Lipid Oxidation. Part. 1. Effect of Free Carboxyl Group on the Decomposition of Lipid Hydroperoxide

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Abstract
Hydroperoxido butyl oleate was decomposed by heating in excess palmitic acid at 60–120 °C. The decomposition followed the kinetics of a first order reaction with formation of both monomeric and oligomeric secondary products. The proportions of oligomers slightly increased with increasing reaction temperature and decreased with increasing concentration of hydroperoxide. The activation energy was 70.4 kJ/mol ± 4.7 kJ/mol. The decomposition of hydroperoxides proceeded partially by monomolecular cleavage, partially by formation of esters with palmitic acid.