Crude petroleum-oil biodegradation efficiency of Bacillus subtilis and Pseudomonas aeruginosa strains isolated from a petroleum-oil contaminated soil from North-East India

被引：434
作者：
Das, Kishore [1 ]
Mukherjee, Ashis K. [1 ]
机构：
[1] Tezpur Univ, Dept Mol Biol & Biotechnol, ONGC, Ctr Petr Biotechnol, Tezpur 784028, India
来源：
BIORESOURCE TECHNOLOGY | 2007年 / 98卷 / 07期
关键词：
Bacillus subtilis; biodegradation; bioremediation; biosurfactant; polyaromatic hydrocarbon (PAH); pseudomonas aeruginosa; total petroleum hydrocarbon (TPH);
D O I：
10.1016/j.biortech.2006.05.032
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The efficiency of Bacillus subtilis DM-04 and Pseudomonas aeruginosa M and NM strains isolated from a petroleum contaminated soil sample from North-East India was compared for the biodegradation of crude petroleum-oil hydrocarbons in soil and shake flask study. These bacterial strains could utilize crude petroleum-oil hydrocarbons as sole source of carbon and energy. Bioaugmentation of TPH contaminated microcosm with P. aeruginosa M and NM consortia and B. subtilis strain showed a significant reduction of TPH levels in treated soil as compared to control soil at the end of experiment (120 d). P. aeruginosa strains were more efficient than B. subtilis strain in reducing the TPH content from the medium. The plate count technique indicated expressive growth and biosurfactant production by exogenously seeded bacteria in crude petroleum-oil rich soil. The results showed that B. subtilis DM-04 and P. aeruginosa M and NM strains could be effective for in situ bioremediation. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1339 / 1345
页数：7
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