Inhibition Effects of Furfural on Aerobic Batch Cultivation of Saccharomyces cerevisiae Growing on Ethanol and/or Acetic Acid

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概要

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• Physiological effects of furfural on Saccharomyces cerevisiae growing on ethanol (15 g・l^<-1>) or acetate (20 g・l^<-1>) as the carbon and energy source were investigated. Furfural (4 g・l^<-1>), which was added during the exponential growth phase in batch cultures, was found to strongly inhibit cell growth on both carbon sources. No biomass formation occurred in the presence of furfural. However, furfural was in both cases converted to furfuryl alcohol and furoic acid, and growth resumed after complete conversion of furfural. During growth on ethanol, a rapid initial conversion of furfural to furfuryl alcohol was observed during the first few minutes after the addition of furfural, after which the conversion rate decreased to approximately 0.15 g・g^<-1>・h^<-1> for the remaining conversion time. Acetaldehyde accumulated in the medium during the first few hours of conversion. Interestingly, addition of acetate after furfural addition resulted in an increased conversion rate of furfural and a higher carbon dioxide evolution rate, but no growth was observed until after complete conversion of furfural. Furfural addition to cells growing on acetate as the sole carbon source induced no formation of acetaldehyde, and the furfural conversion rate was lower than that on ethanol. The relationship between inhibition effects of furfural and NADH consumption is discussed.

• 公益社団法人日本生物工学会の論文
• 2000-10-25

著者

• Gustafsson Lena

  Department Of Chemistry And Bioscience Box 462 Chalmers University Of Technology

• Niklasson Claes

  Department Of Chemical Reaction Engineering Chalmers University Of Technology

• Liden Gunnar

  Department of Chemical Engineering, Lund University

• TAHERZADEH MOHAMMAD

  Department of Chemical Reaction Engineering, Chalmers University of Technology

• Liden Gunnar

  Department Of Chemical Engineering Ii Lund Institute Of Technology

• Taherzadeh Mohammad

  Department Of Chemical Reaction Engineering Chalmers University Of Technology

関連論文

• Steam pretreatment and fermentation of the straw material "Paja Brava" using simultaneous saccharification and co-fermentation(MICROBIAL PHYSIOLOGY AND BIOTECHNOLOGY)
• Inhibition Effects of Furfural on Aerobic Batch Cultivation of Saccharomyces cerevisiae Growing on Ethanol and/or Acetic Acid
• Conversion of Furfural in Aerobic and Anaerobic Batch Fermentation of Gluxose by Saccharomyces cerevisiae
• The Fermentation Performance of Nine Strains of Saccharomyces cerevisiae in Batch and Fed-Batch Cultures in Dilute-Acid Wood Hydrolysate(MICROBIAL PHYSIOLOGY AND BIOTECHNOLOGY)

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