Abstract
Separation of the water-soluble fraction of peanut skins led to the isolation of 8 flavonoids and two novel indole alkaloids. Two new flavonoid glycosides have been identified as isorhamnetin 3-O-[2-O-beta-glucopyranosyl-6-O-alpha-rhamnopyranosyl]- beta-glucopyranoside and 3',5,7-trihydroxyisoflavone-4'-methoxy-3'-O-beta-glucopyranoside. Two alkaloids are 2-methoxyl-3-(3-indolyl)-propionic acid and 2-hydroxyl-3-[3-(1-N-methyl)-indolyl]-propionic acid. These isolated flavonoids were evaluated for their free radical scavenging activity and protein glycation inhibitory effects.
MeSH terms
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Alkaloids / chemistry
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Alkaloids / isolation & purification*
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Alkaloids / pharmacology
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Arachis / chemistry*
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Bepridil / analogs & derivatives*
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Bepridil / chemistry
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Biphenyl Compounds
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Chromatography, High Pressure Liquid
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Fabaceae / chemistry*
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Flavonoids / chemistry
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Flavonoids / isolation & purification*
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Flavonoids / pharmacology
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Free Radical Scavengers / chemistry
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Free Radical Scavengers / isolation & purification*
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Free Radical Scavengers / pharmacology
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Glucosides / chemistry
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Glucosides / pharmacology
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Glycation End Products, Advanced
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Magnetic Resonance Spectroscopy
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Medicine, Chinese Traditional
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Molecular Structure
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Phytotherapy
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Picrates*
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Plants, Medicinal / chemistry*
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Quercetin / analogs & derivatives
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Quercetin / chemistry
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Quercetin / pharmacology
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Rutin / chemistry
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Rutin / pharmacology
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Seeds / chemistry
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Serum Albumin, Bovine / chemistry
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Spectrophotometry, Ultraviolet
Substances
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Alkaloids
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Biphenyl Compounds
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Flavonoids
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Free Radical Scavengers
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Glucosides
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Glycation End Products, Advanced
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Picrates
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Serum Albumin, Bovine
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Rutin
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Bepridil
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Quercetin
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1,1-diphenyl-2-picrylhydrazyl
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quercetin 3-O-glucopyranoside