Title:
PROCESS FOR PRODUCING ALCOHOL FROM STARCH
Document Type and Number:
WIPO Patent Application WO/2003/016524
Kind Code:
A1
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 &agr −amylase, to a yeast and growing the resultant yeast using starch as a substrate. Compared with a yeast presenting glucoamylase and &agr −amylase on the cell surface layer, a yeast presenting &agr −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 &agr −amylase originating in Streptococcus bovis makes it possible to produce ethanol directly from uncooked starch (raw starch).
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Inventors:
Fukuda, Hideki (8-13, Syofuudai 1-chome Tarumi-k, Kobe-shi Hyogo, 655-0871, JP)
Kondo, Akihiko (1-2-806, Shinoharaobanoyamacho 1-chome, Nada-k, Kobe-shi Hyogo, 657-0015, JP)
Tanaka, Atsuo (9-7 Kabutodai 7-chome, Kizucho Souraku-gun, Kyoto, 619-0224, JP)
Ueda, Mitsuyoshi (2-47, Isoshi 3-chome Takarazuka-shi, Hyogo, 665-0033, JP)
Satoh, Eiichi (2-17-8, Niiza Niiza-shi, Saitama, 352-0006, JP)
Kondo, Akihiko (1-2-806, Shinoharaobanoyamacho 1-chome, Nada-k, Kobe-shi Hyogo, 657-0015, JP)
Tanaka, Atsuo (9-7 Kabutodai 7-chome, Kizucho Souraku-gun, Kyoto, 619-0224, JP)
Ueda, Mitsuyoshi (2-47, Isoshi 3-chome Takarazuka-shi, Hyogo, 665-0033, JP)
Satoh, Eiichi (2-17-8, Niiza Niiza-shi, Saitama, 352-0006, JP)
Application Number:
PCT/JP2002/001980
Publication Date:
February 27, 2003
Filing Date:
March 04, 2002
Export Citation:
Assignee:
KANSAI CHEMICAL ENGINEERING CO., LTD. (9-7 Minaminanamatsucho 2-chome, Amagasaki-shi, Hyogo, 660-0053, JP)
Fukuda, Hideki (8-13, Syofuudai 1-chome Tarumi-k, Kobe-shi Hyogo, 655-0871, JP)
Kondo, Akihiko (1-2-806, Shinoharaobanoyamacho 1-chome, Nada-k, Kobe-shi Hyogo, 657-0015, JP)
Tanaka, Atsuo (9-7 Kabutodai 7-chome, Kizucho Souraku-gun, Kyoto, 619-0224, JP)
Ueda, Mitsuyoshi (2-47, Isoshi 3-chome Takarazuka-shi, Hyogo, 665-0033, JP)
Satoh, Eiichi (2-17-8, Niiza Niiza-shi, Saitama, 352-0006, JP)
Fukuda, Hideki (8-13, Syofuudai 1-chome Tarumi-k, Kobe-shi Hyogo, 655-0871, JP)
Kondo, Akihiko (1-2-806, Shinoharaobanoyamacho 1-chome, Nada-k, Kobe-shi Hyogo, 657-0015, JP)
Tanaka, Atsuo (9-7 Kabutodai 7-chome, Kizucho Souraku-gun, Kyoto, 619-0224, JP)
Ueda, Mitsuyoshi (2-47, Isoshi 3-chome Takarazuka-shi, Hyogo, 665-0033, JP)
Satoh, Eiichi (2-17-8, Niiza Niiza-shi, Saitama, 352-0006, JP)
International Classes:
C12N1/19; C12N15/81; C12P7/06; C12N1/19; C12N15/81; C12P7/02; (IPC1-7): C12N15/09; C12N1/19; C12P7/06
Attorney, Agent or Firm:
Nanjo, Hiromichi (5th Floor, Okina Bldg. 2-9, Nishitenma 3-chome, Kita-k, Osaka-shi Osaka, 530-0047, JP)
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