Thermotolerant Bacillus licheniformis TY7 produces optically active l-lactic acid from kitchen refuse under open condition.
A thermotolerant l-lactic-acid-producing bacterium was isolated and identified as Bacillus licheniformis TY7. TY7 shows optimum growth at pH 6.5 at 30 degrees C and normal growth up to 65 degrees C. Using nonsterile kitchen refuse at 50 degrees C, the strain produced 40 g/ll-lactic acid with 97% optical activity and 2.5 g/lxh productivity.
Sakai
Kenji
K
Department of Applied Chemistry, Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan. sakai@cc.oita-u.ac.jp
Yamanami
Tetsuya
T
D001407:Bacillus / Q000378:metabolism*; D001673:Biodegradation, Environmental; D005285:Fermentation; D005735:Garbage; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D019344:Lactic Acid / Q000096:biosynthesis* / Q000737:chemistry; D012037:Refuse Disposal / Q000379:methods; D013696:Temperature; D013997:Time Factors
D019344:Lactic Acid