Thermal Decomposition of Methyl Linoleate and Methyl Linolenate Hydroperoxides Analyzed by Capillary Gas Chromatography
Much work has been reported on the volatile oxidation products of unsaturated fats because they cause rancidity in foods and cellular damage in the body. Decomposition of fatty ester hydroperoxides creates a wide range of carbonyl compounds, hydrocarbons, furans, and other materials that contribute to flavor deterioration of foods and that are implicated in biological oxidation. Interaction of some of these degradation products with DNA, proteins, and enzymes may be involved in cell-damaging reactions.2–4 Although fatty acid hydroperoxides are the recognized precursors of volatile secondary products, relatively little information is available on the mechanism of their decorposition. New information on the volatile lipid oxidation products is needed to better evaluate precursors of oxidative deterioration in lipid-containing foods and to understand the biological significance of lipid peroxidation.
KeywordsMethyl Linoleate Fatty Acid Hydroperoxide Linolenate Hydroperoxide Dynamic Headspace Volatile Decomposition Product
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