Biodegradation of crude oil by individual bacterial strains and a mixed bacterial consortium isolated from hydrocarbon contaminated areas

被引：129

作者：

Sathishkumar, Muthuswamy ^{[1
,2
]}

Binupriya, Arthur Raj ^{[2
]}

Baik, Sang-Ho ^{[3
]}

Yun, Sei-Eok ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Inst Agr Sci & Technol, Div Biotechnol, Dept Food Sci & Technol,Res Inst Bioind, Chonju 561756, South Korea

[2] Regent Ecotech Private Ltd, Res & Dev Div, Coimbatore, Tamil Nadu, India

[3] Korea Atom Energy Res Inst, ARTI, Radiat Appl Res Div, Jeongeup, South Korea

来源：

CLEAN-SOIL AIR WATER | 2008年 / 36卷 / 01期

关键词：

bacteria; bacterial consortium; crude oil; degradation; hydrocarbon;

D O I：

10.1002/clen.200700042

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A preliminary study was undertaken to determine the optimal conditions for the biodegradation of a crude oil. Among 57 oil-degrading bacterial cultures isolated from oil-contaminated soil samples, Bacillus sp. IOS1-7, Corynebacterium sp. BPS2-6, Pseudomonas sp. HPS2-5, and Pseudomonas sp. BPS1-8 were selected for the study based on the efficiency of crude oil utilization. Along with the selected individual strains, a mixed bacterial consortium prepared using the above strains was also used for degradation studies. The mixed bacterial consortium showed more growth and degradation than did individual strains. At 1% crude oil concentration, the mixed bacterial consortium degraded a maximum of 77% of the crude oil. This was followed by 69% by Pseudomonas sp. BPS1-8, 64% by Bacillus sp. IOS1-7, 45% by Pseudomonas sp. HPS2-5, and 41% by Corynebacterium sp. BPS2-6. The percentage of degradation by the mixed bacterial consortium decreased from 77 to 45% as the concentration of crude oil was increased from 1 to 12%. Temperature of 35 degrees C and pH 7 were found to be optimum for maximum degradation.

引用

页码：92 / 96

页数：5

共 38 条

[1]

[Anonymous], MANUAL DIAGNOSTIC MI

[2] MICROBIAL-DEGRADATION OF PETROLEUM-HYDROCARBONS - AN ENVIRONMENTAL PERSPECTIVE [J].