• 제목/요약/키워드: excretive production

검색결과 2건 처리시간 0.02초

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

  • Son, Mi-Kyung;Hong, Soo-Jung;SaGong, Kuk-Hwa;Lee, Yong-Hyun
    • Journal of Microbiology and Biotechnology
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    • 제18권1호
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    • pp.104-106
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    • 2008
  • 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.