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Characterization of Diesel Oil-Degrading Bacteria  

안민정 (명지대학교 생명과학과)
한윤전 (명지대학교 생명과학과)
임현섭 (주식회사 효성 화학연구소 BIO연구팀)
최기현 (주식회사 효성 화학연구소 BIO연구팀)
권오범 (주식회사 효성 화학연구소 BIO연구팀)
정병철 (명지대학교 생명과학과)
Publication Information
Korean Journal of Microbiology / v.39, no.2, 2003 , pp. 108-113 More about this Journal
Abstract
Diesel oil-degrading bacterial strains were isolated from diesel oil contaminated soil and called HS series (HS1, HS2 and HS3). These strains were identified as Acinetobacter sp. (HS1) and Pseudomonas sp. (HS2 and HS3) based on Biolog test, cellular fatty acid composition, and 16S rDNA sequence analysis. These strains were coltivated in liquid minimal media containing 2% diesel oil, and diesel oil-degrading activity was measured. As result, all strains degraded over 70% of total diesel oil. But PAH (polycyclic aromatic hydrocarbon)- and pris- tane-degrading rate of these strain was below 20% of total PAH and pristane. The HS 1 strain showed highest hydrophobicity and low emulsifying activity among the experimental strains and high diesel oil-degrading activity. From the above-mentioned result, microcosm experiment was performed with the HS1 strain. The HS1 strain showed a degrading activity of over 80% of total diesel oil in microcosm test. And microbial activity was correlated to diesel oil-degrading activity. Therefore, it is suggested that the HS1 strains could be effectively used for the bioremediation for diesel oil.
Keywords
bioremediation; diesel oil; emulsifying activity; hydrophobicity; microcosm;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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