Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Continuous Ethanol Fermentation in Air-lift Reactor by Flocculent Saccharomyces cerevisiae CA-1

응집성 Saccharomyces cerevisiae CA-1에 의한 에탄올 연속발효

  • 이용범 (중앙대학교 산업대학 식품가공학과) ;
  • 심상국 (동남보건전문대학 식품가공과) ;
  • 한면수 (중앙대학교 산업대학 식품가공학과) ;
  • 정동효 (중앙대학교 산업대학 식품가공학과)
  • Published : 1995.12.01
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Abstract

Using a flocculating Saccharomyes cerevisiae CA-1, an air-lift reactor equipped with a modified settler was used for ethanol fermentation. The effects of conditions such as aeration rate, initial glucose concentration, and dilution rate were studied using the air-lift reactor. In batch fermentation, optimum aeration rate was 0.5 vvm. In continuous fermentation, aeration rate and initial pH were fixed 0.5 vvm and 4.5, substrate concentration and dillution rate were changed 10-15% and 0.1-1.3. The maximum ethanol productivity was shown to be 20.4 g/l$\cdot $h in 10% glucose and 0.7 h$^{-1}$ dilution rate., and optimum operation condition considering the ethanol productivity and glucose utilization ratio was 0.5 h$^{-1}$ dilution rate in 10% glucose concentration.

Keywords

References

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