Abstract
Oxidation of β-carotene in an inert solvent, n-decane, in the presence of various concentrations of the antioxidant α-tocopherol was studied. The progress of carotene oxidation was suppressed as long as the tocopherol remained in the system. A rigorous kinetic model for carotene oxidation in the presence of an antioxidant was proposed based on a reaction mechanism in which not only the antioxidation but also the co-oxidation and radical-exchange reaction of tocopherol with carotene were incorporated. The model quantitatively described the oxidation behavior of carotene over a wide range of temperatures, oxygen compositions, and initial antioxidant concentrations.
Original language | English |
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Pages (from-to) | 1241-1247 |
Number of pages | 7 |
Journal | JAOCS, Journal of the American Oil Chemists' Society |
Volume | 80 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2003 Dec |
Keywords
- Antioxidant
- Kinetic model
- Oxidation
- α-tocopherol
- β-carotene
ASJC Scopus subject areas
- Chemical Engineering(all)
- Organic Chemistry