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Journal of Applied Sciences

Year: 2009 | Volume: 9 | Issue: 17 | Page No.: 3068-3073
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Authors

N. Nadir

M. Mel

M.I.A. Karim

R.M. Yunus

Keywords

Research Article

Comparison of Sweet Sorghum and Cassava for Ethanol Production by Using Saccharomyces cerevisiae

N. Nadir, M. Mel, M.I.A. Karim and R.M. Yunus
The two-step enzymatic hydrolysis of sweet sorghum and cassava were performed by commercially available α-amylase and glucoamylase and further ethanol fermentation of the obtained hydrolyzates by Saccharomyces cerevisiae were studied. For both sweet sorghum and cassava, the hydrolysis and fermentation were done in a 2 L stirred tank bioreactor, B-Braun fermenter, by using the same conditions. The amount of glucose obtained after hydrolysis process was greater in sweet sorghum compared to cassava, which are 50.07 and 40.00 g L-1, respectively. Also, sweet sorghum gave higher ethanol concentration than cassava at the 64 h of fermentation process, which are 40.11 and 34.07 g L-1, respectively.
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