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Deinoxanthin: A new carotenoid isolated from Deinococcus radiodurans

✍ Scribed by Laurant Lemee; Evelyne Peuchant; Michel Clerc; Martin Brunner; Hanspeter Pfander

Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
525 KB
Volume
53
Category
Article
ISSN
0040-4020

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✦ Synopsis

We have previously demonstrated that carotenoids which support the color of the red pigmented strains of Deinococcus radiodurans could be responsible for the antioxidant activity of these bacteria submitted to hydroxy radicals. Here we report on the isolation and identification of the major carotenoid of this bacterium. Based on L&'/Vi+, 'H NMR-and mass spectra as well as the chemical properties the carotenoid was identified as (all-E)-2,l'-dihydro~-3',4'-didehydro-l',2'-dihydro-~,~carotene-4-one 1. This carotenoid has never been isolated before and we propose the name deinoxanthin for this new compound.

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