戊糖和己糖共发酵生产燃料乙醇条件研究  

Studies on conditions of co-ferment hexose and pentose to fuel ethanol

作　　者：宋安东[1] 王风芹[1] 杜风光 耿欣[1] 张百良[3] 

机构地区：[1]河南农业大学生命科学学院 [2]河南天冠集团,南阳473000 [3]农业部农村可再生能源重点开放实验室,郑州450002

出　　处：《生物学杂志》2007年第2期17-20,62,共5页Journal of Biology

基　　金：国家科技部(863)项目(2001AA514020-02);河南省杰出人才创新基金项目(321001300)

摘　　要：利用嗜鞣管囊酵母P-01对木糖和葡萄糖共发酵生产燃料乙醇的条件进行了试验研究,结果表明,木糖和葡萄糖混合液生产燃料乙醇的最佳条件为发酵液的pH值5.5、30℃、摇床转速120 r/min、接种量10%、发酵液初始糖浓度6%、葡萄糖与木糖之比为2、发酵周期为84h。在最佳发酵条件下,发酵醪液中的燃料乙醇浓度为2.101%,糖醇转化率为35%。Conditions of co-ferment hexose and pentose to fuel ethanol by using Pachysolen tannophilus P -01 were studied. The result showed that optimal conditions of converted mixture of xylose and glucose liquid to fuel ethanol as follows： pH5.5,30℃ ,the rotation speed was 120r/min, inoculation amount 10% , initial concentration of total sugar 6% ,the ratio of glucose to xylose was 2 and the fermentation period was 84 hours. The yield of fuel ethanol concentration and the conversation of sugar to ethanol were 2. 101% and 35% respectively under optimal fermentation condition.

关 键 词：木糖 葡萄糖 共发酵 燃料乙醇 

分 类 号：TQ922[轻工技术与工程—发酵工程]