xanthophyll


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Related to xanthophyll: carotene, anthocyanin, Carotenoids

xan·tho·phyll

(zan'thō-fil),
Oxygenated derivative of carotene; a yellow plant pigment, occurring also in egg yolk and corpus luteum.
Synonym(s): lutein (2) , luteol, luteole

xanthophyll

(zăn′thə-fĭl′)
n.
Any of several yellow carotenoid pigments, including lutein and zeaxanthin, produced by plants and green algae and visible in the leaves of deciduous trees in the autumn. Xanthophylls are also present in some animal tissues such as egg yolks.

xan′tho·phyl′lic, xan′tho·phyl′lous adj.

xan·tho·phyll

(zan'thō-fil)
Oxygenated derivative of carotene; a yellow plant pigment, occurring also in egg yolk and corpus luteum.
Synonym(s): lutein (2) .

xanthophyll

see CAROTENOIDS.

xanthophyll

yellow pigment in plants.
References in periodicals archive ?
Evaluation of mixed natural carotenoid products as xanthophyll sources for broiler pigmentation.
In diatoms, the transthylakoid proton gradient regulates the photoprotective non-photochemical fluorescence quen ching beyond its control on the xanthophyll cycle.
These xanthophyll pigments can flip-flop within minutes to convert from helper into protector pigments.
Enhanced employment of the xanthophyll cycle and thermal energy dissipation in spinach exposed to high light and N stress.
The diatom carotenoid Diadino that is active in the xanthophyll cycle could be transformed into Diato at high light to reduce the amount of energy reaching the photosynthetic reaction centres (Louda et al.
Role of the xanthophyll cycle in photoprotection elucidated by measurements of light-induced absorption changes, fluorescence and photosynthesis in Hedera canadiensis.
The fraction was expected to be violaxanthin, which is a xanthophyll with two epoxy groups having similar absorption spectra.
The results of their study add to existing observational evidence that the xanthophyll carotenoid lutein (and its stereoisomer, zeax-anthin) may delay cataract formation.
The results add to existing observational evidence that the xanthophyll carotenoid lutein (and its stereoisomer, zeaxanthin) may delay cataract formation.
This may simply imply that supplementation with extra lutein is not necessary because it is a readily available xanthophyll in many vegetables.
Cool night temperatures trap the sugars and other chemical compounds in the leaves - carotene, xanthophyll, anthocyanin and tannins.