title: Reaction and Scavenging Mechanism of β-Carotene and Zeaxanthin with Reactive Oxygen Species.
abstract: In order to investigate chemical scavenging mechanism of singlet oxygen, superoxide anion radical, and hydroxyl radical by carotenoids, reaction products obtained by reacting β-carotene or zeaxanthin with singlet oxygen, superoxide anion radical, and hydroxyl radical were analyzed by LC/PDA ESI-MS, and ESR spectrometry. β-Carotene endoperoxides were identified as the major reaction products of β-carotene and singlet oxygen, while β-carotene epoxides were the major reaction products of β-carotene and superoxide anion or hydroxyl radical. Similar results to those for β-carotene were obtained with zeaxanthin.
authors.affiliation: Institute of Health Sciences, Ezaki Glico Co., Ltd.
authors.forename: Azusa
authors.initials: A
authors.lastname: Nishino
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Yasui
authors.forename: Takashi
authors.initials: T
authors.lastname: Maoka
mesh_terms: D016166:Free Radical Scavengers / Q000737:chemistry*; D015394:Molecular Structure; D017382:Reactive Oxygen Species / Q000737:chemistry*; D065146:Zeaxanthins / Q000737:chemistry*; D019207:beta Carotene / Q000737:chemistry*
chemical_list: D016166:Free Radical Scavengers; D017382:Reactive Oxygen Species; D065146:Zeaxanthins; D019207:beta Carotene