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Patent Searching and Data


Title:
METHOD FOR PRODUCING ETHANOL
Document Type and Number:
WIPO Patent Application WO/2013/146540
Kind Code:
A1
Abstract:
Provided is a method for producing ethanol from a lignocellulose biomass at low cost using yeast. The method for producing ethanol from a lignocellulose biomass according to the present invention comprises (1) a step of pretreating the lignocellulose biomass, (2) a step of treating a cellulose fraction obtained in step (1) with a cellulose hydrolase, (3) a step of mixing a glycosylated biomass obtained in step (2) with yeast to perform ethanol fermentation, and (4) a step of separating a fermentation product obtained in step (3) into a solid material and a liquid material, wherein a cycle comprising the above-mentioned steps (1), (2), (3) and (4) is repeated at least two times and yeast obtained in step (4) is used as the whole or a portion of the yeast to be used in step (3) in the next cycle.

Inventors:
NODA HIDEO (JP)
HAMA SHINJI (JP)
KURATANI NOBUYUKI (JP)
KONDO AKIHIKO (JP)
Application Number:
PCT/JP2013/058106
Publication Date:
October 03, 2013
Filing Date:
March 21, 2013
Export Citation:
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Assignee:
KANSAI CHEM ENG (JP)
BIO ENERGY CORP (JP)
International Classes:
C12P7/10; C12N1/19; C12N15/09
Domestic Patent References:
WO2010032762A12010-03-25
Foreign References:
JP2004520058A2004-07-08
JP2007523646A2007-08-23
JP2011041493A2011-03-03
JP2010536389A2010-12-02
JP2011092041A2011-05-12
JP2011152079A2011-08-11
JP2010017084A2010-01-28
Attorney, Agent or Firm:
SHINDO, Takuya et al. (JP)
Takuya Shindo (JP)
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