Conversion of D-xylose to ethanol by the yeast Pachysolen tannophilus

✍ Scribed by P. J. Slininger; R. J. Bothast; J. E. Van Cauwenberge; C. P. Kurtzman

• Publisher: John Wiley and Sons
• Year: 1982
• Tongue: English
• Weight: 584 KB
• Volume: 24
• Category: Article
• ISSN: 0006-3592
• DOI: 10.1002/bit.260240210

✦ Synopsis

Abstract

The yeast Pachysolen tannophilus was found to be capable of converting D‐xylose to ethanol. Batch cultures initially containing 50 g/L D‐xylose yielded 0.34 g of ethanol per gram of pentose consumed. Aerobic conditions were required for cell growth but not for ethanol production. Both alcohol formation and growth were optimum when incubation temperature was 32°C, when pH was near 2.5, and when D‐xylose and ethanol concentrations did not exceed 50 and 20 g/L, respectively.