Biotechnology and Bioprocess Engineering:BBE

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Effects of Aeration Rates on Production on Extracellular Polysaccharide, EPS-R, by Marine Bacterium Hahella chejuensis

  • Lee, Hyung-Sang (Microbiology Laboratory, Korea Ocean Research & Development Institute) ;
  • Park, Shin-Hye (Microbiology Laboratory, Korea Ocean Research & Development Institute) ;
  • Lee, Jong-Ho (Department of Biology, Sung Kyun University) ;
  • Lee, Hong-Kum (Microbiology Laboratory, Korea Ocean Research & Development Institute)
  • Published : 2001.09.01
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Abstract

The production of an extracellular polysaccharide, EPS-R, from the marine bacterium Hahella chejuensis was investigated at various aeration rates in a batch culture. Higher aeration rate resulted in enhanced EPS production and increased the viscosity of the culture broth. At an aeration rate of 1.5 vvm, EPS-R (12.2 g/L) was obtained with a yield (Y$\_$p/s) of 0.6 from the STN medium after 72 h of cultivation. The H. chejuensis cells changed rod morphology to a short-rod form in the stationary growth phase.

Keywords

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