Abstract
Bioguided fractionation of a leaves extract from Limoniastrum feei (Girard) Batt. (Plumbaginaceae) led to the isolation of seven polyphenolic constituents: gallic acid (1), myrciaphenone A (2), myricetin-3-O-beta-galactopyranoside (3-1), epigallocatechin gallate (3-2), myricetin 3-O-alpha-rhamnopyranoside (4), quercetin (5) and myricetin (6). Gallic acid was the most antioxidant compound in DPPH [(0.94 +/- 0.68) microg/mL] and FRAP [(0.83 +/- 0.15) microM Fe2+/mL] tests, whereas myricetin was a more specific superoxide radical scavenger since it was the most active product in the superoxide nitroblue tetrazolium hypoxanthine/xanthine oxidase test [(1.86 +/- 0.12) microg/mL].
MeSH terms
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Algeria
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Antioxidants / isolation & purification*
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Antioxidants / pharmacology
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Catechin / analogs & derivatives
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Catechin / isolation & purification
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Catechin / pharmacology
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Flavonoids / isolation & purification*
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Flavonoids / pharmacology
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Free Radical Scavengers / isolation & purification
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Free Radical Scavengers / pharmacology
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Gallic Acid / isolation & purification
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Gallic Acid / pharmacology
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Magnetic Resonance Spectroscopy
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Mass Spectrometry
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Phenols / isolation & purification*
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Phenols / pharmacology
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Plant Leaves / chemistry*
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Plumbaginaceae / chemistry*
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Polyphenols
Substances
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Antioxidants
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Flavonoids
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Free Radical Scavengers
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Phenols
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Polyphenols
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Gallic Acid
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Catechin
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epigallocatechin gallate