Fatty acid composition of lipids from mushrooms belonging to the family Boletaceae |
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| Authors: | Karine PEDNEAULT Paul ANGERS Andr GOSSELIN Russell J TWEDDELL |
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| Institution: | aCentre de recherche en horticulture, Pavillon de l'Envirotron, Université Laval, Québec, QC, Canada, G1K 7P4;bInstitut des nutraceutiques et des aliments fonctionnels, Université Laval, Québec, QC, Canada, G1K 7P4;cDépartement de sciences des aliments et de nutrition, Université Laval, Québec, QC, Canada, G1K 7P4 |
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| Abstract: | The non-polar lipid content and fatty acid (FA) composition of 11 mushroom species of the family Boletaceae were determined. The non-polar lipid content ranged from 2.0 (Leccinum aurantiacum and Boletus erythropus) to 5.4 % (w/w) d.w. (Suillus grevillei) with an average value of 2.9 %. More than 25 different FAs were found in the mushroom lipids. Unsaturated FAs, mainly linoleic and oleic acids, accounted for about 83 % of the total FAs, while palmitic acid was the main saturated FA. Some FAs are identified for the first time in Boletaceae and in higher Basidiomycetes (cis-11,12-methyleneoctadecanoic acid, 7-cis,10-cis hexadecadienoic) or in fungi (cis-11,12-methyleneoctadecanoic acid). There were significant differences (P < 0.05) in the contents of specific FAs between mushroom species. |
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| Keywords: | Boletus Leccinum Linoleic acid Oleic acid Palmitic acid Suillus Tylopilus |
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