静态混合器在马铃薯淀粉糖化中的应用研究  

The Application Research of Static Mixer in Potato Starch Saccharification

作　　者：咸强 李晖[1] 

机构地区：[1]南京工业大学生物与制药工程学院,南京210009

出　　处：《食品工业》2015年第6期198-200,共3页The Food Industry

摘　　要：以马铃薯淀粉为原料,以搅拌反应器和静态混合器两种反应器进行酶催化糖化反应。首先通过设计正交试验确定搅拌式糖化反应的最佳条件,即温度65℃,p H 4.2,搅拌转速110 r/min,淀粉浓度40%。再通过试验确定应用静态混合器糖化反应的最佳流速和淀粉浓度。然后对比两种情况下的试验结果。利用搅拌法,在最佳工艺条件下反应2 h,DE值为62.32%,并在第22小时时,DE值达到最高值。而当应用静态混合器后,2 h后DE值则达到67.01%,比前者高7%,在16 h后反应结束,比前者缩短了6 h。结果表明,将静态混合器运用到糖化反应中,能加速糖化反应速率。Using potato starch as raw material,enzymatic saccharification reaction carried out in a stirred tank and static mixer.Firstly,optimum condition of stirring type glycosylation reaction was determined by orthogonal test that the temperature 65 ℃,pH 4.2,stirring speed 110 r/min,starch concentration 40%.Saccharifying reaction application of static mixer with the optimal flow rate and starch concentration was determined,then comparing the two cases of test results.By mixing method,the optimum condition in the reaction of 2 h,DE was 62.32%,and at 22 h,DE reached the highest value.When the application of static mixer,after 2 h DE reached to 67.01%,which was 7%higher than the former.In the end,the reaction after 16 h,was 6 h shorter than the former.The results indicate that the static mixer can accelerate saccharification reaction rate.

关 键 词：静态混合器 搅拌 马铃薯淀粉 糖化 

分 类 号：TS234[轻工技术与工程—粮食、油脂及植物蛋白工程]