Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Degradation of Organochlorinated Pollutants by Microorganism -Degradation of PCBs and Organochlorine Pesticides, and Degradasion Products-

미생물에 의한 난분해성 유기염소계 오염물질의 분해 -각종 PCBs 및 유기염소계 농약의 분해와 분해산물-

  • Kim, Chan-Jo (Department of Food Science and Technology, College of Agriculture, Chungnam National University) ;
  • Oh, Man-Jin (Department of Food Science and Technology, College of Agriculture, Chungnam National University) ;
  • Lee, Jong-Soo (Department of Food Science and Technology, College of Agriculture, Chungnam National University)
  • 김찬조 (충남대학교 농과대학 식품가공학과) ;
  • 오만진 (충남대학교 농과대학 식품가공학과) ;
  • 이종수 (충남대학교 농과대학 식품가공학과)
  • Published : 1987.03.30
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Abstract

Degradation of polychlorinated biphenyls(PCBs) and organochlorine pesticides by Alcaligenes aquamarinus has been studied and also degradation product of PCB-42 was investigated by TLC and GC. The less chlorinated members of PCBs such as Aroclor 1016 was degraded readily by the strain and rates of the microbial degradation of several organochlorine pesticides were found to decrease in the order of p,p'-DDT, r-BHC and Thiolix. Approximately 40 percent of PCB-42 was degraded when incubated with non-autoclaved soil for 25 days at $25^{\circ}C$. The yellow compound from PCB-42 was tentatively identified as p-chlorobenzoic acid.

Alcaligenes aquamarinus에 의한 각종 PCBs와 유기염소계 농약 및 토양중의 PBC-42 분해 등을 검토하고 TLC 등으로 분해산물을 검정한 결과 PCBs에서는 염소화도가 낮은 PCBs가 더 쉽게 분해되었고 유기염소계 농약에서는 p,p'-DDT>r-BHC>Thiolix 순으로 분해되었다. 토양중의 PCB-42의 분해는 살균하지 않은 토양시료에서 $25^{\circ}C$, 25일 배양으로 약 40%가 분해되었다. PCB-42의 분해로 생성된 황색물질의 최대 흡수파장은 pH 4.5에서 258nm와 295nm이었고 분해산물의 일종인 p-chlorobenzoic acid가 TLC와 GC에 의하여 확인되었다.

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