微波处理对葡甘聚糖/壳聚糖复合膜性能的影响  

Effects of Microwave Irradiation on the Properties of Composite Films Made of Chitosan and Konjac Glucomannan

作　　者：吴云辉[1] 冯爱军[2] 曾援[2] 简文杰[1,2] 

机构地区：[1]厦门海洋职业技术学院生物技术系,福建厦门361012 [2]福建农林大学食品科学学院,福州350002

出　　处：《西南大学学报（自然科学版）》2012年第5期113-118,共6页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(30871749;30901004);福建省自然科学基金资助项目(2009J01061);福建省科技计划社会发展重点项目(2008Y0006)

摘　　要：探讨了微波处理条件对葡甘聚糖/壳聚糖复合膜的拉伸强度、断裂伸长率、吸湿量、透湿系数和透光率的影响.结果表明,123 W/g辐照功率的处理使水蒸气透过系数、透氧气系数下降,抗拉强度、断裂伸长率增大;而246W/g和375W/g辐射功率的处理使抗拉强度、水蒸气透过系数、氧气透过系数下降,断裂伸长率增大;微波处理使透光率略有下降,但影响不显著.结论:微波对葡甘聚糖/壳聚糖复合膜的性能具有显著影响.The effects of microwave treatment on the tensile strength, elongation at break, moisture ab sorption, water vapor permeability coefficient and light permeability of chitosan and konjac glucomannan composite films were studied. The results showed that water vapor permeability coefficient and oxygen permeability coefficient decreased, tensile strength and elongation at break increased after 1 min irradiation in the 123w export power per gram film, and light permeability decreased slightly. In contrast, tensile strength, water vapor permeability coefficient and oxygen permeability coefficient decreased lineally in 246 w and 375 w export power per gram film, while elongation at break increased slightly. After the micro- wave treatment, light permeability decreased slightly. In conclusion： the performance of the composite film was greatly affected by microwave.

关 键 词：微波 性能 壳聚糖 葡甘聚糖 复合膜 

分 类 号：TS231[轻工技术与工程—粮食、油脂及植物蛋白工程]