A kinetic model for co‐oxidation of β‐carotene with oleic acid

Oxidation experiments with β‐carotene in a lipid solution were conducted under various conditions of temperature, oxygen composition, and lipid content. The experimental results were compared with those using n‐decane reported previously. Under all conditions, the oxidation rate in oleic acid was faster than that in n‐decane. A novel kinetic model for the co‐oxidation of carotene with a lipid was proposed based on the reaction mechanism, which consisted of the oxidation of carotene, the oxidation of oleic acid, and the cross‐reaction of carotene with oleic acid. The model quantitatively described the oxidation behavior of carotene over a wide range of temperatures, oxygen compositions, and lipid contents.