Process for production of l-phenylalanine by fermentation

Abstract From the Canadian patent

A process for producing L-phenylalanine which, comprises (1) culturing in a culture medium a microorganism having L-phenylalanine productivity wherein, the microorganism is obtained by incorporating a gene connected with a vector plasmid capable of replicating in cells of a Coryneform glutamic acid-producing bacterium into a recipient bacterium selected from Coryneform glutamic acid-producing bacteria and mutants thereof, wherein the gene when introduced into a mutant induced from a Coryneform glutamic acid-producing bacterium and having auxotrophy for L-phenylalanine is capable of eliminating the auxotrophy of the mutant for L-phenylalanine, and (2) harvesting L-phenylalanine accumulated …