发明名称 |
Method for the production of a fermentation product from a pretreated lignocellulosic feedstock |
摘要 |
A method for obtaining a fermentation product from a sugar hydrolysate obtained from a feedstock containing hemicellulose, by (i) removing suspended fiber solids from said sugar hydrolysate to obtain a clarified sugar solution; (ii) fermenting xylose in the clarified sugar solution in a fermentation reaction with yeast to produce a fermentation broth comprising the fermentation product; (iii) separating the yeast from the fermentation broth to produce a yeast slurry; (iv) treating the yeast slurry thus obtained with an oxidant to kill microbial contaminants, thereby yielding an oxidant-treated yeast slurry; (v) re-introducing at least a portion of the oxidant-treated yeast back to step (ii) to increase the concentration of yeast in said fermentation reaction; and (vi) recovering the fermentation product.
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申请公布号 |
US8192968(B2) |
申请公布日期 |
2012.06.05 |
申请号 |
US20080199006 |
申请日期 |
2008.08.27 |
申请人 |
EDWARDS JASON B.;MCMILLAN LISA;MUNKVOLD GLENN D.;GEERTMAN JAN-MAARTEN;IOGEN ENERGY CORPORATION |
发明人 |
EDWARDS JASON B.;MCMILLAN LISA;MUNKVOLD GLENN D.;GEERTMAN JAN-MAARTEN |
分类号 |
C12P7/18;C12P7/02;C12P7/06;C12P7/14 |
主分类号 |
C12P7/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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