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- W4296984916 abstract "With two compounds first discovered in quinoa, an entire novel family of betalain pigments derived from dopamine is obtained and characterized. Betalains are nitrogenous water-soluble pigments and bioactive molecules with health-promoting effects and nutraceutical potential. It was assumed that all betalains contained betalamic acid as a structural unit derived from l-dihydroxyphenylalanine (l-DOPA). However, hitherto ignored compounds derived from dopamine have recently been discovered in nature. Here an entire family of betalains is described as decarboxylated pigments where 6-decarboxy-betalamic acid is the chromophoric and structural unit. This paper shows for the first time the production, purification and characterization of color and fluorescent properties of this novel family of pigments. Antioxidant and anti-aging effects of the just discovered betalains were tested in vivo using the animal model Caenorhabditis elegans. Some of them presented extraordinary properties, being glutamic acid-6-decarboxy-betaxanthin the most fluorescent molecule among both families of betalains. Methionine sulfoxide-6-decarboxy-betaxanthin is described as the most potent betalain in the reduction of oxidative stress in vivo in C. elegans (99.5 % at 25 µM) and dopa-6-decarboxy-betaxanthin increased the lifespan of the animal model up to 7.0 % at 25 µM. These results open new research lines in the search for molecules from plants with health-promoting properties and bioactivities." @default.
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- W4296984916 date "2022-12-01" @default.
- W4296984916 modified "2023-10-06" @default.
- W4296984916 title "Bioactive potential and spectroscopical characterization of a novel family of plant pigments betalains derived from dopamine" @default.
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- W4296984916 doi "https://doi.org/10.1016/j.foodres.2022.111956" @default.
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