New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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Optimization of Fermentation Conditions for the Ethanol Production from Sweet Sorghum Juice by Saccharomyces cerevisiae using Response Surface Methodolgy

단수수 착즙액으로부터 에탄올 생산을 위한 반응표면분석법을 이용한 효모 발효조건 최적화

  • 차영록 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 박유리 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 김중곤 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 최용환 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 문윤호 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 박선태 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 안기홍 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 구본철 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 박광근 (농촌진흥청 국립식량과학원 바이오에너지작물센터)
  • Received : 2011.11.11
  • Accepted : 2011.12.20
  • Published : 2011.12.25
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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

References

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