乙醇溶剂法非晶颗粒态玉米淀粉酶法水解特性研究  

Research on enzymatic hydrolysis to ethanol's protect non-crystal granular corn starch by α-amylase

作　　者：田景福[1] 张本山[1] 王斌[1] 

机构地区：[1]华南理工大学轻工与食品学院,广州510640

出　　处：《食品科技》2008年第7期37-39,42,共4页Food Science and Technology

基　　金：国家科技支撑计划(2006BAD27B04)

摘　　要：非晶颗粒态淀粉是一种特殊的淀粉物态形式,具有颗粒性,但不具有结晶性。通过非晶颗粒态淀粉的形貌分析可以看出,颗粒内部的结晶结构被破坏而消失,颗粒表面发生了巨大变化呈现出网络状结构,有明显的爆裂孔。以非晶颗粒态淀粉为原料,通过中温α-淀粉酶在常温30℃下实现水解,在同样条件下与原淀粉进行对比,表明非晶颗粒态淀粉的反应活性远远高于原淀粉。探讨了酶量、温度、时间等因素对DE值的影响。Non-crystal granular corn starch is a special starch modality, possessing granule quality but notcrystalline. Through granule surface of analysis on non-crystal granular corn starch, interior crystalline configuration of granule is demolished and disappeared, granule surface happens magnitude transformation, takes on reticulate configuration, exists obvious detonation hole. Using non-crystal granular corn starch as stuff, carries out hydrolysis through a-amylase in condition of 30 ℃. Comparing with corn starch in the same condition, reaction activeness is enhanced infinitly. The factors effect DE value such as quantity of amylase, temperature, time, was studied, activity and it＇s hydrolysis rate of hordein were highier in both of internal malting barley. So the internal barley has potential to make high-quailty malt.

关 键 词：乙醇溶剂法 非晶颗粒态淀粉 酶法水解 DE值 

分 类 号：TS201.2[轻工技术与工程—食品科学]