Results 21 to 30 of about 282,701 (391)

Aromatic carotenoids: Biological sources and geological implications

open access: yesGeosystems and Geoenvironment, 2022
Aromatic carotenoids have been discovered in geological sections recording mass extinction events, oceanic anoxic events, and other geological abnormalities. Given their conventional biological source attribution to phototrophic sulfur bacteria, aromatic
Jian Ma, Xingqian Cui
doaj   +1 more source

Carotenoids and Chlorophylls as Antioxidants

open access: yesAntioxidants, 2020
Chlorophylls and carotenoids are natural pigments that are present in our daily diet, especially with the increasing tendency towards more natural and healthy behaviors among consumers.
A. Pérez-Gálvez, I. Viera, María Roca
semanticscholar   +1 more source

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

Oxidative stress status of highly prolific sows during gestation and lactation

open access: yesAnimal, 2011
Elevated oxidative stress is reported to be associated with pregnancy complications in highly prolific sows. Oxidative DNA damage and the antioxidant status were determined in blood samples collected during the course of gestation and lactation in ...
C.B. Berchieri-Ronchi   +5 more
doaj   +1 more source

Understanding/unravelling carotenoid excited singlet states. [PDF]

open access: yes, 2018
Carotenoids are essential light-harvesting pigments in natural photosynthesis. They absorb in the blue–green region of the solar spectrum and transfer the absorbed energy to (bacterio-)chlorophylls, and thus expand the wavelength range of light that is ...
Alastair T. Gardiner   +16 more
core   +1 more source

Improved production of lutein and β-carotene by thermal and light intensity upshifts in the marine microalga Tetraselmis sp. CTP4 [PDF]

open access: yes, 2020
The industrial microalga Tetraselmis sp. CTP4 is a promising candidate for aquaculture feed, novel food, cosmeceutical and nutraceutical due to its balanced biochemical profile.
Barreira, Luísa   +8 more
core   +1 more source

Health benefits of carotenoids and potential application in poultry industry: A review.

open access: yesJournal of animal physiology and animal nutrition, 2020
Carotenoids are one of the widespread and ubiquitous lipid-soluble pigments that produce a wide range of colours which are universally found in various plants, microalgae, bacteria and fungi.
F. Nabi   +9 more
semanticscholar   +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.
Cogdell, R.J.   +10 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 and antioxidant enzymes as biomarkers of the impact of heavy metals in food chain [PDF]

open access: yes, 2016
Antioxidant enzymes (catalase and peroxidase) and carotenoids (lutein and â-carotene) are often used as biomarkers of metal contamination of water and agricultural soils.
Andrianos, Vangelis   +6 more
core   +3 more sources

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