Isolation of A Hydrocarbon Degrading Bacteria and Biosurfactants-Producing Bacteria

In order to manage the problem of petroleum contaminated soil effectively,a hydrocarbon degrading bacteria and Biosurfactants-Producing Bacteria M isolated from oil contaminated soil in Daqing oil field,.Petroleum hydrocarbon degradation was researched in this thesis.The experiments of degrading crude oil indicated that the bacteria of M had a powerful ability and the biodegradation rate of TPH came to 57% after 7 d.The bio-surfactants produced by the bacteria of M were mainly indentified as glycolipid by FT-IR analysis.The bio-surfactants produced by the bacteria of M made the surface tension of the medium reduce from 56.1 mN m-1(CK) to 32.3 mN m-1.The study reported that the bacteria have a high oil degradation ability and could decrease surface tension effectively,with large potential application.