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:
Aug. 02, 1994
Filed:
Sep. 09, 1992
Ajinomoto Co., Inc., Tokyo, JP;
Abstract
The present invention provides a process for producing riboflavin by fermentation, a method for providing microorganisms having an improved riboflavin-producing capability, and strains of microorganisms having improved riboflavin-producing ability. The strains of the present invention belong to the genus Bacillus, have reduced activity of hydrolysing phosphoric acid from 5'-guanylic acid, and have the ability of producing riboflavin. Mutants used in the processes of this invention have an improved ability of producing riboflavin and are capable of producing or accumulating a large amount of riboflavin in the culture medium. The processes of this invention are therefore suitable for producing riboflavin in an effective manner at a low cost.