콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Toxicity of phenanthrene dissolved in nonionic surfactant solutions to Pseudomonas putida P2
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2007-02
- 저자명 우승한
- 학술지명 FEMS Microbiology Letters
- 발행처명 WILEY-BLACKWELL PUBLISHING, INC
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
논문 초록 (Abstract)
The fraction in which direct contact occurs between micellar-phase phena nthrene and the bacterial cell surface was estimated by measuring the to xicity of nonionic surfactant (Tween 80 and Triton X-100) solutions to t he phenanthrene-degrading bacterium, Pseudomonas putida P2. Cell viabili ty of completely dissolved phenanthrene decreased by 30% at concentratio ns greater than 0.3 mg L-1, which is equal to approximately one third of its solubility. Both nonionic surfactants had no effect on cell viabili ty up to 5 g L-1. Cell viability increased with increasing surfactant co ncentration at a fixed phenanthrene concentration, due to the decreased concentration of aqueous-pseudophase phenanthrene and the reduced fract ion of direct contact. The fraction of direct contact was c. 20% or more below 3 g L-1 of Triton X-100. The fraction of direct contact for Tween 80 was estimated to be lower than Triton X-100. ？ 2006 Federation of E uropean Microbiological Societies.
