PAHs 분해균주 US6-1에 의한 PAHs 분해 최적화 연구

Abstract

Optimal condition of the biodegradation of high molecular weight PAHs by strain US6-1 was investigated. The strain US6-1 require growth substrates and surfactants for the degradation of high molecular weight PAHs such as benzo[a]pyrene. Addition of β-HPCD (2-hydroxypropyl-β-cyclodextrin) finally to 10% of medium was most effective as simultaneously growth substrate and surfactant. Co-addition of 1% dextrin and 10 × CMC Tween 80 were also effective. The optimal temperature ranged 30 to 35 ℃ and optimal pH ranged 5.0 or 8.0 to 8.5. The effectiveness of inoculating strain US6-1 on contaminated sediments was also investigated and get affirmative results.