Title:
BIOGAS PRODUCTION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/183110
Kind Code:
A1
Abstract:
[Problem] To generate a biogas from plant biomass such as wood, bamboo, etc., without physical and chemical treatments, which are essential in conventional acid-hydrolysis techniques and enzymatic saccharification techniques, and collect the biogas in a gas state from a solid state. [Solution] In the present invention, an imperfect fungus of the genus Wickerhamomyces is fermented with a carbon source to generate a biogas. In this biogas generation step, the imperfect fungus of the genus Wickerhamomyces is used. The life cycle of the imperfect fungus of the genus Wickerhamomyces is artificially changed between a filamentous fungus/basidiomycete-like life cycle and a yeast-like life cycle. The biogas is generated by repeating steps of: seeding the imperfect fungus of the genus Wickerhamomyces onto the carbon source and controlling culture conditions, thereby producing glucose from cellulose; and generating a biogas such as ethanol, etc., from the glucose. Since the biogas can be collected in a gaseous state directly from the solid carbon source, the cost to collect the component is reduced.
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Inventors:
YONEZAWA YOSHIKUNI (JP)
Application Number:
PCT/JP2016/062383
Publication Date:
October 26, 2017
Filing Date:
April 19, 2016
Export Citation:
Assignee:
YONEKUNI CO (JP)
International Classes:
C12P7/04; C12P7/62
Foreign References:
| JP2010046008A | 2010-03-04 | |||
| JP2016077293A | 2016-05-16 |
Other References:
RUYTERS, S. ET AL.: "Assessing the potential of wild yeasts for bioethanol production.", J. IND. MICROBIOL. BIOTECHNOL., vol. 42, 2015, pages 39 - 48, XP035419065, DOI: doi:10.1007/s10295-014-1544-y
ZHA, Y. ET AL.: "Pichia anomala 29X: a resistant strain for lignocellulosic biomass hydrolysate fermentation", FEMS YEAST RES., vol. 13, no. 7, 2013, pages 609 - 617, XP055602278, DOI: 10.1111/1567-1364.12062
PASSOTH, VOLKMAR ET AL.: "Enhanced ethanol production from wheat straw by integrated storage and pre-treatment (ISP).", ENZYME MICROB. TECHNOL., vol. 52, no. 2, 2013, pages 105 - 110, XP055602283, DOI: 10.1016/j.enzmictec.2012.11.003
ZHA, Y. ET AL.: "Pichia anomala 29X: a resistant strain for lignocellulosic biomass hydrolysate fermentation", FEMS YEAST RES., vol. 13, no. 7, 2013, pages 609 - 617, XP055602278, DOI: 10.1111/1567-1364.12062
PASSOTH, VOLKMAR ET AL.: "Enhanced ethanol production from wheat straw by integrated storage and pre-treatment (ISP).", ENZYME MICROB. TECHNOL., vol. 52, no. 2, 2013, pages 105 - 110, XP055602283, DOI: 10.1016/j.enzmictec.2012.11.003
Attorney, Agent or Firm:
NAGAI,Michiaki (JP)
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