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Component fatty acids and composition of some oils and fats

  • Technical
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Journal of the American Oil Chemists Society

Abstract

Nineteen different samples of oils and fats have been examined for their component acids and composition by gas-liquid chromatography. Under programmed-temperature operations, the temperatures at which different components start to elute bear a straight-line relationship with their respective carbon numbers. Chromatograms, under programmed-temperature conditions, of methyl esters from such oils as coconut, groundnut, mustard, etc., are used for identifying the components of an unknown oil by comparing its chromatogram taken under nearly identical conditions. For confirmatory identifications, such plots as logarithm of retention times versus carbon numbers for saturated acids (14:0 to 24:0), monoenoic acids (14:1 to 24:1), and dienoic acids (18:2 to 24:2), under isothermal conditions, have also been used. Some new fatty acids, noted for the first time in traditional oils, are 15:0 in cottonseed oil, 20:1 in sesame oil, 22:0 in soybean oil, and 24:2 in mustard oil. Odd-carbon chain acids from 11∶0 to 23:0 have been observed in such vegetable oils as peanut germ, rice bran, andMesua ferrea. Fatty acid composition by GLC for new samples like peanut lecithin, peanut germ oil,Myristica attenuata, Myristica kanarica, Myristica magnifica, Mesua ferrea, Vateria indica, Schleichera trijuga, and shark-liver stearine are presented. Industrial utilization of these new oils and fats is discussed.

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Author notes

  1. B. Sreenivasan

    Present address: Research and Development Center, Lever Brothers Company, Edgewater, N.J.

Authors and Affiliations

  1. Research Laboratory, Tata Oil Mills Company Ltd., Bombay, India

    B. Sreenivasan

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  1. B. Sreenivasan
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Sreenivasan, B. Component fatty acids and composition of some oils and fats. J Am Oil Chem Soc 45, 259–265 (1968). https://doi.org/10.1007/BF02652423

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  • DOI: https://doi.org/10.1007/BF02652423

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