Patent ID: 9357795
Filing Date: 2016-06-07
CPC Classification: A23L,C12P

Claim Text:
1. A method for producing a flavoring containing L-glutamic acid, the method comprising: culturing an L-glutamic acid-producing microorganism in a medium containing a carbon source, a nitrogen source and a pH modifier, wherein in the culturing, initially ammonia is used as the nitrogen source as well as the pH modifier and subsequently ammonia is replaced with a pH modifier other than ammonia along with additional ammonium sulfate supplemented as a separate nitrogen source within 10-20 hours after starting the culturing such that the content of ammonia remaining in a final fermentation broth is 0 to 10 g/L; after culturing, removing microorganism sludge from the final fermentation broth to yield a fermentation liquor; and drying the fermentation liquor from which the microorganism sludge is removed.