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:
Aug. 18, 1981

Filed:

Jan. 22, 1979
Applicant:
Inventors:

Hideki Fukuda, Kako-gun, Hyogo-ken, JP;

Takeshi Shiotani, Takasago-shi, Hyogo-ken, JP;

Wataru Okada, Takakura-dai, Suma-ku, Kobe-shi, Hyogo-ken, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ;
U.S. Cl.
CPC ...
435255 ; 435256 ; 435800 ; 435804 ; 435813 ; 435940 ;
Abstract

A broth containing yeast cells is continuously or intermittently removed from a fermentor. Then, yeast cells are separated from the filtrate using a cell separator, or further washed with water. Then, the yeast cells so obtained are recycled to the fermentor, whereby yeasts are cultivated at a high cell concentration of from 6% to about 20% based on dry weight. As discussed herein, by removing the filtrate from the cultivation system, there is no accumulation of metabolites and salts prohibiting the cultivation of yeasts, and further the growth of miscellaneous microorganisms which interfere with yeast cell growth, is surprisingly suppressed.


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