KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Effects and Batch Kinetics of Agitation and Aeration on Submerged Cultivation of Ganoderma Iucidum

영지의 액체배양에 미치는 통기.교반의 효과와 동력학적 특성

  • 이학수 (강원대학교 환경·생물공학부 및 연세대학교 생물산업소재연구센터) ;
  • 정재현 (충주산업대학교 식품공학과, 동방미래화학(주) 기술연구소) ;
  • 이신영 (강원대학교 환경·생물공학부 및 연세대학교 생물산업소재연구센터)
  • Published : 2001.06.01
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Abstract

The effects of agitaion and aeration on mycelial growth, exo-polysaccharide (EPS) production, and substrate consumption upon the submerged cultivation of G. lucidum were investigated, and the batch kinetics of the EPS fermentation of G. lucidum were interpreted as function of agitation speed and aeration rate. In a 2.6 L jar fermenter system, the optimum agitation speed and aeration rate for EPS production were determined to be 400 rpm and 1.0 vvm, respectively. The maximum production of EPS obtained was 15 g/L. The logistic model for mycelial growth fitted the experimental data better than that determined by the Monod and the two-thirds power models. The Luedeking-Piret equation adequately modelled the kinetic data obtained for product and substrate.

Keywords

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