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Patent Searching and Data


Title:
デンプンからアルコールを製造する方法
Document Type and Number:
Japanese Patent JP4189317
Kind Code:
B2
Abstract:
An alcohol can be directly and efficiently obtained from starch via fermentation by integrating a plasmid, which is constructed so as to present glucoamylase on the surface layer and secret α−amylase, to a yeast and growing the resultant yeast using starch as a substrate. Compared with a yeast presenting glucoamylase and α−amylase on the cell surface layer, a yeast presenting α−amylase on the cell surface layer and secreting glucoamylase or a yeast presenting glucoamylase on the surface layer, the above−described yeast has an excellent capability of alcohol fermentation and shows an alcohol yield of 40%, i.e., being comparable to alcohol fermentation form glucose. Use of α−amylase originating in Streptococcus bovis makes it possible to produce ethanol directly from uncooked starch (raw starch).

Inventors:
Hideki Fukuda
Akihiko Kondo
Atsushi Tanaka
Mitsuyoshi Ueda
Hidekazu Sato
Application Number:
JP2003521834A
Publication Date:
December 03, 2008
Filing Date:
August 12, 2002
Export Citation:
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Assignee:
Kansai Chemical Machinery Manufacturing Co., Ltd.
International Classes:
C12N1/19; C07K14/39; C12N15/81; C12P7/06; C12N15/09; C12R1/645
Other References:
Journal of Fermentation and Bioengineering,1998年,Vol.86, No.6,p.569-572
Applied Microbiology and Biotechnology,1995年,Vol.42,p.878-883
蛋白質 核酸 酵素,2001年,Vol.46, No.11,p.1480-1487
Yeast,1994年,Vol.10,p.211-225
Applied and Environmental Microbiology,1993年,Vol.59, No.11,p.3669-3673
Attorney, Agent or Firm:
Hiromichi Nanjo