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FEBS Lett. 1996 Apr 22;384(3):240-2.

Antioxidant activities of carotenes and xanthophylls.

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Free Radical Research Group, UMDS-Guy's Hospital, London, UK.


The purpose of this study was to assess the relative antioxidant activities of a range of carotenes and xanthophylls through the extent of their abilities to scavenge the ABTS(.+) radical cation. The results show that the relative abilities of the carotenoids to scavenge the ABTS(.+) radical cation are influenced by the presence of functional groups with increasing polarities, such as carbonyl and hydroxyl groups, in the terminal rings, as well as by the number of conjugated double bonds.

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