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http://dx.doi.org/10.7849/ksnre.2011.7.4.003

Optimization of Fermentation Conditions for the Ethanol Production from Sweet Sorghum Juice by Saccharomyces cerevisiae using Response Surface Methodolgy  

Cha, Young-Lok (농촌진흥청 국립식량과학원 바이오에너지작물센터)
Park, Yu-Ri (농촌진흥청 국립식량과학원 바이오에너지작물센터)
Kim, Jung-Kon (농촌진흥청 국립식량과학원 바이오에너지작물센터)
Choi, Yong-Hwan (농촌진흥청 국립식량과학원 바이오에너지작물센터)
Moon, Youn-Ho (농촌진흥청 국립식량과학원 바이오에너지작물센터)
Bark, Surn-Teh (농촌진흥청 국립식량과학원 바이오에너지작물센터)
An, Gi-Hong (농촌진흥청 국립식량과학원 바이오에너지작물센터)
Koo, Bon-Cheol (농촌진흥청 국립식량과학원 바이오에너지작물센터)
Park, Kwang-Geun (농촌진흥청 국립식량과학원 바이오에너지작물센터)
Publication Information
New & Renewable Energy / v.7, no.4, 2011 , pp. 3-9 More about this Journal
Abstract
Optimization of initial total sugar concentration of sweet sorghum juice, aeration time and aeration rate on ethanol production was performed by response surface methodology (RSM). The optimum conditions for ethanol production from concentrated sweet sorghum juice were determined as follows: initial total sugar concentration, 21.2 Brix; aeration time, 7.66h; aeration rate, 1.22 vvm. At the optimum conditions, the maximum ethanol yield was predicted to be 91.65% by model prediction. Similarly, 92.98% of ethanol yield was obtained by verification experiment using optimum conditions after 48 h of fermentation. This result was in agreement with the model prediction.
Keywords
Sweet Sorghum juice; Saccharomyces cerevisae; Ethanol fermentation; Response surface methodolgy(RSM);
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