芭蕉芋燃料乙醇同步固态糖化发酵技术及其经济可行性  

Fuel ethanol production by simultaneous saccharification and solid state fermentation from Canna edulis Ker & its economic feasibility

作　　者：吴天祥[1] 汤庆莉[1] 朱作华[1] 

机构地区：[1]贵州大学化学工程学院,贵州贵阳550003

出　　处：《现代化工》2008年第S2期31-35,共5页Modern Chemical Industry

基　　金：贵州省农业攻关项目(No.NY20053016);贵州省国际合作重点项目(黔科外G字[2008]700109)

摘　　要：芭蕉芋是一种可选择的酒精发酵原料。为了评价芭蕉芋酒精固态发酵工艺,实验应用Plackett-Burman设计对芭蕉芋固态蒸煮糖化工艺进行研究,进一步确定了酒精固态发酵工艺条件,最后对芭蕉芋固体发酵法生产燃料乙醇进行技术经济可行性分析。结果表明,固态糖化芭蕉芋水解产物DE值达到96.34%。添加30%芭蕉芋秆茎和20%稻壳,固态发酵醅酒精浓度为10.1%(体积分数)。固态同时糖化发酵过程没有可发酵糖的缺失,减少了酒精生产过程时间,节约了能源。发酵过程没有废水排放,酒精产率达到29.4%,技术经济分析说明固态法芭蕉芋燃料乙醇生产可行。Canna edulis Ker is an alternative substrate for ethanol production.The enzymatic hydrolysis conditions were optimized by Plackett-Burman design.Furthermore,technology conditions of solid state ethanol fermentation were investigated and its economic feasibility was analyzed.The results indicated that DE value of 96.34% could be obtained after saccharification 60 h at 60℃.10.1%(v/v) of ethanol concentration can attain when 30% stalk and 20% rice bran was added for ethanol fermentation.No shortage of fermenta...

关 键 词：芭蕉芋 固态糖化发酵 燃料乙醇 PLACKETT-BURMAN设计 

分 类 号：TQ223.122[化学工程—有机化工]