A Rigorous Kinetic Model for β-Carotene Oxidation in the Presence of an Antioxidant, α-Tocopherol

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16 Citations (Scopus)

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 languageEnglish
Pages (from-to)1241-1247
Number of pages7
JournalJAOCS, Journal of the American Oil Chemists' Society
Volume80
Issue number12
DOIs
Publication statusPublished - 2003 Dec

Keywords

  • Antioxidant
  • Kinetic model
  • Oxidation
  • α-tocopherol
  • β-carotene

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry

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