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Biodegradation of hydrocarbons in soil by microbial consortium

Mohamad Ghazali, Farinazleen and Raja Abdul Rahman, Raja Noor Zaliha and Salleh, Abu Bakar and Basri, Mahiran (2004) Biodegradation of hydrocarbons in soil by microbial consortium. International Biodeterioration & Biodegradation, 54 (1). pp. 61-67. ISSN 0964-8305; ESSN: 1879-0208

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The bioremediation of hydrocarbon in contaminated soils by mixed cultures of hydrocarbon-degrading bacteria was investigated. The mixtures or consortia of bacteria, denoted as Consortium 1 and Consortium 2 consisted of 3 and 6 bacterial strains, respectively. Bacterial strains used in this study were from the Center for Research in Enzymes and Microbiology (CREAM) collection of strains, at Universiti Putra Malaysia, and were isolated from hydrocarbon-contaminated soil samples by enrichments on either crude oil or individual hydrocarbons as the sole carbon source. The strains were selected based on the criteria that they were able to display good growth in crude oil, individual hydrocarbon compounds or both. Their ability to degrade hydrocarbon contamination in the environment was investigated using soil samples that were contaminated with diesel, crude oil or engine oil. Consortium 2, which consisted of 6 bacterial strains, was more efficient at removing the medium- and long-chain alkanes in the diesel-contaminated soil compared to Consortium 1. Further, Consortium 2 could effectively remove the medium- and long-chain alkanes in the engine oil such that the alkanes were undetectable after a 30-day incubation period. Consortium 2 consisted predominantly of Bacillus and Pseudomonas spp.

Item Type:Article
Keyword:Biodegradation; Hydrocarbons; Microbial consortium; Pseudomonas sp.; Bacillus sp.
Faculty or Institute:Faculty of Science and Environmental Studies
DOI Number:10.1016/j.ibiod.2004.02.002
ID Code:5695
Deposited By: Erni Suraya Abdul Aziz
Deposited On:17 May 2010 10:29
Last Modified:28 Sep 2016 10:35

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