Applied Microbiology and Biotechnology

, Volume 72, Issue 6, pp 1136–1143

Ethanol fermentation from lignocellulosic hydrolysate by a recombinant xylose- and cellooligosaccharide-assimilating yeast strain

Authors

  • Satoshi Katahira
    • Division of Molecular Science, Graduate School of Science and TechnologyKobe University
  • Atsuko Mizuike
    • Department of Chemical Science and Engineering, Faculty of EngineeringKobe University
  • Hideki Fukuda
    • Division of Molecular Science, Graduate School of Science and TechnologyKobe University
    • Department of Chemical Science and Engineering, Faculty of EngineeringKobe University
Biotechnological Products and Process Engineering

DOI: 10.1007/s00253-006-0402-x

Cite this article as:
Katahira, S., Mizuike, A., Fukuda, H. et al. Appl Microbiol Biotechnol (2006) 72: 1136. doi:10.1007/s00253-006-0402-x

Abstract

The sulfuric acid hydrolysate of lignocellulosic biomass, such as wood chips, from the forest industry is an important material for fuel bioethanol production. In this study, we constructed a recombinant yeast strain that can ferment xylose and cellooligosaccharides by integrating genes for the intercellular expressions of xylose reductase and xylitol dehydrogenase from Pichia stipitis, and xylulokinase from Saccharomyces cerevisiae and a gene for displaying β-glucosidase from Aspergillus acleatus on the cell surface. In the fermentation of the sulfuric acid hydrolysate of wood chips, xylose and cellooligosaccharides were completely fermented after 36 h by the recombinant strain, and then about 30 g/l ethanol was produced from 73 g/l total sugar added at the beginning. In this case, the ethanol yield of this recombinant yeast was much higher than that of the control yeast. These results demonstrate that the fermentation of the lignocellulose hydrolysate is performed efficiently by the recombinant Saccharomyces strain with abilities for xylose assimilation and cellooligosaccharide degradation.

Keywords

FermentationYeastXyloseLignocellulosic hydrolysateEthanolCell surface display

Copyright information

© Springer-Verlag 2006