高吸油率玉米多孔淀粉的制备工艺研究  

A Study on Preparation of Porous Corn Starch with High Oil Adsorbing Rate

作　　者：曹新志[1] 武玉娟[1] 王柱[1] 龚永东[1] 

机构地区：[1]四川理工学院生物工程系,四川自贡643000

出　　处：《粮食与饲料工业》2007年第11期21-22,共2页Cereal & Feed Industry

摘　　要：以玉米淀粉为原料,用酶水解法研究高吸油率玉米多孔淀粉的形成,在研究单因素的基础上,优化了制备玉米多孔淀粉的工艺条件。实验结果表明:在α-淀粉酶、糖化酶之比为1∶3,酶用量1.5%,pH5.0,温度55℃,时间18h的条件下,得到了吸油率较高的多孔淀粉。The formation of porous corn starch with high oil adsorbing rate was prepared from corn starch as raw material by enzymatic hydrolysis method. The technological conditions for preparation of the porous corn starch were optimized based on single factor level. The experimental results showed that the porous starch with higher oil adsorbing rate could be obtained under the conditions of 1：3 weight ratio of α-amylase and glucoamylase, enzyme concentration 1.5% , pH 5.0, temperature 55℃ and time 18 h.

关 键 词：玉米多孔淀粉 吸油率 酶解 淀粉酶 糖化酶 

分 类 号：TS235[轻工技术与工程—粮食、油脂及植物蛋白工程]