Determination of Fatty Acid Composition in Some Pig Fats by Gas Chromatography.

Abstract

The fatty acid composition in back fat and liver lipids of pigs fed [gamma]-irradiated and non-irradiated potatoes, respectively, were investigated by gas chromatography using an argon-Pye chromatograph. The best separation of the fatty acid methyl esters was achieved with diethylene glycol succinate polyester as stationary phase. A suitable analysis temperature was 164[degree]C. Diethylene glycol adipate did not give a satisfactory separation. The diet containing -irradiated potatoes apparently did not cause any differences of the fatty acid composition in the pig fats as compared with the diet containing control potatoes.