Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Effects of Nutritional Sources on Degradation of Polychlorinated Biphenyls (PCBs) by Pseudomonas sp. P2

Pseudomonas sp. P2에 의한 Polychlorinated Biphenyls(PCBs) 분해에 대한 영양원의 영향

  • 최상기 (경산대학교 환경과학과) ;
  • 금정호 (경산대학교 환경과학과)
  • Published : 1996.10.01
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Abstract

The effects of nutritional sources on growth of Pseudomonas sp. P2 were investigated in medium containing biphentyl as a carbon source. To determine characterization of Pseudomonas sp. P2, the incubation time was determined to 100 h of the log phase in the growth curve. The optimal compositions for the growth of Pseudomonas sp. P2 degrading polychlorinated biphenyls (PCBs) were 1000 mg/L $NH_4NO_3$, 1000mg/L KH_2PO_4$, 100mg/L MgSO_4$.$7H_2O$, 30mg/L $CaCl_2$.$2H_2O$, 200mg/L NaCl, and 10mg/L $FeSO_4$.$7H_2O$. Pseudomonas sp. P2 showed the degradability of 59.3%, 57.6%, 51.4%, and 48.7% at 500mg/L, 1000mg/L, 1500mg/L, and 2000mg/L of the PCBs within insulating oil after 100 h incubation under the optimum conditions, respectively.

유일한 탄소원으로서 Biphenyl을 포함하고 있는 액체배지에서 Pseudomonas sp. P2의 생육에 미치는 영양원의 효과에 관해 연구하였다. Pseudomonas sp. P2의 특성을 조사하기 위한, 배양시간은 균의 생육 유선에서 대수성장기 말인 100시간으로 하였다. PCBs를 분해하는 Pseudomonas sp. P2의 생육을 위한 최적 조성은 1000 mg/L $NH_4NO_3$, 1000 mg/L KH_2PO_4$, 100 mg/L MgSO_4$.$7H_2O$, 30 mg/L $CaCl_2$.$2H_2O$, 200 mg/L NaCl, 10mg/L $FeSO_4$.$7H_2O$였다. Pseudomonas sp. P2에 의한 100시간 배양후 절연유 내에 있는 PCBs의 분해률은 500mg/L에서 59.3%, 1000mg/L에서 57.6%, 1500mg/L에서 51.4%, 2000mg/L에서는 48.775 였다.

Keywords

References

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