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:
Jan. 29, 2002
Filed:
Feb. 28, 2000
Seiji Nishikawa, Saitama, JP;
Tohru Tanaka, Saitama, JP;
Tomomi Kaminaga, Saitama, JP;
Kikuo Watanabe, late of Saitama, JP;
Nobuya Miyachi, Saitama, JP;
Keitaro Watanabe, Saitama, JP;
Yasushi Hotta, Saitama, JP;
Other;
Abstract
Microorganisms producing 5-aminolevulinic acid which show a 5-aminolevulinic acid synthetase activity of 2 to 7 (nmol/min/mg protein) under aerobic culture conditions with a dissolved oxygen concentration of 0.70 to 6.60 ppm; a process for producing 5-aminolevulinic acid characterized by culturing one or more microorganisms and harvesting 5-aminolevulinic acid from the obtained culture; a process for producing 5-aminolevulinic acid characterized by culturing 5-aminolevulinic acid-producing microorganisms in a medium containing 5 to 500 &mgr;M of iron components; and a method for culturing 5-aminolevulinic acid-producing microorganisms.