橡子淀粉性质及酶解液化条件的优化  

Characteristics and optimization of enzymatic liquefaction in acorn starch

作　　者：程荷芳[1] 卫民[1] 蒋剑春[1] 张宁[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所、生物质化学利用国家重点实验室、国家林业局林产化学工程重点开放性实验室,南京210042

出　　处：《食品科技》2010年第10期102-105,共4页Food Science and Technology

基　　金：引进国际先进林业科学技术创新项目(2006-4-C06)

摘　　要：以橡子仁为原料发酵制取燃料乙醇,对其中的液化条件进行了优化。以橡子淀粉转化率为指标,通过对液化温度、酶用量、液化时间、液固比等进行单因素实验和正交实验,得出其最佳液化条件为:液化温度为70℃、酶用量70U/g橡子、液化时间1h、液固比为7∶1,淀粉转化率达90.4%。The liquefaction of acorn starch to ferment fuel ethanol was optimized. By investigating the yields of glucose, the liquefaction conditions were optimized with single factor and orthogonal tests. The best reaction temperature, enzyme dosage, time and liquid -solid ratio were 70 ℃ , 70 U/g acorn starch, 1 h and 7 ∶1, respectively. Under those conditions, the yield of glucose was 90.4%.

关 键 词：橡子淀粉 淀粉酶 液化 酶解 正交实验 

分 类 号：TS201.2[轻工技术与工程—食品科学]