A new look on factors affecting microbial degradation of petroleum hydrocarbon pollutants

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°C and pH 7 were found to be optimum for maximum degradation.

Biodegradation of Crude Oil by Individual Bacterial Strains and a Mixed Bacterial Consortium Isolated from Hydrocarbon Contaminated Areas

Biotechnology in the petroleum industry: An overview

https://repositorium.sdum.uminho.pt/bitstream/1822/19932/1/Gudina_2012.pdf

Isolation and study of microorganisms from oil samples for application in Microbial Enhanced Oil Recovery

Principles of microbial degradation of petroleum hydrocarbons in the environment

https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/19107/1/IBB59-1.pdf

Degradation Of Long-Chain N-Alkanes (C36 And C40) By Pseudomonas Aeruginosa Strain Watg

https://noah.ees.hokudai.ac.jp/emb/morikawalab/pdf/ItoIBB2008.pdf

Hitoshi Ito

Papers

Degradation Of Long-Chain N-Alkanes (C36 And C40) By Pseudomonas Aeruginosa Strain Watg

A turbine oil-degrading bacterial consortium from soils of oil fields and its characteristics

Analysis of car structures in future market and necessary policy for environment based on the vehicle performance and economic aspects