Progressive Effect of Water on Prevention of β-Carotene Oxidation in Biphasic Oil–Water System with Addition of an Antioxidant, α-Tocopherol

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Masahiko Murakami¹  Naomi Shibasaki-Kitakawa¹  Hideto Kato¹  Masahiko Noritsune¹  Abdalla A. Elbashir¹  Toshikuni Yonemoto¹ 

[1] Department of Chemical Engineering, Tohoku University

关键词: Antioxidant;    Biphasic Oil–Water System;    Kinetic Model;    α-Tocopherol;    β-Carotene Oxidation;   

DOI  :  10.1252/jcej.08we020

来源: Maruzen Company Ltd

【 摘 要 】

References(16)Cited-By(1)Oxidation experiments of β-carotene in the presence of α-tocopherol were conducted in a biphasic oil–water system having a definite interfacial area. The induction period in which the β-carotene concentration slowly decreased was about 1.6 times longer than that in the single oil phase system when the initial α-tocopherol concentrations were the same. The existence of the water phase suppressed the α-tocopherol consumption, resulting in a delay in the progress of the β-carotene oxidation. A kinetic model was constructed by modifying the oxidation and antioxidation mechanisms of β-carotene in the single oil phase and incorporating the reaction of the α-tocopherol peroxyl radical with the oxonium ion at the oil–water interface. The model quantitatively described the oxidation behavior of β-carotene in the biphasic system over wide ranges of temperature, initial α-tocopherol concentration and interfacial area.

【 授权许可】

Unknown