Results 171 to 180 of about 3,240 (198)
A provitamina A (β - caroteno) do azeite de dendê: (Eloeis melanoccoca, GÄRT) [PDF]
Memorias Do Instituto Oswaldo Cruz, 1940 Humberto T Cardoso +2 more
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Relatedness of Caroteno-Chlorophyll Antenna Complexes in Algae and Plants
1998A great variety of pigment-protein complexes has evolved over time in oxygenic organisms whose primary function is the absorption of light and the transfer of energy to reaction centers within the thylakoid membranes. Phycobilisomes (PBS) are the predominant antennae in rhodophytes and cyanophytes (10, 27). PBS are located within the stromal space, and
E. Gantt +3 more
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Quercetin and daidzeinβ-apo-14’-carotenoic acid esters as membrane antioxidants
Free Radical Research, 2013Esterification by β-apo-14'-carotenoic acid was found to have opposite effects on antioxidant activity of quercetin (at B4', B3' hydroxyl) as of daidzein (at A7 hydroxyl) in phosphatidylcholine liposomes. The daidzein ester had increased activity, while quercetin had a significant decreased activity.
Hu, F. +9 more
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Forgotten fatty acids—Surface properties supply conclusive evidence for including carotenoic acids
Chemistry and Physics of Lipids, 2018The term "fatty acids" is conceptually well defined with regard to fats, whose extent of saturation or unsaturation is precisely indicated in the content description of foodstuff. In contrast, the term "fatty acid" gives no hint of being associated with "soap" (Na and K salts of fatty acids).
Asma Zaidi +7 more
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Fotofísica de carotenóides e o papel antioxidante de b-caroteno [PDF]
Quimica Nova, 1997 Carotenoid polyenes play a wide role in nature and their photophysical properties make of these pigments a focus of research in photochemistry, photobiology and photomedicine. Some aspects of the singlet and triplet states and, their interaction with molecular and singlet oxygen and free radicals are briefly reviewed in this article.
exaly +4 more sources
β‐Apo‐8′‐Carotenoic acid and its esters in sunflower oil oxidation
Journal of the American Oil Chemists' Society, 2001AbstractThe oxidation kinetics of sunflower oil (SO) and pure triacylglycerols of sunflower oil (TGSO) in the presence of different concentrations (0.0008–0.02%, 1.9–32.7×10−5 M) of β‐apo‐8′‐carotenoic acid (CA), ethyl β‐apo‐8′‐carotenoate (EC), and β‐apo‐8′‐carotenoylglycerol (CG) were studied.
N. V. Yanishlieva +4 more
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