L-isoleucine production by ethanol utilizing micro-organism.
Process Biochem. 21: 196-199. 1986.
H. Yukawa and M. Terasawa.

270 micro-organisms isolated from soil by enrichment culture and able to grow on ethanol as the sole source of carbon and energy were screened for their ability to produce L-isoleucine.
A process using a mutant of Brevibacterium flavum resistant to DL-alpha-amino butyrate (alpha-AB) was optimised using ethanol as subsrate and alpha-AB as precursor. This organism did not produce significant quantities of L-leucine or L-valine, thus simplifying L-isoleucine recovery.