摘要
菊芋是一种可选择的酒精发酵原料。研究用菊芋粉生产燃料乙醇的工艺参数,在单因素试验的基础上用正交试验进行工艺参数的优化。确定最佳工艺条件为:料水比为1∶4.5(m/v),复合酶添加量0.2%,发酵温度36℃,酵母液用量为6mL,发酵pH值为5.0,发酵时间24h。在此工艺条件下酒精度可达10.8%vol,酒精产率达34.10%。技术经济分析说明,使用复合酶和酵母发酵菊芋粉生产燃料乙醇是可行的。
Jerusalem artichoke is an alternative source for ethanol production. The technical parameters for fuel ethanol production by jerusalem artichoke powder fermentation were investigated. On the basis of single-factor experiment, orthogonal experiment was conducted to optimize the related technical parameters. The optimized parameters were determined as follows：the ratio of materials to water was 1∶4.5（m/v）,the addition level of compound enzyme was 0.2 %, the fermentation temperature was at 36 ℃,the use level of yeast liquid was 6 mL,the fermentation pH value was 4.5, and the fermentation time was 24 h. Under the above technical conditions, the alcoholicity could reach up to 10.8 %vol, and the yield of ethanol could achieve 34.10 %. The economic analysis showed that fuel ethanol production from jerusalem artichoke powder fermented by compound enzyme and yeast was feasible.
出处
《酿酒科技》
2009年第3期65-68,共4页
Liquor-Making Science & Technology
基金
云南省产业重大关键技术开发专项
云发改高技(20081657)
云南省应用基础研究计划重点项目(2006C0004Z)
关键词
燃料乙醇
复合酶
菊芋粉
正交实验
fuel ethanol
compound enzyme
Jerusalem artichoke powder
orthogonal experiment
