title: Fatty acid composition of cold-adapted carotenogenic basidiomycetous yeasts.
abstract: We studied fatty acids (FAs) profiles in six carotenoid-producing yeast species isolated from temperate aquatic environments in Patagonia. Total FAs ranged from 2 to 15% of dry biomass. Linoleic, oleic, palmitic and alpha-linolenic acids were the major FAs constituents, which accounted for as much as 40%, 34%, 13% and 9% of total FAs, respectively. The proportion of each FA varied markedly depending on the taxonomic affiliation of the yeast species and on the culture media used. The high percentage of polyunsaturated fatty acids (PUFAs) found in Patagonian yeasts, in comparison to other yeasts, is indicative of their cold-adapted metabolism. Our results suggest that Patagonian yeasts may be considered an interesting source of essential PUFAs.
authors.affiliation: Laboratorio de Microbiología Aplicada y Biotecnología, INIBIOMA: Universidad Nacional del Comahue-CONICET, Rio Negro, Argentina. libkind@crub.uncoma.edu.ar
authors.forename: D
authors.initials: D
authors.lastname: Libkind
authors.forename: M T
authors.initials: MT
authors.lastname: Arts
authors.forename: M
authors.initials: M
authors.lastname: van Broock
mesh_terms: D000222:Adaptation, Physiological; D001118:Argentina; D002338:Carotenoids / Q000096:biosynthesis*; D003080:Cold Temperature; D003470:Culture Media / Q000494:pharmacology; D005227:Fatty Acids / Q000032:analysis*; D005231:Fatty Acids, Unsaturated / Q000032:analysis; D005618:Fresh Water / Q000382:microbiology; D019787:Linoleic Acid / Q000032:analysis; D019301:Oleic Acid / Q000032:analysis; D019308:Palmitic Acid / Q000032:analysis; D012248:Rhodotorula / Q000737:chemistry / Q000187:drug effects / Q000302:isolation & purification / Q000378:metabolism; D013045:Species Specificity; D014871:Water Microbiology; D015003:Yeasts / Q000737:chemistry* / Q000187:drug effects / Q000302:isolation & purification / Q000378:metabolism; D017962:alpha-Linolenic Acid / Q000032:analysis
chemical_list: D003470:Culture Media; D005227:Fatty Acids; D005231:Fatty Acids, Unsaturated; D017962:alpha-Linolenic Acid; D019301:Oleic Acid; D019308:Palmitic Acid; D002338:Carotenoids; D019787:Linoleic Acid