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

Naomi Shibasaki-Kitakawa, Hideto Kato, Atsushi Takahashi, Toshikuni Yonemoto

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)389-394
Number of pages6
JournalJAOCS, Journal of the American Oil Chemists' Society
Volume81
Issue number4
DOIs
Publication statusPublished - 2004 Apr

Keywords

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

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry

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