xanthophyll

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Related to Xanthophylls: chlorophyll b, Phycobilins

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
Farlex Partner Medical Dictionary © Farlex 2012

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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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) .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

xanthophyll

see CAROTENOIDS.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Effect of domestic cooking methods on egg yolk xanthophylls. J Agr Food Chem 2012.
Also, blood levels of these xanthophylls in older adults are closely associated with better cognitive, memory, and executive (prioritizing and decision-making) function.
A possible reason could be that the diet of the male subjects resulted, on average, in a higher intake of xanthophylls than for the female subjects, but this was not assessed in this study.
Dogs were fed with dry extruded experimental diets (Table 1): a control diet or a diet supplemented with 45g [kg.sup.-1] active xanthophylls (lutein sourcewith 76.7% lutein and 5.2 zeaxanthin) extracted from marigold and rosemary, totalling eight replicates per treatment.
The decline of Fo indicated that thermal dissipation that was dependent on xanthophyll cycle enhanced (Demmig et al., 1987).
Marcus, "The macular xanthophylls," Survey of Ophthalmology, vol.
The results found supplementation significantly improved the plasma antioxidant capacity, circulating macular xanthophyll levels, and the optical density of the macular pigment.
Macular xanthophylls and to-3 long-chain polyunsaturated fatty acids in age-related macular degeneration: a randomized trial.
[20] AOAC official method 970.64, "Carotenes and xanthophylls in dried plant materials and mixed feeds," Spectrophotonetris Method First Action 1970 Final Action, 1974.
The durum endosperm contains about twice the concentration of xanthophylls or luteins (not carotene) pigments when compared to that of bread wheat [11, 1].
So phytoplankton have evolved other types of special pigments, including ones called xanthophylls. In land plants, these are the yellow-colored pigments that remain in leaves in autumn after the green chlorophyll has gone away.