title: Biotechnological potential of Bacillus salmalaya 139SI: a novel strain for remediating water polluted with crude oil waste.
abstract: Environmental contamination by petroleum hydrocarbons, mainly crude oil waste from refineries, is becoming prevalent worldwide. This study investigates the bioremediation of water contaminated with crude oil waste. Bacillus salamalaya 139SI, a bacterium isolated from a private farm soil in the Kuala Selangor in Malaysia, was found to be a potential degrader of crude oil waste. When a microbial population of 108 CFU ml-1 was used, the 139SI strain degraded 79% and 88% of the total petroleum hydrocarbons after 42 days of incubation in mineral salt media containing 2% and 1% of crude oil waste, respectively, under optimum conditions. In the uninoculated medium containing 1% crude oil waste, 6% was degraded. Relative to the control, the degradation was significantly greater when a bacteria count of 99 × 108 CFU ml-1 was added to the treatments polluted with 1% oil. Thus, this isolated strain is useful for enhancing the biotreatment of oil in wastewater.
authors: Department of Biohealth Science, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.
authors: Salmah
authors: S
authors: Ismail
authors: Department of Biohealth Science, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.
authors: Arezoo
authors: A
authors: Dadrasnia
mesh_terms: D000818:Animals; D001407:Bacillus / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D001673:Biodegradation, Environmental; D045703:Emulsifying Agents / Q000378:metabolism; D006461:Hemolysis; D007218:Industrial Microbiology / Q000379:methods*; D010578:Petroleum / Q000032:analysis* / Q000382:microbiology*; D010802:Phylogeny; D012756:Sheep; D012988:Soil Microbiology; D013501:Surface-Active Agents / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000379:methods; D014877:Water Pollution, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*
chemical_list: D045703:Emulsifying Agents; D010578:Petroleum; D013501:Surface-Active Agents