Degradation of aromatic compounds by the oil-oxidizing bacteria Nocardia vacciniiк-8 and Acenitobacter calcoaceticus ІМВ В-7241

Abstract

Nowadays the problem of environmental remediation of aromatic xenobiotics is rather actual because of their pronounced carcinogenic and mutagenic properties. Biotechnologies may be an alternative to physical and chemical methods of environmental remediation thanks for the high destructive potential of the microorganism, ecological safety and cheapness. It was shown that the oil-oxidizing bacteria Nocardia vaccinii К-8 та Acenitobacter calcoaceticus ІМВ В-7241 assimilated substrates of aromatic nature and synthesized practically valuable surfactants. The growth of strains K-8 and IMV B-7241 on aromatic compounds was intensified in 1.5-2 times in the case of the consecutive cultivation of the inoculum of the studied strains on liquid medium containing aromatic compounds (0.1-0.25%) compared to using the inoculum cultivated on the meat infusion agar. These strains are promising for use in the remediation of water and soil polluted with aromatic xenobiotics.