Production of heteropolysaccharide-7 by Beijerinckia indica HS-2001 with continuous culture

  • Yang, Jae-Gyun (Division of Biotechnology, Faculty of Natural Resources and Life Science, Dong-A University) ;
  • Seo, Hyeong-Pil (Division of Biotechnology, Faculty of Natural Resources and Life Science, Dong-A University) ;
  • Sin, Myeong-Gyo (KBP Co., Ltd) ;
  • Lee, Jin-U (Division of Biotechnology, Faculty of Natural Resources and Life Science, Dong-A University)
  • Published : 2003.04.11

Abstract

Maximal production of heteropolysaccharide-7(PS-7) with a batch culture for 48 hr was $10.0\;g/{\ell}$ and its conversion rate from 2% (w/v) glucose to PS-7 was 50%. After substitution of media, production of PS-7 continued and reached its maximal production. The highest productivity occurred when the fresh medium, which contained all ingredients, for the production of PS-7 was substituted. Higher production of PS-7 was maintained at a dilution rate of 0.0125, which was established as the optimal dilution rate for the production of PS-7 by B. indica HS-2001.

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