食品科学2021，Vol.42Issue(7)：232-239,8.DOI:10.7506/spkx1002-6630-20200417-226
魔芋葡甘聚糖/壳聚糖复合抗菌食品包装膜的制备及其特性
Fabrication and Characterization of Antimicrobial Food Packaging Materials Composed of Konjac Glucomannan,Chitosan and Fulvic Acid
摘要
Abstract
A konjac glucomannan(KGM)/chitosan(CS)antimicrobial film was prepared by a sol-gel method using fulvic acid as the cross-linking agent.The physical,mechanical,structural and antimicrobial properties of the antimicrobial film was evaluated by rheology,Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),and scanning electron microscope(SEM).Results showed that the introduction of fulvic acid promoted the formation of hydrogen bonds and electrostatic interactions between the functional groups of KGM and those of CS,thereby improving the thermostability and optical properties of the antimicrobial film.Meanwhile,compared with KGM/CS antimicrobial films,the mechanical properties of KGM/CS antimicrobial films added with fulvic acid increased by 16.85 mPa.Water vapor permeability(WVP)of KGM/CS antimicrobial films was 8.65 g/(Pa·s·m)and KGM/CS antimicrobial films added with fulvic acid was 5.25 g/(Pa·s·m).More importantly,the film had good antimicrobial properties and thus could be applied in active food packaging to maintain the quality of foods.关键词
魔芋葡甘聚糖/壳聚糖/富里酸/抗菌性能/活性食品包装Key words
konjac glucomannan/chitosan/fulvic acid/antimicrobial properties/active food packaging分类
轻工纺织引用本文复制引用
陈晓涵,庞杰,吴春华..魔芋葡甘聚糖/壳聚糖复合抗菌食品包装膜的制备及其特性[J].食品科学,2021,42(7):232-239,8.基金项目
国家自然科学基金面上项目(31772045) （31772045）
