelatin; epsilon-Polylysine; Nanofiber; Pathogen
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：6.953； 五年影响因子：6.737 ）
ISSN： 0141-8130
年卷期： 2020 年 164 卷
页码：
收录情况： SCI
摘要： An effective antibacterial nanofiber film was prepared through the incorporation of epsilon-polylysine (epsilon-PL) into gelatin/chitosan-based polymers. All nanofiber films had uniformly disordered fibrous structure with good diameter distribution. The weight ratio of the gelatin/chitosan/epsilon-PL (G/C/P) influenced the solution property and nanofiber morphology. The addition of epsilon-PL can decrease the viscosity and increase the conductivity of solutions, which lead to a decrease in the diameter of nanofibers. The three polymers of gelatin, chitosan, and epsilon-PL were interacted by hydrogen bonding, and the crystallinity of nanofiber films was decreased by the electrospinning process. The addition of epsilon-PL can enhance the thermal stability, and decrease the water vapor permeability and oxygen permeability of the films, and epsilon-PL did not easily release from the nanofiber films. The G/C/P (6:1:0.125) nanofiber film was more effective to control six foodborne pathogens than the G/C nanofiber films by destroying the bacterial cell membranes. The result indicated that the gelatin/chitosan/epsilon-PL nanofiber films can be used as a food-packaging material to reduce the risk of foodborne pathogens. (C) 2020 Elsevier B.V. All rights reserved.
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