一种酒精复合酶在燃料乙醇发酵中的应用效果  

Application of an Ethanol Compound Enzyme in the Fermentation of Fuel Ethanol

作　　者：黄玉涛[1] 邹婷婷[1] 吴娟[1] 黄丽丽[1] 孙沛勇[1] 刘钺[1] 

机构地区：[1]河南天冠企业集团有限公司车用生物燃料技术国家重点实验室,河南南阳473000

出　　处：《酿酒科技》2016年第10期67-70,共4页Liquor-Making Science & Technology

摘　　要：考察了酒精复合酶KDN401在木薯粉、玉米粉和混合原料(70%小麦面浆加30%玉米)3种底物中的降残糖效果,并运用Mood中位数检验对发酵结果进行统计分析,结果表明,木薯原料乙醇发酵过程中添加酒精复合酶KDN401,对降低残糖、提高酒精度效果不显著(P<0.05),而玉米粉和混合原料乙醇发酵过程中,添加酒精复合酶KDN401,其降糖和提高酒精度均显著(P<0.05)。对于柔性燃料乙醇企业来说,灵活选择添加酒精复合酶,能够提高发酵质量,降低成本,从而提高企业效益。In this study, the residual sugar degradation effects of alcohol compound enzyme KDN401 in three kinds of substrate （cassava flour,corn flour and mixed raw materials：70 % wheat flour paste and 30 % corn） were investigated. And statistical analysis of the fermentation resultswas performed by Mood median test. The results showed that, the addition of KDN401 in the fermentation of ethanol by cassava flour had nosignificant effects in reducing residual sugar and increasing alcohol content （P 〈 0.05）, however, the addition of KDN401 in the fermentation ofethanol by corn flour/mixed raw materials had significant effects in reducing residual sugar and increasing alcohol content （P〈0.05）. There-fore, the selective addition of ethanol compound enzyme could improve fermentation quality, reduce costs, and increase the benefits for the fuelethanol enterprise.

关 键 词：酒精复合酶 底物 降残糖 Mood中位数检验 

分 类 号：TQ223.122[化学工程—有机化工] TQ920.6[轻工技术与工程—发酵工程]