二次通用旋转组合设计优化玉米高麦芽糖浆液化条件  

Study on the Optimization of Liquefaction Condition in the High Maltose Serosity Producing Technology from Corn Starch by Quadri-uniform-precision Rotatable Central

作　　者：林松毅[1] 赵宇星[1] 邵淑娟[1] 魏巍[1] 刘静波[1] 

机构地区：[1]吉林大学军需科技学院营养与功能食品研究室,长春130062

出　　处：《食品工业》2010年第2期62-66,共5页The Food Industry

基　　金：吉林省科技厅农业重点项目(20070201)

摘　　要：以玉米淀粉为原料,采用耐高温α-淀粉酶为关键液化酶,以液化DE值和折光率为研究对象,考察底物浓度、加酶量、液化时间、液化温度、无水氯化钙用量以及pH值对液化DE值和折光率的影响,通过二次通用旋转组合设计,优化出玉米淀粉制备高麦芽糖浆的最佳液化条件。结果表明:在加酶量7.544μ/g、液化温度77.2℃、液化时间10.8min的条件下,玉米液化液DE值的理论预测值为6.76。In the study, corn starch was taked as a raw material, and the beared high temperature a-amylase was used as the chief liquefying amylase, the liquification DE value and the refractive index was the object of the study, then discussed the effect of the concentration of substrate, the adding dosage of amylase, the liquification time, liquification temperature, the dosage of anhydrous calcium chloride and the pH value, through the uniform- precision rotatable central composition design obtained the optimum liquification condition. The results indicated finally the best technological parameters were： the adding dosage of amylase 7.544 la/g, liquification temperature 77.2qC, liquification time 10.8 min, and on the optimum condition, the theory predicted DE value was 6.76.

关 键 词：玉米淀粉 高麦芽糖浆 液化 二次通用旋转组合设计 

分 类 号：TS245[轻工技术与工程—制糖工程]