2,3-Butanediol production from xylose and other hemicellulosic components byBacillus polymyxa

✍ Scribed by V. M. Laube; D. Groleau; S. M. Martin

• Publisher: Springer Netherlands
• Year: 1984
• Tongue: English
• Weight: 354 KB
• Volume: 6
• Category: Article
• ISSN: 0141-5492
• DOI: 10.1007/bf00140047

✦ Synopsis

In the xylose fermentation of Bacillus polymyxa strain 9035, best 2,3-butanediol yields were obtained with 1.0% yeast extract, 4-6% xylose, shaking at 125 rpm and incubation at 30°C. Under these conditions, mannose, galactose, L-arabinose, cellobiose, starch and glucose were readily metabolized and yielded significant amounts of diol.

Diol production from xylan was also demonstrated.

In addition, the screening of a number of B___tpolymyxa strains on xylose revealed that only strains 9031-1 and 9035 used xyiose extensively and produced significant amounts of diol.

The latter strain proved best under scaled-up conditions.