Laboratory study of microbial cleaning of oil spills under saudi environemental conditions

摘要

An active strain of Pseudomonas sp. isolated from oil-contaminated soil at the Arabian Gulf was able to utilize the crude oil at a concentration of 5 mg/ml added to sterile Gulf water. Microbial growth and gas chromato-graphic analysis of the remaining oil were used as a criteria for oil degradation by this strain. The bacteria at a cell density of 10~5 CFU/ml was able to degrade the crude oil at concentrations ranged from 2.5 to 15 mg/ml in Gulf water samples. At low concentration (2.5 mg/ml), about 70