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A review of methods for determining pesticide residues, contaminants and adulterants in fats and oils

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Journal of the American Oil Chemists Society

Abstract

Sensitive chromatographic methods are available for determining chlorinated pesticide residues and chick edema factor contaminants in fats and oils. Determination of chlorinated pesticide residues in fats and oils generally involves acetonitrile extraction, Florisil column cleanup, and analysis by electron capture gasliquid chromatography (ECGLC). However, other procedures are available including dimethyl sulfoxide extraction and sweep codistillation. Sensitive screening tests for chick edema factor involve alumina column fractionation of isolated unsaponifiable matter, sulfuric acid cleanup, and examination by ECGLC. Admixtures of animal and vegetable fats are detected by the gasliquid chromatography (GLC) of isolated sterols, and individual vegetable oils can be characterized by GLC analysis of the sterols as well as of the other unsaponiflable constituents.

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Authors and Affiliations

  1. Division of Food Chemistry, Food and Drug Administration, Department of Health, Education and Welfare, Washington, D. C.

    David Firestone

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  1. David Firestone
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Firestone, D. A review of methods for determining pesticide residues, contaminants and adulterants in fats and oils. J Am Oil Chem Soc 45, 210A–249A (1968). https://doi.org/10.1007/BF02652432

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