Distribution, Biosynthesis, and Function of Carotenoids in Oxygenic Phototrophic Algae [PDF]
Marine DrugsFor photosynthesis, oxygenic phototrophic organisms necessarily contain not only chlorophylls but also carotenoids. Various carotenoids have been identified in algae and taxonomic studies of algae have been conducted.
Shinichi Takaichi
doaj +2 more sources
Dynamical simulations of carotenoid photoexcited states using density matrix renormalization group techniques [PDF]
, 2022 We present a dynamical simulation scheme to model the highly correlated excited state dynamics of linear polyenes. We apply it to investigate the internal conversion processes of carotenoids following their photoexcitation. We use the extended Hubbard-Peierls model, $\hat{H}_{\textrm{UVP}}$, to describe the $\pi$-electronic system coupled to nuclear ...
arxiv +1 more source
Effect of Dietary Structure on Bioavailability and Antioxidant Activity of Citrus Carotenoids [PDF]
Shipin 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
Simulation of ab initio optical absorption spectrum of β-carotene with fully resolved S_{0} and S_{2} vibrational normal modes [PDF]
The Journal of Physical Chemistry A, 126, 2022, 2023 Electronic absorption spectrum of beta-carotene (b-Car) is studied using quantum chemistry and quantum dynamics simulations. Vibrational normal modes were computed in optimized geometries of the electronic ground state S0 and the optically bright excited S2 state using the time-dependent density functional theory.
arxiv +1 more source
Understanding/unravelling carotenoid excited singlet states. [PDF]
, 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
A foundation for provitamin A biofortification of maize: genome-wide association and genomic prediction models of carotenoid levels. [PDF]
, 2014 Efforts are underway for development of crops with improved levels of provitamin A carotenoids to help combat dietary vitamin A deficiency. As a global staple crop with considerable variation in kernel carotenoid composition, maize (Zea mays L.) could ...
Buckler, Edward S +13 more
core +1 more source
Marine Carotenoids: Biological Functions and Commercial Applications
Marine Drugs, 2011 Carotenoids are the most common pigments in nature and are synthesized by all photosynthetic organisms and fungi. Carotenoids are considered key molecules for life.
José M. Vega +5 more
doaj +1 more source
Properties of Carotenoids in Fish Fitness: A Review
Marine Drugs, 2020 Carotenoids, one of the most common types of natural pigments, can influence the colors of living organisms. More than 750 kinds of carotenoids have been identified. Generally, carotenoids occur in organisms at low levels.
Toshiki Nakano, Geert Wiegertjes
doaj +1 more source
Structures and functions of carotenoids bound to reaction centers from purple photosynthetic bacteria [PDF]
, 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
Improved production of lutein and β-carotene by thermal and light intensity upshifts in the marine microalga Tetraselmis sp. CTP4 [PDF]
, 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