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:
Jun. 08, 1982
Filed:
Nov. 28, 1980
Applicant:
Inventors:
Assignee:
Nippon Oil Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ;
U.S. Cl.
CPC ...
435118 ; 435830 ;
Abstract
In a process for producing coproporphyrin III which comprises cultivating a coproporphyrin III-producing microorganism of the genus Arthrobacter in a culture medium containing a carbon source, a nitrogen source and a mineral and recovering coproporphyrin III from the culture broth, the improvement wherein the culture medium contains at least 0.1 g, per liter of the culture medium, of L-cystine, at leas 0.5 g, per liter of the culture medium, of Mg.sup.++, or both; and coproporphyrin III-producing microoganisms.