Results 21 to 30 of about 108,638 (302)

Effect of Dietary Structure on Bioavailability and Antioxidant Activity of Citrus Carotenoids [PDF]

open access: yesShipin Kexue, 2023
In order to explore the effect of different dietary structures (normal diet, high-protein diet, high-fat diet, high-sugar diet) on the bioavailability and antioxidant activity of citrus carotenoids, the changes in the carotenoid content, ferric reducing ...
LI Mengjie, PAN Siyi
doaj   +1 more source

Plasma concentrations of carotenoids and vitamin C are better correlated with dietary intake in normal weight than overweight and obese elderly subjects. [PDF]

open access: yes, 2007
Carotenoid and vitamin C intakes, assessed by FFQ, have been positively associated with plasma concentrations in different populations. However, the influence of BMI on these associations has not been explored in detail.
Young, Ian S   +11 more
core   +1 more source

Fossil carotenoids and paleolimnology of meromictic Mahoney Lake, British Columbia, Canada [PDF]

open access: yes, 1993
Vertical distribution of fossil carotenoids in a sediment core from meromictic Mahoney Lake was studied. Besides okenone and demethylated okenone, lutein and zeaxanthin and-carotene isomers were identified.
Sandmann, Gerhard   +7 more
core   +1 more source

Marine Carotenoids [PDF]

open access: yes, 2021
Carotenoids represent a large group of isoprenoid structures with many different structural characteristics and biological activities. They are the most important of the naturally occurring pigments and are responsible for the various colors of different

core   +3 more sources

Ruthenium porphyrin-ß-cyclodextrin complexes as supramolecular enzyme models for regioselective cleavage of carotenoids [PDF]

open access: yes, 2006
All naturally occurring vitamin A derives from enzymatic oxidative cleavage of β,β-carotene or other carotenoids with pro-vitamin A activity. Two metabolic pathways of β,β-carotene to retinal (vitamin A aldehyde) have been proposed: the central cleavage ...
Wang, Hao
core   +1 more source

Structures and functions of carotenoids bound to reaction centers from purple photosynthetic bacteria [PDF]

open access: yes, 2006
The photoprotective function of 15,15'-cis-carotenoids bound to the photosynthetic reaction centers (RCs) of purple bacteria has been studied using carotenoids reconstituted into carotenoidless RCs from Rhodobacter sphaeroides strain R26.1.
Hashimoto, H.   +10 more
core   +1 more source

Stable isotope dilution techniques for assessing vitamin A status and bioefficacy of provitamin A carotenoids in humans. [PDF]

open access: yes, 2005
Vitamin A deficiency is a major global public health problem. Among the variety of techniques that are available for assessing human vitamin A status, evaluating the provitamin A nutritional values of foodstuffs and estimating human vitamin A ...
Judy D Ribaya-Mercado   +19 more
core   +1 more source

Total plasma carotenoids and mortality in the elderly: results of the Epidemiology of Vascular Ageing (EVA) study [PDF]

open access: yes, 2008
Carotenoids are pigments found in fruits and vegetables. While high intakes of fruits and vegetables have been found to be associated with lower mortality, our objective is to investigate if total plasma carotenoids, via their antioxidant properties. are
Berr, C   +5 more
core   +1 more source

Optimization and multiple in vitro activity potentials of carotenoids from marine Kocuria sp. RAM1

open access: yesScientific Reports, 2022
Marine pigmented bacteria are a promising natural source of carotenoids. Kocuria sp. RAM1 was isolated from the Red Sea Bohadschia graeffei collected from Marsa Alam, Egypt, and used for carotenoids production.
Rasha A. Metwally   +4 more
doaj   +1 more source

Carotenoids’ Production from Halophilic Bacteria [PDF]

open access: yes, 2012
Carotenoids have received considerable attention due to their interesting industrial applications and, more importantly, their potential beneficial effects on human health.
Sánchez-Porro Álvarez, Cristina   +3 more
core   +1 more source

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