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Carotenoids with two chromophores: carotenoid retinoates
Natural Product Research, 2011In this study, carotenoid retinoates are described for the first time. The preparation was achieved by the azolide method. Various sec carotenols reacted with N-retinoylimidazol in the presence of catalytic amounts of sodium hydride. Mono- and diretinoates of (3R,3'R)-zeaxanthin and its (3S,3'S)-enantiomer, (9Z,9'Z; 3R,3'R)-alloxanthin, (3R,3'R)-7,8,7',
Sissel, Hertzberg +2 more
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1995
Carotenoids occur universally in photosynthetic organisms but sporadically in nonphotosynthetic bacteria and eukaryotes. The primordial carotenogenic organisms were cyanobacteria and eubacteria that carried out anoxygenic photosynthesis. The phylogeny of carotenogenic organisms is evaluated to describe groups of organisms which could serve as sources ...
E A, Johnson, W A, Schroeder
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Carotenoids occur universally in photosynthetic organisms but sporadically in nonphotosynthetic bacteria and eukaryotes. The primordial carotenogenic organisms were cyanobacteria and eubacteria that carried out anoxygenic photosynthesis. The phylogeny of carotenogenic organisms is evaluated to describe groups of organisms which could serve as sources ...
E A, Johnson, W A, Schroeder
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2012
Carotenoids are among the most widely distributed pigments in nature, and they are exclusively synthesized by plants and microorganisms. These compounds may serve a protective role against many chronic diseases such as cancers, age-related macular degeneration, and cardiovascular diseases and also act as an excellent antioxidant system within cells ...
Preejith, Vachali +2 more
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Carotenoids are among the most widely distributed pigments in nature, and they are exclusively synthesized by plants and microorganisms. These compounds may serve a protective role against many chronic diseases such as cancers, age-related macular degeneration, and cardiovascular diseases and also act as an excellent antioxidant system within cells ...
Preejith, Vachali +2 more
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Nutrition Reviews, 2009
Interactions between carotenoids during absorption and during postabsorptive metabolism have been demonstrated or suggested in animal and human feeding or supplementation studies, as well as in in vitro studies of intestinal beta-carotene cleavage.
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Interactions between carotenoids during absorption and during postabsorptive metabolism have been demonstrated or suggested in animal and human feeding or supplementation studies, as well as in in vitro studies of intestinal beta-carotene cleavage.
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SYNTHESIS OF CAROTENOID GLYCOSYLESTERS AND OTHER CAROTENOIDS
Pure and Applied Chemistry, 1979Abstract: The naturally occurring crocetin di(β-D-glucosyl)ester can be synthesised from crocetin diimidazolide or crocetin di-(1,2,4-triazolide) and β-D-glucose in pyridine in presence of a base. The application of this new method to other carboxylic acids (8′ -apo-β-carotene-8′-oic acid, vitamin A acid, benzoic acid and stearic acid) and ...
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Con gran satisfacción y entusiasmo se presenta ante la comunidad científica, la presente obra, un libro dedicado a despejar las innumerables dudas respecto al conocimiento de las características, propiedades y métodos de extracción de carotenoides: carotenos y xantófilas.
Aurora Martínez Romero +1 more
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Aurora Martínez Romero +1 more
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