Oxidation kinetics of β‐carotene in oleic acid solvent with addition of an antioxidant, α‐tocopherol

Oxidation experiments with β‐carotene were performed in oleic acid solvent with addition of an antioxidant, α‐tocopherol. A kinetic model was proposed based on a reaction mechanism consisting of the oxidation of β‐carotene, oleic acid, and α‐tocopherol; the antioxidation reactions of β‐carotene and...

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Bibliographic Details
Published in:Journal of the American Oil Chemists' Society 2004-04, Vol.81 (4), p.389-394
Main Authors: Shibasaki‐Kitakawa, Naomi, Kato, Hideto, Takahashi, Atsushi, Yonemoto, Toshikuni
Format: Article
Language:English
Subjects:
Antioxidant
Biological and medical sciences
Fat industries
Food industries
Fundamental and applied biological sciences. Psychology
kinetic model
oleic acid
oxidation
α‐tocopherol
β‐carotene
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Summary:Oxidation experiments with β‐carotene were performed in oleic acid solvent with addition of an antioxidant, α‐tocopherol. A kinetic model was proposed based on a reaction mechanism consisting of the oxidation of β‐carotene, oleic acid, and α‐tocopherol; the antioxidation reactions of β‐carotene and oleic acid by α‐tocopherol; the cross‐reaction of β‐carotene and oleic acid; and the radical‐exchange reaction of β‐carotene and α‐tocopherol. The model quantitatively described the oxidation behavior of β‐carotene over a wide range of temperatures, oxygen compositions, and initial antioxidant concentrations. The model simulated well the time over which β‐carotene was almost totally consumed under practical storage conditions at room temperature in air.
ISSN:0003-021X
1558-9331
DOI:10.1007/s11746-004-0911-x