title: Lipid composition of some yeast strains from Livingston Island, Antarctica.
abstract: Yeast strains Cryptococcus albidus, Cryptococcus laurentii, Rhodotorula minuta were isolated from a moss sample. Candida oleophila and Rhodotorula mucilaginosa were isolated from a soil sample taken from Livingston Island. Antarctica. Fatty acid, phospholipid, sterol and tocopherol composition was determined in separated lipid fraction after fermentation in a medium containing glucose, peptone and yeast extract. Unsaturated fatty acids, mainly oleic (51-65%) and linoleic (9.5-16.8%), predominated in triacylglycerols. Sterols represent ca. 120-930 mg per kg dry biomass. The content of major phospholipids (phosphatidylcholine, phosphatidylinositol and phosphatidylethanolamine) was ca. 100-800 mg/kg. The amount of tocopherols (mainly gamma- and delta-tocopherol) was 2.1-6.3 mg/kg.
authors.affiliation: Department of Chemical Technology, University of Plovdiv, 4000 Plovdiv, Bulgaria. Magzlat@pu.acad.bg
authors.forename: M
authors.initials: M
authors.lastname: Zlatanov
authors.forename: K
authors.initials: K
authors.lastname: Pavlova
authors.forename: D
authors.initials: D
authors.lastname: Grigorova
mesh_terms: D000864:Antarctic Regions; D005227:Fatty Acids / Q000032:analysis; D008055:Lipids / Q000032:analysis* / Q000737:chemistry; D010743:Phospholipids / Q000032:analysis; D012988:Soil Microbiology; D013261:Sterols / Q000032:analysis; D024505:Tocopherols / Q000032:analysis; D015003:Yeasts / Q000737:chemistry*
chemical_list: D005227:Fatty Acids; D008055:Lipids; D010743:Phospholipids; D013261:Sterols; D024505:Tocopherols