Bioconversion Of Cassava Starch To Ethanol In A Simultaneous Saccharification And Fermentation Process By Co-cultures Of <i>Aspergillus niger</i> And <i>Saccharomyces cerevisiae</i>.

Authors

  • Ado S. A. Department of Microbiology, Ahmadu Bello University, Zaria
  • Olukotun G. B. Department of Microbiology, Ahmadu Bello University, Zaria
  • Ameh J. B. Department of Microbiology, Ahmadu Bello University, Zaria
  • Yabaya A. Department of Microbiology, Kaduna State University

Abstract

Ethanol production by co-cultures of A. niger (GS4) and S. cerevisiae (BK6) was studied using cassava starch as substrate. At 1% substrate concentration ethanol yield was 0.35g/100ml while the ethanol concentration increased to a maximum of 3.60g/100ml at 8% substrate concentration. When the culture conditions were optimized, the ethanol yield further increased to 4.30g/100ml at a temperature of 35oC, pH 5.0, 300rpm agitation rate and reduced fermentation period of 4 days.

Author Biography

Ado S. A., Department of Microbiology, Ahmadu Bello University, Zaria

Head and Senior Lecturer, Department of Biological Sciences

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Issue

Vol. 4 No. 1 (2009)

Section

ARTICLES