abstract |
(57) The invention provides a method for producing L- lysine by vitamin B 12 fermentation using non-auxotrophic thermophilic Bacillus bacteria. Has A L- lysine-producing ability, vitamin B 12 Non-requiring methanol-assimilating thermophilic Bacillus bacterium, specifically Bacillus methanolicus having L-lysine analog resistance, is cultured in a medium, and L-lysine is produced and accumulated in the culture. By collecting L-lysine, L-lysine is produced. |