해수(海水), 활성오이(活性汚泥) 등으로 부터 난분해성 유기염소계 오염물질인 Polychlorinated Biphenyls(PCBs)를 분해하는 균주를 분리, 선정한 후 세균학적 특성을 조사한 결과 Alcaligenes aquamarinus로 추정되었다. 기본염류배지에 PCB-42를 첨가하여 분해조건을 조사한 바 $25^{circ}C$, $pH;7.0{sim}8.0$ 및 첨가농도 0.1%에서 가장 잘 분해되었으며 또한 진탕배양은 분해를 촉진하고 glucose와 peptone의 첨가는 효과가 인정되었으나 Zn 및 Mn의 첨가효과는 인정되지 않았다.
PCBs was degraded by bacterium, which was classified as a strain of Alcaligenes aquamarinus. Its PCB-42 degradation was maximized when grown on mineral salts medium containing 0.1% of PCB-42 as a sole carbon source at $25^{circ}C$ and initial pH $7.0{sim}8.0$, and also shaking culture was effective for it. The addition of glucose and peptone were effective for the degradation of PCB-42, but metal ions were not effective.
