Journal of Microbiology and Biotechnology

  • 제18권1호
  • /
  • Pages.104-106
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  • 2008
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  • 1017-7825(pISSN)
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  • 1738-8872(eISSN)
한국미생물·생명공학회 (The Korean Society for Microbiology and Biotechnology)
권호 표지

Morphological Variation of Enterobacter sp. BL-2 in Acetate-mediated pH Environment for Excretive Production of Cationic Microbial Polyglucosamine Biopolymer

  • Son, Mi-Kyung (Department of Genetic Engineering, College of Natural Sciences, Kyungpook National University) ;
  • Hong, Soo-Jung (Department of Genetic Engineering, College of Natural Sciences, Kyungpook National University) ;
  • SaGong, Kuk-Hwa (Department of Genetic Engineering, College of Natural Sciences, Kyungpook National University) ;
  • Lee, Yong-Hyun (Department of Genetic Engineering, College of Natural Sciences, Kyungpook National University)
  • 발행 : 2008.01.31
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초록

Enterobacter sp. BL-2 excretively produced a unique cationic polyglucosamine biopolymer PGB-1 comprised of more than 95% D-glucosamine in an acetate-mediated culture condition. The excretion of the biopolymer PGB-1 was closely associated with the cellular morphology of Enterobacter sp. BL-2, a feature highly dependable on the pH of the medium. The initially formed uneven and irregular surface cells were aggregated into the cell-biopolymer network structure connected by the adhesion modules of the cell-bound biopolymer. The excretive production of the biopolymer PGB-1 coincided with the disruption of the cell-biopolymer network, most actively at the medium pH of 8.0.

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참고문헌

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