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β-葡萄糖苷酶高温同步糖化发酵产乙醇应用研究
梁翠谊1; 许敬亮1; 袁振宏1; 张宇1; 徐惠娟1; 庄新姝1; 冯胜2
2012
Source Publication化学工程
ISSN1005-9954
Volume040Issue:003Pages:4
Abstract利用Trichoderma sp.W2所产的嗜温耐乙醇β-葡萄糖苷酶及耐高温酵母Kluyveromyces marxianus NCYC 587,以气爆秸秆为原料进行高温同步糖化发酵。研究结果表明:在42℃条件下,接种体积分数10%,底物质量分数15%,发酵pH值为4.8,β-葡萄糖苷酶添加量为30 U/g底物条件下发酵效果最好。NCYC 587能迅速利用预水解产生的葡萄糖发酵并积累乙醇,同时能利用部分木糖,但在发酵后期,葡萄糖利用完全后会代谢利用一定量的乙醇,致使发酵过程中乙醇质量浓度始终维持在一个相对较低的水平。乙醇最高质量浓度达到20.56 g/L,乙醇产率达80.64%。添加嗜温耐乙醇β-葡萄糖苷酶于高温同步糖化发酵能有效解决纤维素酶解发酵过程终端产物抑制的难题。
Language英语
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/20872
Collection中国科学院广州能源研究所
Affiliation1.中国科学院广州能源研究所
2.常州大学
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
梁翠谊,许敬亮,袁振宏,等. β-葡萄糖苷酶高温同步糖化发酵产乙醇应用研究[J]. 化学工程,2012,040(003):4.
APA 梁翠谊.,许敬亮.,袁振宏.,张宇.,徐惠娟.,...&冯胜.(2012).β-葡萄糖苷酶高温同步糖化发酵产乙醇应用研究.化学工程,040(003),4.
MLA 梁翠谊,et al."β-葡萄糖苷酶高温同步糖化发酵产乙醇应用研究".化学工程 040.003(2012):4.
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