食品科学2017，Vol.38Issue(15)：58-62,5.DOI:10.7506/spkx1002-6630-201715010
抗菌性玉米醇溶蛋白/壳聚糖复合膜的制备与性质
Preparation and Properties of Antibacterial Zein/Chitosan Composite Film
摘要
Abstract
Zein/chitosan composite films were prepared by casting after addition of zein to chitosan/acetic acid/ethanol mixed systems containing different concentrations of chitosan (CS) in order to improve the mechanical and hydrophilic properties of zein film.The effect of CS concentration on physicochemical properties and antibacterial activity of zein/chitosan composite films was investigated.Results indicated that the viscosity and conductivity of mixed solutions showed step-like changes with increasing CS concentration from 2％ to 8％,and the properties of composite films were markedly affected by addition of CS,leading to an increase in elongation at break from 1.00％ to 6.67％,a reduction in contact angle from 65.97° to 53.61°,and an elevation in water vapor transmission rate from 5.23 to 9.16 g·m/(m2·h·Pa).Scanning electron microscope observation indicated the composite films showed a smooth and homogeneous surface.Furthermore,the composite films possessed potent antibacterial activity against Escherichia coli.关键词
玉米醇溶蛋白/壳聚糖/微观结构/抗菌性Key words
zein/chitosan/microstructure/antibacterial分类
化学化工引用本文复制引用
陈桂芸,曲亮璠,赵宇,陈野..抗菌性玉米醇溶蛋白/壳聚糖复合膜的制备与性质[J].食品科学,2017,38(15):58-62,5.基金项目
国家自然科学基金面上项目(31271974) （31271974）
