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Title:
METHOD FOR PRODUCING CHEMICAL BY CONTINUOUS FERMENTATION
Document Type and Number:
WIPO Patent Application WO/2012/086720
Kind Code:
A1
Abstract:
Provided is a method for producing a chemical, whereby, in a continuous fermentation device for continuously producing a chemical by fermentation using separation membranes, the separation membranes can be efficiently washed and the fermentation can be stably carried out. The method for producing a chemical by continuous fermentation according to the present invention, which comprises: a fermentation step for converting a starting material to be fermented, through fermentation by culturing a microorganism or cells, into a fermented liquor containing the chemical; and a membrane separation step for collecting the chemical, as a filtrate, from the fermented liquor with the use of two or more separation membrane modules, and returning the non-filtered liquid to the fermented liquor, is characterized in that, in said membrane separation step, the multiple separation membrane modules are intermittently driven in such a manner that a filtration treatment and a filtration-stop treatment are alternately repeated, with controlling the timing of the filtration-stop treatment in each separation membrane module.

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Inventors:
TAKEUCHI NORIHIRO (JP)
CHEON JIHOON (JP)
NISHIDA MAKOTO (JP)
KANAMORI SATOKO (JP)
KOBAYASHI ATSUSHI (JP)
Application Number:
PCT/JP2011/079714
Publication Date:
June 28, 2012
Filing Date:
December 21, 2011
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
TAKEUCHI NORIHIRO (JP)
CHEON JIHOON (JP)
NISHIDA MAKOTO (JP)
KANAMORI SATOKO (JP)
KOBAYASHI ATSUSHI (JP)
International Classes:
C12P1/00; C12P7/56
Foreign References:
JP2009065966A2009-04-02
JP2008161071A2008-07-17
JP2010253357A2010-11-11
JPH026824A1990-01-11
JP2007252367A2007-10-04
JP2008237101A2008-10-09
JP2009065966A2009-04-02
JP2008161071A2008-07-17
JP2009072708A2009-04-09
Other References:
TOSHIHIKO HIRAO ET AL., APPL. MICROBIOL. BIOTECHNOL., vol. 32, 1989, pages 269 - 273
See also references of EP 2657343A4
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
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Claims:



 
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