Bioconversion of Cassava Starch to Ethanol in a Simultaneous Saccharification and Fermentation Process by Co-Cultures of Aspergillus niger and Saccharomyces cerevisiae

被引:0
|
作者
Ado, S. A. [1 ]
Olukotun, G. B. [1 ]
Ameh, J. B. [1 ]
Yabaya, A. [2 ]
机构
[1] Ahmadu Bello Univ, Dept Microbiol, Zaria, Nigeria
[2] Kaduna State Univ, Dept Microbiol, Kaduna, Nigeria
来源
关键词
A; niger; S; cerevisiae; Fermentation; Ethanol; Cell dry weight; Residual sugar;
D O I
暂无
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Ethanol production by co-cultures of A. niger (GS4) and S. cerevisiae (BK6) was studied using cassava starch as substrate. At 1% substrate concentration ethanol yield was 0.35g/100ml while the ethanol concentration increased to a maximum of 3.60g/100m1 at 8% substrate concentration. When the culture conditions were optimized, the ethanol yield further increased to 4.30g/100ml at a temperature of 35 degrees C, pH 5.0, 300rpm agitation rate and reduced fermentation period of 4 days.
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收藏
页码:55 / 61
页数:7
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