摘要
对酵母菌M-3进行了葡萄糖和木糖共发酵产乙醇条件的优化研究。结果表明,发酵的最优条件为:pH5,温度34℃,转速70r/min,初始糖浓度60g/L,葡萄糖与木糖的质量比为2∶1。在该条件下,发酵所得燃料乙醇浓度为23.0g/L,糖醇转化率为38.3%。
The co-fermentation conditions of xylose and glucose by yeast M-3 to produce fuel ethanol were studied.The results showed that the optimum conditions were as follows： initial pH value was 6.5 and the temperature was at 34℃, rotating speed was at 70 r/min, initial sugar concentration was 60 g/L, and mass ratio of glucose and xylose was 2：1. Under the above conditions, the produced fuel ethanol concentration was 23.0 g/L and the conversion rate of sugar to ethanol was 38.3 %.
出处
《酿酒科技》
北大核心
2008年第2期49-51,共3页
Liquor-Making Science & Technology
关键词
木糖
葡萄糖
燃料乙醇
发酵
xylose
glucose
fuel ethanol
co-fermentation
