Drilling fluid base oil biodegradation potential of a soil Staphylococcus species | Zendy

Ong Ce | Zendy; C. Okpokwasili G. | Zendy

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Drilling fluid base oil biodegradation potential of a soil Staphylococcus species

Author(s) -

Ong Ce,

C. Okpokwasili G.

Publication year - 2003

Publication title -

african journal of biotechnology

Language(s) - English

Resource type - Journals

ISSN - 1684-5315

DOI - 10.5897/ajb2003.000-1059

Subject(s) - biodegradation , bioremediation , drilling fluid , base oil , staphylococcus aureus , base (topology) , environmental chemistry , drilling , chemistry , energy source , petroleum , environmental science , microbiology and biotechnology , bacteria , contamination , geology , ecology , biology , organic chemistry , materials science , metallurgy , scanning electron microscope , paleontology , mathematical analysis , mathematics , composite material

Staphylococcus sp. isolated from oil-contaminated soil was grown in 1% drilling fluid base oil, HDF- 2000, as a sole source of carbon and energy. The organism has strong affinity for the substrate, growing at the rate of 0.16 h-1. It uses adherence and emulsification as mechanisms for oil uptake. In a nutrient-rich marine broth, base oil (up to 2.0% v/v) and glucose (up to 1.6% w/v) have no significant effect on the growth rates. This showed that the Staphylococcus sp. is a strong primary utilizer of the base oil and has potential for application in bioremediation processes involving oil-based drilling fluids. Key words : Drilling fluid base oil, Staphylococcus sp., biodegradation African Journal of Biotechnology Vol.2(9) 2003: 293-295

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