摘要:
Disclosed is a process for the production of L-threonine or L-isoleucine by fermentation, which comprises culturing in a medium a microorganism belonging to the genus Escherichi a and having a resistance to a purine analogue and the ability to produce L-threonine or L-isoleucine until L-threonine or L-isoleucine is accumulated in the culture, and recovering L-threonine or L-isoleucine therefrom.
摘要:
Disclosed is a process for the production of L-threonine or L-isoleucine by fermentation, which comprises culturing in a medium a microorganism belonging to the genus Escherichi a and having a resistance to a purine analogue and the ability to produce L-threonine or L-isoleucine until L-threonine or L-isoleucine is accumulated in the culture, and recovering L-threonine or L-isoleucine therefrom.