摘要
利用响应面对双螺杆挤出酶解复合液化玉米淀粉工艺进行优化,对影响工艺的主要因素(耐高温α-淀粉酶添加量、挤出温度、玉米淀粉浓度和螺杆转速)进行研究。结果表明:当耐高温α-淀粉酶添加量42 U/g、挤出温度142℃、玉米淀粉浓度71%、螺杆转速32 Hz时,玉米淀粉液化挤出物DE值为16.76%,可满足淀粉糖化工艺的要求。
The response surface method was used to optimize the liquefaction process of high concentration corn starch twin-screw extruded enzymolysis.The main factors affecting the liquefaction process were as follows：temperature-resistant α-amylase content,extrusion temperature,corn starch concentration and screw speed the study.The results showed that the DE value of corn starch liquefied extrudate was 16.76% when the α-amylase content was 42 U/g,the temperature was 42 ℃,the temperature was 142 ℃,the corn starch concentration was 71% and the screw speed was 32 Hz,which could meet the requirements of starch saccharification process requirements.
出处
《食品工业》
北大核心
2017年第10期69-71,共3页
The Food Industry
基金
吉林农业科技学院食品科学重点学科培育项目(吉农院合字[2015]第X059号)
关键词
玉米淀粉
挤出
酶解
液化
high concentration corn starch
extrusion
enzymatic hydrolysis
liquefaction
作者简介
通讯作者
通讯作者
