Pseudomonas aeruginosa BYK-2에 의한 생물유화제에 발효생산

  • 김학주 (부경대학교 식품생명공학부) ;
  • 이경미 (부경대학교 식품생명공학부) ;
  • 정혜성 (부경대학교 식품생명공학부) ;
  • 김봉조 (부경대학교 식품생명공학부) ;
  • 강양순 (국립수산진흥원 남해수산연구소 통영분소) ;
  • 공재열 (부경대학교 식품생명공학부)
  • Published : 2000.04.08

Abstract

The purified biosurfactant $3.16g/{\ell}$ was obtained after cultivation for 104hr at $25^{\circ}C$ with an optimal agitation speed of 200rpm, an aeration rate of 2vvm in a $14{\ell}$ fermenter containing $5.5{\ell}$ of LB medium and 1%(w/v) olive oil as a carbon source. For the kinetic studies, the optimal substrate concentration was analyzed on different olive oil concentrations(0.1, 0.5, 1.0, 1.5, 2.0%(w/v)) and optimal culture conditions(MLBM, 200rpm, 2vvm at $25^{\circ}C$) in a $14{\ell}$ jar fermenter. The results obtained indicate that $K_s$=0.0086 $g/{\ell}$, $q_s$= 0.664 $g/g{\cdot}h$, $q_p$= $4.2{\times}10^{-3}$ $g/g{\cdot}h$, and ${\mu}_{max}$ was determined as $0.1449h^{-1}$.

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