AN ACETOIN HIGH YIELD BACILLUS PUMILUS STRAIN

摘要

A high-yield bacterial strain for producing acetoin named Bacillus pumilus XH195 has been deposited in a microorganism deposit center in Germany. The deposit number is DSM 16187. The strain is rod-shaped, 1.5 µm to 3.0 µm in length and 0.6 µm to 0.7 µm in diameter. The colony color of the bacterial strain is yellow or white. The strain has the typical fatty acid profile of Bacillus and its physiological and biochemical characteristics are in alignment with those of Bacillus pumilus. When this strain was cultured at 37°C for 60 hours with shaking, the yield of acetoin could reach 63.0 g/L or 58.1 g/L, respectively, when glucose or sucrose was used as the substrate.