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.
Patent No.:
Date of Patent:
Dec. 25, 1979
Filed:
Dec. 29, 1977
Applicant:
Inventors:
Assignee:
Showa Oil Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12D / ;
U.S. Cl.
CPC ...
435144 ; 435924 ;
Abstract
The present invention relates to a microbiological process for the production of citric acid by assimilation of olefins. Normal olefins of C.sub.8-40 produced from thermal cracking of petroleum wax or from polymerization of ethylene are suitable as carbon source for this fermentation process. Said process is carried out by culturing the microorganism selected from the group of Candida tropicalis, Candida intermedia and Candida brumptii, their mutants and their variants in the culture medium containing acid olefins. Citric acid is accumulated in said medium in the process of the culture. The most suitable strain utilized in the present invention is Candida tropicalis, their mutants and their variants.