Gas Chromatographic Investigation of Oil Biodegradation Degree

The research of the degree of oil biodegradation by gas chromatography and individual classes of hydrocarbons by various strains of hydrocarbon-oxidizing microorganisms isolated from indigenous microflora of oil fields was carried out. It has been shown that some of the investigated strains of hydrocarbon-oxidizing microorganisms are 100% capable to biotransform naphthenes and olefins, showing high activity in the destruction of paraffins and isoparaffins. There are no signs of biodegradation of aromatic compounds due to the large duration of the process. All investigated strains of hydrocarbon-oxidizing microorganisms are largely able to reduce the total number of individual components of oil. The obtained data can be used to develop new biologics of the purpose

Microbiological Quality Control of Probiotic Products

Microbiological quality control of probiotic products such as Imunele, Dannon, Pomogayka showed that they contain living cultures of the Lactobacillus Bifidobacterium genus in the amount of 107 CFU/ml, which corresponds to the number indicated on the label of products. It is identified that the survival rate of test-strains cultured with pasteurized products does not exceed 10%. The cell concentration of target-microorganisms was reduced by 20-45% after the interaction with living probiotic bacteria. Thus, the yogurt Activia has the most antagonistic activity

Study of the Hydrocarbon-oxidizing Activity of Bacteria of the Genera Pseudomonas and Rhodococcus

The selective activity of hydrocarbon-oxidizing microorganisms with regard to the degradation of alkanes, cycloalkanes, arenes was presented. The hydrocarbon-oxidizing activity of microorganisms of the genera Rhodococcus and Pseudomonas such as heptane, cyclohexane, toluene within the hydrocarbons destruction was determined. The growth rate for various hydrocarbons differs. Thus, the average specific growth rate of hydrocarbon-oxidizing microorganism (HOM) of the genus Rhodococcus is twice more than these substrates