FATTY ACID COMPOSITION OF NORMAL MINK TISSUES

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Abstract
Lipids, extracted from the adrenals, brain, erythrocytes, heart, kidney, liver, plasma, and spleen of normal healthy female mink, were transesterified with 1% sulphuric acid in methanol, and the resulting methyl esters were analyzed by gas–liquid chromatography after purification by thin-layer chromatography. All of the tissues examined contained higher concentrations of unsaturated than of saturated acids, the highest levels of unsaturated acids occurring in the lipids of heart, adrenals, and plasma, and of the essential fatty acids (ω6 series, with six carbon atoms after last double bond) in plasma, erythrocyte, and kidney lipids. The fatty acid compositions of mink tissues resemble those reported in the literature for the rat; detailed comparisons are not possible because of the known influence of dietary factors on tissue fatty acids.