Results 31 to 40 of about 16,041 (278)

Stability of B vitamins, vitamin E, xanthophylls and flavonoids during germination and maceration of sorghum (Sorghum bicolor L.).

open access: yesFood Chemistry, 2020
The impact of maceration and germination on the concentration of bioactive compounds still needs to be evaluated. The stability of B complex vitamins (thiamine, riboflavin, pyridoxine), vitamin E (α, β, γ, δ tocopherols and tocotrienols), xanthophylls ...
S. Pinheiro   +6 more
semanticscholar   +1 more source

Can Xanthophyll-Membrane Interactions Explain Their Selective Presence in the Retina and Brain?

open access: yesFoods, 2016
Epidemiological studies demonstrate that a high dietary intake of carotenoids may offer protection against age-related macular degeneration, cancer and cardiovascular and neurodegenerative diseases.
Justyna Widomska   +2 more
doaj   +1 more source

Photochemical behavior of xanthophylls in the recombinant photosystem II antenna complex, CP26

open access: yes, 2001
The steady state absorption and fluorescence spectroscopic properties of the xanthophylls, violaxanthin, zeaxanthin, and lutein, and the efficiencies of singlet energy transfer from the individual xanthophylls to chlorophyll have been investigated in ...
Roberta Croce   +15 more
core   +3 more sources

Absorption and cutaneous deposition of yellow pigment in male and female broilers in response to different levels of xanthophylls from Tagetes erecta

open access: yesAustral Journal of Veterinary Sciences, 2017
To determine the saturation point of absorption and cutaneous deposition of yellow xanthophylls (XA) in broilers, two hundred and sixteen Ross 308 chickens (108 males and 108 females) were sorted by sex and randomly assigned to 6 dietary treatments ...
MA Tepox-Pérez   +5 more
doaj   +1 more source

Partial quantification of pigments extracted from the zooxanthellate octocoral Sinularia flexibilis at varying irradiances [PDF]

open access: yes, 2010
Chlorophyll-a (chl-a) and carotenoid pigments of the zooxanthellate octocoral Sinularia flexibilis were analyzed using high performance liquid chromatography following exposure to three light intensities for over 30 days. From the coral fragments located
Lamers, P.P., Khalesi, M.K.
core   +1 more source

Study of factors controlling the photoprotection capacity of the thylakoid membrane [PDF]

open access: yes, 2010
PhDPlants require light for the process of photosynthesis, but excess of light absorption can cause photooxidative damage. To avoid this damage, plants have evolved a photoprotective mechanism to dissipate excess light energy as heat in a process ...
Zia, Ahmad
core   +4 more sources

Plasma Carotenoids and Biomarkers of Oxidative Stress in Patients with prior Head and Neck Cancer

open access: yesBiomarker Insights, 2009
Diets high in fruits and vegetables are generally believed protective against several chronic diseases. One suggested mechanism is a reduction in oxidative stress.
Kathryn J. Hughes   +5 more
doaj   +2 more sources

Effect of paprika xanthophyll supplementation on oxygen uptake in athletes: a randomized, double-blind, placebo-controlled study

open access: yesJournal of Physical Fitness and Sports Medicine, 2018
Xanthophylls have been attracting attention as phytochemicals with antioxidant activity and various beneficial effects demonstrated by randomized clinical trials.
Takashi Ichihara   +7 more
doaj   +1 more source

Use of natural pigments obtained from cyanobacteria and algae

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii, 2022
The article reflects data on the use of cyanobacteria pigments in cosmetology. One of the sources of natural antioxidants are the pigments obtained from various algae and cyanobacteria. An essential source for extracting pigments and biologically active
Alina Trofim, Anastasia Verdeș
doaj   +1 more source

In Vitro Inhibition of Human UDP-Glucuronosyl-Transferase (UGT) Isoforms by Astaxanthin, β-Cryptoxanthin, Canthaxanthin, Lutein, and Zeaxanthin: Prediction of in Vivo Dietary Supplement-Drug Interactions

open access: yesMolecules, 2016
Despite the widespread use of the five major xanthophylls astaxanthin, β-cryptoxanthin, canthaxanthin, lutein, and zeaxanthin as dietary supplements, there have been no studies regarding their inhibitory effects on hepatic UDP-glucuronosyltransferases ...
Yu Fen Zheng   +7 more
doaj   +1 more source

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