氧化魔芋葡甘聚糖/Ca(OH)_2杂化膜的制备与性能  

Preparation and Functionality of Oxidize Konjac Glucomannan/Ca(OH)_2 Complex Film

作　　者：董红兵[1] 李斌[2] 谢笔钧[2] 

机构地区：[1]武汉商业服务学院烹饪系,湖北武汉430050 [2]华中农业大学食品科技学院,湖北武汉430070

出　　处：《化学与生物工程》2005年第9期22-24,共3页Chemistry & Bioengineering

基　　金：国家"863"资助项目(2002AA6Z3181)

摘　　要：魔芋葡甘聚糖以H2O2进行氧化,制备得到了氧化魔芋葡甘聚糖颗粒,加入或不加入Ca(OH)2,以传统的流涎法于室温下干燥,分别得到杂化膜及透明薄膜。性能测试表明,由于粘度降低,提高了水溶胶的固含量,增加了杂化膜的耐洗刷性及对Ca(OH)2的荷载能力;断链的同时生成的极性基团,增加了水溶胶的稳定性、膜的断裂伸长率,而膜的耐水性和拉伸强度有所下降。Konjac glucomannan was oxidized by H2O2, so the oxidize konjac glucomannan （O-KGM） could be obtained. The complex film or transparent film was prepared by traditional casting methods and dried at the room temperature with or without the Ca（OH）2 existing. The determination of functionality showed that the scrub resistance and the weight bearing power increased with the increasing of the hydrosol solid content due to the decreasing of the viscosity. The new polar group increased the stability of the O-KGM hydrosol and the tensile strength, however the elongation at break and moisture uptake decreased at the same time.

关 键 词：魔芋葡甘聚糖 氧化 杂化膜 氢氧化钙 

分 类 号：S377[农业科学—农产品加工]