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:
Nov. 13, 2007
Filed:
Nov. 03, 2005
Hiroshi Ueda, Kawasaki, JP;
Kunihiko Toumori, Kawasaki, JP;
Hiroshi Ueda, Kawasaki, JP;
Kunihiko Toumori, Kawasaki, JP;
Ajinomoto Co., Inc., Tokyo, JP;
Abstract
The present invention provides a method for producing L-glutamic acid by fermentation, by culturing in a liquid medium a microorganism that can metabolize a carbon source at a specific pH, and wherein said medium contains a carbon source and L-glutamic acid at a saturation concentration, and wherein said microorganism is able to cause accumulation of an amount of L-glutamic acid in a liquid medium having said pH, wherein said amount exceeds the amount of L-glutamic acid at said saturation concentration when the pH of the medium is controlled so that L-glutamic acid is precipitated, making L-lysine exist in the medium when L-glutaminc acid concentration is lower than the concentration at which natural crystallization of L-glutamic acid occurs, and precipitating the α-form crystals of L-glutamic acid.