| abstract |
PURPOSE: To prepare a large amount of L-tryptophan inexpensively, by cultivating a bacterium belonging to the genus Brevibacterium, having sulfaguanidine resistance, capable of producing L-tryptophan, in a liquid medium aerobically. n CONSTITUTION: A variant [e.g., Brevibacterium flavum AJ12022 (FERM-P 7034, etc.] belonging to the genus Brevibacterium, capable of producing L-tryptophan, having sulfaguanidine, is aerobically cultivated in a liquid medium usually at 5W 9pH at 20W40°C, L-tryptophan is formed, and collected by a conventional procedure. n COPYRIGHT: (C)1984,JPO&Japio |