Cited by 822Antioxidant Activity and Oxidative StressPhytochemicals and Antioxidant ActivitiesFree Radicals and Antioxidants

Antioxidant and Prooxidant Properties of Carotenoids

Young, Andrew J., Lowe, Gordon M.·2001·Archives of Biochemistry and Biophysics

Abstract

The ability of dietary carotenoids such as beta-carotene and lycopene to act as antioxidants in biological systems is dependent upon a number of factors. While the structure of carotenoids, especially the conjugated double bond system, gives rise to many of the fundamental properties of these molecules, it also affects how these molecules are incorporated into biological membranes. This, in turn, alters the way these molecules interact with reactive oxygen species, so that the in vivo behavior may be quite different from that seen in solution. The effectiveness of carotenoids as antioxidants is also dependent upon their interaction with other coantioxidants, especially vitamins E and C. Carotenoids may, however, lose their effectiveness as antioxidants at high concentrations or at high partial pressures of oxygen. It is unlikely that carotenoids actually act as prooxidants in biological systems; rather they exhibit a tendency to lose their effectiveness as antioxidants.

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Crossref · 10.1006/abbi.2000.2149

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56 of 56 references verified0 citation errors · 0 not checkable

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  • The key factor affecting the switch from antioxidant to prooxidant properties of carotenoids is the partial pressure of oxygen, typically high in the lungs.

    “The key factor affecting the switch from antioxidant to prooxidant properties of carotenoids has been attributed to the partial pressure of oxygen, typically high in the lungs.”
  • Under high partial pressure of oxygen, carotenoid radicals (Car·) from hydrogen abstraction may further react with dioxygen.

    “Under conditions of high partial pressure of oxygen, radicals of carotenoids, Car·, originating from the reaction of ROS with a carotenoid molecule by hydrogen abstraction may further react with dioxygen according to the reaction (Young and Lowe 2001; Shin et al. 2020)24”

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Authors
Young, A. J., & Lowe, G. M.
Affiliations
Liverpool John Moores University (GB)
Corresponding author
Young, Andrew J.
Venue
Archives of Biochemistry and Biophysics
Publisher
Elsevier BV
Published
2001-01
Volume
385
Issue
1
Pages
20-27
ISSN
0003-9861 (ISSN-L)
OpenAlex
W2003315786
Cited by
822
References
56
Citations by year
2026: 17 · 2025: 31 · 2024: 28 · 2023: 28 · 2022: 38 · 2021: 35 · 2020: 44 · 2019: 41 · 2018: 38 · 2017: 26 · 2016: 35 · 2015: 47 · 2014: 37 · 2013: 35 · 2012: 40
FWCI
2.89
Type
journal article
Language
en
Open access
closed
Locations
  • Archives of Biochemistry and Biophysics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
  • Physical Sciences › Chemistry › Organic Chemistry › Free Radicals and Antioxidants
Keywords
carotenoids, beta-carotene, lycopene, antioxidant activity, pro-oxidant activity, reactive oxygen species, biological membranes, conjugated double bonds, vitamin E, vitamin C, oxygen partial pressure
MeSH terms
Lycopene, Animals, Antioxidants, Ascorbic Acid, Carotenoids, Cell Membrane, Diet, Dose-Response Relationship, Drug, Free Radicals, Humans, Models, Chemical, Oxygen, Vitamin E, beta Carotene

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