Results 21 to 30 of about 16,515 (204)

Peculiarities of pumpkin carotenoid composition ‘Konfetka’ variety, prospects of utilization

Овощи России, 2021
Relevance. Pumpkin is one of the most important source of carotenoids for humans: β- and α-carotene, lutein and zeaxanthin playing a fundamental role in providing twilight and color vision accordingly.Results.
N. A. Golubkina, G. A. Khimich, M. S. Antoshkina, U. D. Plotnikova, S. M. Nadezhkin, I. B. Korottseva   +5 more
doaj   +1 more source

The effect of modified eggs and an egg-yolk based beverage on serum lutein and zeaxanthin concentrations and macular pigment optical density: results from a randomized trial.

PLoS ONE, 2014
UnlabelledIncreasing evidence suggests a beneficial effect of lutein and zeaxanthin on the progression of age-related macular degeneration. The aim of this study was to investigate the effect of lutein or zeaxanthin enriched eggs or a lutein enriched egg-
Elton R Kelly, Jogchum Plat, Guido R M M Haenen, Aize Kijlstra, Tos T J M Berendschot   +4 more
doaj   +1 more source

A Brief Overview of Dietary Zeaxanthin Occurrence and Bioaccessibility

Molecules, 2020
As it exhibits no provitamin A activity, the dietary intake of zeaxanthin is not considered essential. However, its contribution to ocular health has long been acknowledged. Numerous publications emphasize the importance of zeaxanthin alongside lutein in
Cristina Tudor, Adela Pintea
doaj   +1 more source

The Effects of Lutein and Zeaxanthin Supplementation on Cognitive Function in Adults With Self-Reported Mild Cognitive Complaints: A Randomized, Double-Blind, Placebo-Controlled Study

Frontiers in Nutrition, 2022
BackgroundLutein and zeaxanthin are fat-soluble, dietary carotenoids with high concentrations in human brain tissue. There have been a number studies confirming an association between lutein and zeaxanthin and cognitive function.PurposeExamine the ...
Adrian L. Lopresti, Adrian L. Lopresti, Stephen J. Smith, Stephen J. Smith, Peter D. Drummond   +4 more
doaj   +1 more source

Effects of Zeaxanthin on Growth and Invasion of Human Uveal Melanoma in Nude Mouse Model

Journal of Ophthalmology, 2015
Uveal melanoma cells were inoculated into the choroid of nude mice and treated with or without intraocular injection of zeaxanthin. After 21 days, mice were sacrificed and the eyes enucleated.
Xiaoliang L. Xu, Dan-Ning Hu, Codrin Iacob, Adrienne Jordan, Sandipkumar Gandhi, Dennis L. Gierhart, Richard Rosen   +6 more
doaj   +1 more source

Mechanisms of selective delivery of xanthophylls to retinal pigment epithelial cells by human lipoproteins

Journal of Lipid Research, 2016
The xanthophylls, lutein and zeaxanthin, are dietary carotenoids that selectively accumulate in the macula of the eye providing protection against age-related macular degeneration.
Sara E. Thomas, Earl H. Harrison
doaj   +1 more source

Pulsed Electric Field-Assisted Enzymatic and Alcoholic–Alkaline Production of Porous Granular Cold-Water-Soluble Starch: A Carrier with Efficient Zeaxanthin-Loading Capacity

Foods, 2023
In this study, porous starch was modified using pulsed electric field (PEF) pretreatment and alcoholic–alkaline treatment to prepare porous granular cold-water-soluble starch (P-GCWSS).
Huanqing Lei, Zhongjuan Liao, Langhong Wang, Xinan Zeng, Zhong Han   +4 more
doaj   +1 more source

Quantification and purification of lutein and zeaxanthin recovered from distillers dried grains with solubles (DDGS)

Bioresources and Bioprocessing, 2018
Marigold petals, the current commercial source for lutein and zeaxanthin are harvested through a labor-intensive operation with downstream purification requiring multiple processing steps involving various harsh solvents.
Jinsha Li, Abigail S. Engelberth
doaj   +1 more source

Factors Differentiating the Antioxidant Activity of Macular Xanthophylls in the Human Eye Retina

Antioxidants, 2021
Macular xanthophylls, which are absorbed from the human diet, accumulate in high concentrations in the human retina, where they efficiently protect against oxidative stress that may lead to retinal damage.
Justyna Widomska, Wieslaw I. Gruszecki, Witold K. Subczynski   +2 more
doaj   +1 more source

Macular lutein and zeaxanthin are related to brain lutein and zeaxanthin in primates [PDF]

Nutritional Neuroscience, 2013
Xanthophyll pigments lutein and zeaxanthin cross the blood-retina barrier to preferentially accumulate in the macular region of the neural retina. There they form macular pigment, protecting the retina from blue light damage and oxidative stress. Lutein and zeaxanthin also accumulate in brain tissue.
Rohini, Vishwanathan, Martha, Neuringer, D Max, Snodderly, Wolfgang, Schalch, Elizabeth J, Johnson   +4 more
openaire   +2 more sources