[Destruction of motor oils by actinobacteria].
The influence of high concentrations of motor oils (MO) and additives to them on the growth of strains Dietzia maris UKM Ac-205, Gordonia rubripertincta UKM Ac-179 and Rhodococcus erythropolis UKM Ac-50 as well as the ability of these actinobacteria to destruction of different MO brands were investigated. It was shown that all strains were resistant to the used motor oils but showed sensitivity to fresh (unused) MO and additives containing zinc dithiophosphate. The oil "Esso Ultra" which had minimum inhibitory concentration (MIC) within 200-400 mg/ml and the antiwear additive Multadit OB (MIC = 4-10 mg/ml) were most toxic for actinobacteria. It is established that the level of MO degradation at initial concentration of 10 g/l was 25.5-56.0% for 5 days. The studied strains utilized paraffine-naphthene (49.0-61.0%) better than aromatic (18.1-22.5%) and resinous-asphaltene (12.1-18.8%) fractions of motor oils.
Nohina
T M
TM
Khomenko
L A
LA
Pidhors'kyĭ
V S
VS
D039903:Actinobacteria / Q000187:drug effects / Q000254:growth & development*; D001673:Biodegradation, Environmental; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry / Q000633:toxicity; D008899:Mineral Oil / Q000032:analysis* / Q000737:chemistry / Q000633:toxicity; D010710:Phosphates / Q000032:analysis / Q000737:chemistry / Q000633:toxicity
D004785:Environmental Pollutants; D010710:Phosphates; D008899:Mineral Oil; C083120:phosphorodithioic acid