xanthophyll


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Related to xanthophyll: carotene, anthocyanin, Carotenoids

xanthophyll

[′zan·thə‚fil]
(biochemistry)
C40H56O2 Any of a group of yellow, alcohol-soluble carotenoid pigments that are oxygen derivatives of the carotenes, and are found in certain flowers, fruits, and leaves. Also known as carotenol; lutein.
References in periodicals archive ?
Several studies published in 2017--one year before the findings just discussed--add support to the connection between xanthophylls and brain function.
The significant difference in the content of xanthophyll and carotenoids fresh and dry samples between species of the aquatic plants studied due to physiological state and environment condition aquatic (Furuya, 2010; Zhou et al., 2010), although drying process its components are susceptible to light and high temperatures because have long-chain liposoluble structures with conjugated double-bonds (Ortiz et al., 2006; Abdel-Aal et al., 2013).
The macular carotenoids, or xanthophylls, lutein (L), zeaxanthin (Z), and mesozeaxanthin (MZ) are found throughout the human retina but are particularly concentrated in and around the fovea [1].
However, CGM is considered as a very good and chief source of carotenoids, especially yellow carotenoids ([alpha]- and [beta]-carotenes) and xanthophylls [9].
Quantum GLO[TM] Y is a microemuslified pigment that belongs to the xanthophyll class and from our earlier studies [8,9], the bioavailability of the carotenoids prepared using this system was significantly better than other carotenoid preparation due to the increased ratio of surface area to volume of the smaller carotenoid structures after the emulsification (size reduction from 20 [micro]m to 0.25 [micro]m that is 80 order of magnitude smaller).
If progression continues and the foveal retinal level becomes raised to the level of the perifoveal area, the yellow dot of xanthophyll pigment changes to a doughnut-shaped yellow ring.
summarizes the latest knowledge about the role of plant-derived xanthophyll, lutein, as an antioxidant and anti-inflammatory agent in animal model and human, with special focus on newborns.
Astaxanthin is natural occurring xanthophyll. Only one study described its effects on human male fertility.
This index considers xanthophyll changes related to water stress but also generates a normalization considering chlorophyll content and canopy leaf area reduction which is mainly affected by water stress [62].
The diet composition (Table 1) demonstrated that the control treatment (SM+SO) had lower inclusion of corn and consequently a smaller supply of pigments (xanthophyll and carotene) through the diet, which may explain the lighter coloring for yolk (Yannakopoulos, Tserveni-Gousi, & Christaki, 2005).
Diurnal variation of gas exchange, chlorophyll fluorescence and xanthophyll cycle components of maize hybrids released in different years.