Gas-liquid chromatography of triglycerides from erucic acid oils and fish oils

Abstract

By critically selecting optimum operating conditions, quantitative gas-liquid chromatography of triglycerides has been extended to molecules containing substantial amounts of C20, C22, and C24 fatty acids. The triglycerides of four erucic acid oils (water cress, rapessed, nasturtium, and Lunaria annua) and two fully hydrogenated fish oils (menhaden and tuna) have been quantitatively analyzed by this technique. The average fatty acid chain length calculated from the triglyceride composition of each oil agreed closely with that determined by GLC of its respective methyl esters. Several conclusions about the triglyceride composition of the fats analyzed are discussed. © 1966 American Oil Chemists' Society.