基于均匀设计与支持向量回归的木薯生料发酵转化乙醇工艺参数优化  

Optimization of Technical Parameters of Ethanol Fermentation by Uncooked Cassava Based on Uniform Design and Support Vector Regression

作　　者：蔡柳[1] 苏小军[1] 李清明[1,2] 熊兴耀[1,3] 

机构地区：[1]湖南农业大学湖南省作物种质创新与资源利用重点实验室,湖南长沙410128 [2]湖南农业大学食品科技学院,湖南长沙410128 [3]中国农科院蔬菜花卉研究所,北京100081

出　　处：《酿酒科技》2017年第7期52-57,共6页Liquor-Making Science & Technology

基　　金：现代农业产业技术体系建设专项(CARS-12)

摘　　要：以木薯(Manihot esculenta Crantz)为试材,在单因素实验基础上,结合均匀设计(Uniform Design,UD)与支持向量回归(Support Vector Regression,SVR)即UD-SVR法对生料发酵转化乙醇工艺参数进行优化。原料转化率的最佳工艺参数为:料水比1∶3.1,初始pH4,温度36℃,酵母添加量5.5×10~7cell/mL,(NH4)2SO41 g,转速160 r/min,糖化酶添加量110 U/g,淀粉酶添加量10 U/g,纤维素酶添加量25 U/g,发酵周期120 h,原料转化率达到38.63%。On the basis of single factor test coupled with uniform design and support vector regression, the technical parameters in eth- anol production by the fermentation of Manihot esculenta Crantz were optimized as follows： solid-liquid ratio was 1：3.1, initial pH= 4, fermenting temperature was at 36℃, yeast inoculating amount was 5.5×10^7 cell/mL, （NH4）2SO4=1 g, rotating speed=160 r/min, the adding level of glucoamylase, a-amylase and cellulose were 110 U/g, 10 U/g and 25 U/g respectively, and the fermentation cycle was 120 h. As a result, the transmission rate of raw material could reach up to 38.63 %.

关 键 词：木薯 生料发酵 燃料乙醇 均匀设计 支持向量回归 

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]