Isobutanol and 3-methyl-1-butanol production by saccharomyces cerevisiae in aerobic condition

• Main Authors: Ramli, Nor Azah, A. Rahman, Roshanida, Ngadi, Norzita
• Format: Conference or Workshop Item
• Language: English
• Published: 2015
• Subjects: TP Chemical technology
• Online Access: http://eprints.utm.my/id/eprint/62155/1/RoshanidaA.Rahman2015_Isobutanoland3-Methyl-1-ButanolProduction.pdf; http://eprints.utm.my/id/eprint/62155/; http://www.utm.my/iclca2015/

Alternative fuels from renewable sources are receiving public and scientific attention due to continuous depletion of petroleum fuel-reserves and environmental problem such as global warming and climate change. Higher alcohols (C3-C5) possess many advantages thus become suitable candidate in replacing gasoline as transprtation fuel. This paper investigates the production of isobutanol and 3-methyl-1-butanol as well as the toxicity of these alcohols towards Saccharomyces cerevisiae. This yeast was able to produce both alcohols with the highest concentration of 92 mg/ L (isobutanol) and 245 mg/L (3-methyl-1-butanol). Saccharomyces cerevisiae was capable to grow in more than 2% isobutanol but unable in concentration of 3-methyl-1-butanol higher than 1%.