The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 20, 1990

Filed:

Dec. 30, 1987
Applicant:
Inventors:

Kazuo Saito, Tokyo, JP;

Hitoshi Shimoi, Tokyo, JP;

Shunichi Sato, Tokyo, JP;

Makoto Tadenuma, Tokyo, JP;

Kiyoshi Yoshizawa, Tokyo, JP;

Kazuhito Moriya, Tokyo, JP;

Chikashi Izumi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12R / ; C12P / ;
U.S. Cl.
CPC ...
435256 ; 435161 ; 435165 ; 4351721 ; 4351722 ; 435255 ; 435942 ;
Abstract

A yeast strain with high power to produce alcohol by fermentation is produced by a method comprising directly conjugating the haploid of the strain No. 909-1 with each tetrad of the ascospores of the strain No. 180 by spore-to-cell mating, acclimating the resultant zygote in the medium of waste after alcohol fermentation, and acclimating the surviving cells of the zygote in the medium of the beet molasses containing 2-deoxyglucose. The yeast strain produced is designated as Strain M-9 (FERM BP 1481) of genus Saccharomyces cerevisiae. Alcohol is produced by culturing the Strain M-9 in a medium of beet molasses.


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