The Role of Phenolic Hydroxy Groups in the Free Radical Scavenging Activity of Betalains - Gandía-Herrero, Fernando; Escribano, Josefa; García-Carmona, Francisco (Journal of natural products (Washington, D.C.), 2009)
Keywords: antioxidant activity; Antioxidants; Antioxidants - chemistry; Antioxidants - isolation & purification; Antioxidants - pharmacology; betalains; Betalains - chemistry; Betalains - isolation & purification; Betalains - pharmacology; betaxanthins; Biological and medical sciences; Caryophyllaceae; Caryophyllaceae - chemistry; Caryophyllales; chemical structure; chemistry; Chemistry, Medicinal; chromatography; Flowers; Flowers - chemistry; free radical scavengers; Free Radical Scavengers - chemistry; Free Radical Scavengers - isolation & purification; Free Radical Scavengers - pharmacology; General and cellular metabolism. Vitamins; Hydrogen-Ion Concentration; isolation & purification; Life Sciences & Biomedicine; mass spectrometry; Medical sciences; Molecular Structure; pharmacology; Pharmacology & Pharmacy; Pharmacology. Drug treatments; phenolic compounds; Phenols; Phenols - chemistry; Phenols - pharmacology; physiology; Pigments, Biological; Pigments, Biological - physiology; plant pigments; Plant Sciences; Plants, Medicinal; Plants, Medicinal - chemistry; Science & Technology; spectroscopy; Structure-Activity Relationship; structure-activity relationships; PERFORMANCE LIQUID-CHROMATOGRAPHY; ANTIOXIDANT ACTIVITY; PEAR; FLUORESCENCE; ANTIRADICAL ACTIVITY; BIOSYNTHESIS; RED BEET; BETAXANTHIN; BETANIN; IONIZATION MASS-SPECTROMETRY; Nitrogen heterocycle; Benzene derivatives; Imine; Antioxidant; Diphenols; In vitro; Radical scavenger; Free radical; Aldimine; Organic pigment; Betalain; Structure activity relation; Medium effect; Six membered ring; Phenols; pH; Betaxanthine; Chemical synthesis; Hemisynthesis