Fatty acid composition of cold-adapted carotenogenic basidiomycetous yeasts

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 a...

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Published inRevista argentina de microbiología Vol. 40; no. 4; pp. 193 - 197
Main Authors Libkind, D, Arts, M T, van Broock, M
Format Journal Article
LanguageEnglish
Published Argentina 01.10.2008
Subjects
Adaptation, Physiological
alpha-Linolenic Acid - analysis
Argentina
Carotenoids - biosynthesis
Cold Temperature
Culture Media - pharmacology
Fatty Acids - analysis
Fatty Acids, Unsaturated - analysis
Fresh Water - microbiology
Linoleic Acid - analysis
Oleic Acid - analysis
Palmitic Acid - analysis
Rhodotorula - chemistry
Rhodotorula - drug effects
Rhodotorula - isolation & purification
Rhodotorula - metabolism
Species Specificity
Water Microbiology
Yeasts - chemistry
Yeasts - drug effects
Yeasts - isolation & purification
Yeasts - metabolism
Argentina
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Summary: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.
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ISSN:0325-7541