Applied Microbiology and Biotechnology

, Volume 25, Issue 3, pp 300–304

Adaptation of Candida shehatae and Pichia stipitis to wood hydrolysates for increased ethanol production

Authors

  • Sarad R. Parekh
    • Department of Chemical Engineering and Applied ChemistryUniversity of Toronto
  • Shiyuan Yu
    • Department of Chemical Engineering and Applied ChemistryUniversity of Toronto
  • Morris Wayman
    • Department of Chemical Engineering and Applied ChemistryUniversity of Toronto
Rapid Communication

DOI: 10.1007/BF00253667

Cite this article as:
Parekh, S.R., Yu, S. & Wayman, M. Appl Microbiol Biotechnol (1986) 25: 300. doi:10.1007/BF00253667

Summary

Candida shehatae ATCC 22984 and Pichia stipitis CBS 5776 were tested for ethanol production from xylose, glucose-xylose mixtures, and aspen wood total hydrolysates. Adaptation of these yeasts to wood hydrolysate solutions by recycling resulted in improved substrate utilization and ethanol production. Compared to the non-adapted cultures, recycled C. shehatae and P. stipitis in aspen hydrolysate increased g ethanol/g sugar consumed from 0.39 and 0.41 to 0.45 and 0.47; while ethanol production from a 70:30 glucose-xylose solution (total sugars 140 g/L) was 45 g/L in 24 h and 60 g/L in 72 h with the adapted yeasts compared to 15 g/L and 28 g/L in the same times with the parent strains.

Copyright information

© Springer-Verlag 1986