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Plant polyphenols: free radical scavengers or chain-breaking antioxidants?
Abstract
There is increasing interest in the biological effects of tea- and wine-derived polyphenols and many studies in vitro and in vivo are demonstrating their antioxidant properties. Tea is a major source of dietary polyphenols and an even richer source of the flavanols, the catechins and catechin/gallate esters. Although there are limited studies on the bioavailability of the polyphenols, the absorption of flavanols in humans has been shown. The studies described in this chapter discuss the relative antioxidant potentials of the polyphenolic flavonoids in vitro against radicals generated in the aqueous phase in comparison with their relative effectiveness as antioxidants against propagating lipid peroxyl radicals, and how their activity influences that of α-tocopherol in low-density lipoproteins exposed to oxidative stress.
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Cited by
Structure-antioxidant activity relationships of flavonoids and phenolic acids
Rice-Evans, C. A., Miller, N. J., & Paganga, G. (1996) · Free Radical Biology and Medicine · doi:10.1016/0891-5849(95)02227-9 · Cited by 9,085
Self-citationFlavonoids: antioxidants or signalling molecules?
Williams, R. J., Spencer, J. P. E., & Rice-Evans, C. (2004) · Free Radical Biology and Medicine · doi:10.1016/j.freeradbiomed.2004.01.001 · Cited by 2,016
Self-citationThe neuroprotective potential of flavonoids: a multiplicity of effects
Vauzour, D., Vafeiadou, K., Rodriguez-Mateos, A., Rendeiro, C., & Spencer, J. P. E. (2008) · Genes & Nutrition · doi:10.1007/s12263-008-0091-4 · Cited by 559
Lopes, G. K. B., Schulman, H. M., & Hermes-Lima, M. (1999) · Biochimica et Biophysica Acta (BBA) - General Subjects · doi:10.1016/s0304-4165(99)00117-8 · Cited by 476
Antioxidant properties of catechins: Comparison with other antioxidants
Grzesik, M., Naparło, K., Bartosz, G., & Sadowska-Bartosz, I. (2018) · Food Chemistry · doi:10.1016/j.foodchem.2017.08.117 · Cited by 478
Metadata
- Authors
- Rice-Evans, C.
- Venue
- Biochemical Society Symposia
- Publisher
- Portland Press Ltd.
- Published
- 1995-11-01
- Volume
- 61
- Pages
- 103-116
- ISSN
- 0067-8694 (ISSN-L)
- 1744-1439
- OpenAlex
- W2139937589
- Cited by
- 201
- References
- 0
- FWCI
- 2.62
- Type
- journal article
- Language
- en
- Open access
- closed
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