The properties of hydrocarbon-oxidizing bacteria isolated from the oilfields of Tatarstan, western Siberia, and Vietnam.

Autor: Borzenkov, I. A., Milekhina, E. I., Gotoeva, M. T., Rozanova, E. P., Belyaev, S. S.
Předmět:
Zdroj: Microbiology (00262617); Jan2006, Vol. 75 Issue 1, p66-72, 7p, 3 Charts, 2 Graphs
Abstrakt: Eleven strains of hydrocarbon-oxidizing bacteria, isolated from oilfields and representing the genera Rhodococcus, Gordonia, Dietzia, and Pseudomonas, were characterized as mesophiles and neutrophiles. Rhodococci were halotolerant microorganisms growing in a media containing up to 15% NaCl. All the strains oxidized n-alkanes of crude oil. An influence of the cultivation temperatures (28 or 45°C) and organic supplements on the degradation of C12-C30 n-alkanes in oxidized oil by two bacterial strains of the genus Pseudomonas was shown. The introduction of acetate, propionate, butyrate, ethanol, and sucrose led mainly to decreased oxidation of petroleum paraffins. At certain cultivation temperatures, the addition of volatile fatty acid salts increased the content of certain n-alkanes in oxidized oil as compared to crude oil. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index