氧化魔芋葡甘聚糖膜的制备与性能研究  

Study on Preparation and Properties of Oxidized Konjac Glucomannan Film

作　　者：王盛莉[1] 兰晶[1] 张艳[1] 张敏燕[1] 汪超[1,2] 倪学文[1] 姜发堂[1,2] 

机构地区：[1]湖北工业大学生物工程学院,武汉430068 [2]武汉力诚生物科技有限公司,武汉430068

出　　处：《食品工业》2009年第5期30-33,共4页The Food Industry

基　　金：武汉市晨光计划(20065004116-52);湖北省教育厅(20063036)

摘　　要：优化了魔芋葡甘聚糖氧化改性的条件,测试了氧化魔芋葡甘聚糖膜的力学、抗潮、阻气性能,用红外光谱、扫描电镜表征了其结构。结果表明最佳成膜条件为:2.4%(V/V)H2O2,50℃反应5h,氧化膜的拉伸强度为15.38MPa,断裂伸长率为18.7%,透湿系数为9.0×10-9g.cm/cm2.s.Pa。氧化魔芋葡甘聚糖膜形成了明显有序的层叠结构。The optimum oxidization conditions of konjac glucomannan were investigated and the fi lm properties of mechanics,moisture resistance and gas barrier were tested.The structure of oxidized konjac glucomannan fi lm was characterized by FT-IR and SEM.The results indicated that the optimal condition were as follow：2.4%（V/ V）H2O2,at 50℃ and 5 h reaction.The tensile strength and elongation rate of OKGM fi lm were 15.38 MPa and 18.7% respectively,and the humidity-penetrate coeffi cient was 9.0×10^-9 g·cm/cm^2·s·Pa. Sequential layer array was observed in cross-section of film of the oxidized konjac glucomannan.

关 键 词：氧化魔芋葡甘聚糖 制备 膜性能 

分 类 号：TB383.2[一般工业技术—材料科学与工程]