title: [Hydrocarbons and fatty acid methyl esters in bacterial biomass before and after physicochemical treatment].
abstract: Hydrocarbons and fatty acid methyl esters were identified by chromatography-mass spectrometry in the extracts from the native biomass of bacteria: chemoorganoheterotrophic Arthrobacter sp. and Pseudomonas aeruginosa and chemolithoautotrophic Carboxydothermus sp. Ultrasound treatment of bacterial biomass and mild thermolysis were shown promote formation of a broad spectrum of hydrocarbons from bacterial biomass. The biomarker stigmastane belonging to the sterane group was found in P. aeruginosa biomass after thermolysis at 110 degrees C in an open vial. Alkane composition in P. aeruginosa biomass before and after thermolysis at 300 degrees C in a sealed container remained unchanged, indicating the possibility of preservation of hydrocarbons of bacterial origin in sealed layers under high temperature and elevated pressure.
authors.forename: I V
authors.initials: IV
authors.lastname: Botvinko
authors.forename: O V
authors.initials: OV
authors.lastname: Popova
authors.forename: A R
authors.initials: AR
authors.lastname: Stroeva
authors.forename: S A
authors.initials: SA
authors.lastname: Shuvalov
authors.forename: V A
authors.initials: VA
authors.lastname: Vinokurov
mesh_terms: D001173:Arthrobacter / Q000737:chemistry*; D018533:Biomass; D004952:Esters / Q000032:analysis / Q000737:chemistry; D005227:Fatty Acids / Q000032:analysis* / Q000737:chemistry; D006361:Heating; D006838:Hydrocarbons / Q000032:analysis*; D013058:Mass Spectrometry; D011550:Pseudomonas aeruginosa / Q000737:chemistry*; D046950:Thermoanaerobacterium / Q000737:chemistry*; D014465:Ultrasonics / Q000379:methods
chemical_list: D004952:Esters; D005227:Fatty Acids; D006838:Hydrocarbons