ICCAS OpenIR
Antioxidant synergism between carotenoids in membranes. Astaxanthin as a radical transfer bridge
Liang, Jun2,3; Tian, Yu-Xi2; Yang, Fan2; Zhang, Jian-Ping2; Skibsted, Leif H.1
2009-08-15
Source PublicationFOOD CHEMISTRY
ISSN0308-8146
Volume115Issue:4Pages:1437-1442
AbstractIn phosphatidyl choline liposomes, carotenoids increased the lag phase for oxidation initiated by the water soluble azo-initiator AAPH (zeaxanthin > lycopene > astaxanthin > beta-carotene) and more significantly for the oxidation initiated by the lipid soluble AMVN (zeaxanthin > astaxanthin > lycopene > beta-carotene). For combination of astaxanthin with beta-carotene or astaxanthin with lycopene, significant antioxidant synergism was observed for initiation of oxidation in the lipid phase. Astaxanthin anchored in the water/lipid interface is suggested to scavenge radicals in the interface and transfer an electron from a non-polar and more reducing carotenoid in the membrane interior. Spectroscopic detection of steady state concentration of carotenoid radical cations during electrochemical oxidation of carotenoid mixtures confirmed conversion of astaxanthin radical cations to radical cations of other carotenoids. Decrease in membrane fluidity as measured by fluorescence anisotropy was most significant for astaxanthin (and zeaxanthin), which may further hamper diffusion and bimolecular reactions of radicals, with an antioxidative effect. (C) 2009 Elsevier Ltd. All rights reserved.
KeywordAntioxidation Carotenoid Synergistic Protection Membrane Fluidity
DOI10.1016/j.foodchem.2009.01.074
Indexed BySCI
Language英语
WOS IDWOS:000265476500040
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68110
Collection中国科学院化学研究所
Corresponding AuthorZhang, Jian-Ping
Affiliation1.Univ Copenhagen, Dept Food Sci, Fac Life Sci, DK-1058 Frederiksberg C, Denmark
2.Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China
3.Chinese Acad Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Liang, Jun,Tian, Yu-Xi,Yang, Fan,et al. Antioxidant synergism between carotenoids in membranes. Astaxanthin as a radical transfer bridge[J]. FOOD CHEMISTRY,2009,115(4):1437-1442.
APA Liang, Jun,Tian, Yu-Xi,Yang, Fan,Zhang, Jian-Ping,&Skibsted, Leif H..(2009).Antioxidant synergism between carotenoids in membranes. Astaxanthin as a radical transfer bridge.FOOD CHEMISTRY,115(4),1437-1442.
MLA Liang, Jun,et al."Antioxidant synergism between carotenoids in membranes. Astaxanthin as a radical transfer bridge".FOOD CHEMISTRY 115.4(2009):1437-1442.
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