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Evaluation Of Bioemulsifier Production Potential Of Two Species Of Acinetobacter Grown On Chrysene And Diesel Oil
Author(s) -
IgwoEzikpe Miriam Nwanna,
Gbenle George Olabode,
Ilori Matthew Olusoji
Publication year - 2007
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.21.6.a1008-b
Subject(s) - chrysene , acinetobacter , food science , diesel fuel , chemistry , environmental science , pulp and paper industry , antibiotics , environmental chemistry , organic chemistry , biochemistry , engineering , phenanthrene
Acinetobacter anitratus and Acinetobacter mallei were evaluated for their potential production of bioemulsifier when grown on varying concentrations of chrysene and diesel oil respectively as sole carbon and energy sources. Extracellular fluid of both organisms grown on diesel oil media showed emulsification activities against kerosene, diesel oil, engine oil, hexadecane, dodecane and xylene at varying degree. None emulsification activity was observed for the organisms grown on chrysene media. However, extracellular fluid from both chrysene and diesel oil growth media showed statistical significant difference (P<0.05) in protein and carbohydrate content compared to either non‐chrysene or non‐diesel oil carbon sources growth media. These extracellular secreted protein and carbohydrate may constitute component of the biosurfactant produced by these organisms involved in solubilization of chrysene and diesel oil. A. anitratus and A. mallei showed haemolytic activity when grown on diesel oil but not on chrysene indicating that bioemulsifier production was dependent on carbon source used.