食品工业科技Issue(8)：226-229,335,5.
以机械活化玉米淀粉为原料酶法制备低DE值麦芽糊精
Enzymatic preparation of Low DE maltodextrin using mechanical activated maize starch
摘要
Abstract
Low DE（Dextrose Equivalent）maltodextrins were prepared from mechanical activated maize starch.According to the single factor test,the influences of activation time,reaction time,reaction temperature,starch concentration,amylase dosage and pH on the content of reducing sugar were investigated respectively by using（DE）value.And then,it was optimized by orthogonal experiments.The results showed that activity of starch reaction was significantly increased,the speed of hydrolysis was accelerated,and the time of hydrolysis was shortened after pretreatment by mechanical activation,while the maize starch did not affect the enzyme hardly in the same conditions.The best preparative condition was decided by the orthogonal experiment：enzyme volume was 3u·g-1 starch dry basis,the pH was 6.5,reactive temperature was 45℃,subtractive concentration was 10%,hydrolyzed time was 4min.The DE value of simulation of material under these conditions was 2.35%.Furthermore,the structure of activated starch and of the fat mimetic was further characterized by using FTIR and XRD.关键词
机械活化玉米淀粉/酶法水解/麦芽糊精Key words
mechanical activated maize starch/enzymatic hydrolysis/maltodextrin分类
轻工纺织引用本文复制引用
陈渊,谢祖芳,曾玉凤,韦庆敏,黄祖强,朱雪凤..以机械活化玉米淀粉为原料酶法制备低DE值麦芽糊精[J].食品工业科技,2011,(8):226-229,335,5.基金项目
广西自然科学基金 （）
广西教育厅科研项目 （）
玉林师范学院重点科研项目 （）
