Journal of Agricultural and Food Chemistry · 1998 · 618 citations · 25 references
Life SciencesBiochemistryEthnobotanyMass Spectrometric AnalysisStructure-activity RelationshipsAntioxidant DefenseFood AntioxidantsMedicinal PlantsPhenolic Compound AnalysisAntioxidant Activity AssaysAntioxidant Natural ProductsBioactive Plant CompoundsFree Radical ScavengingNatural AntioxidantsPhenolic CompoundsPhytochemical CompositionPlant Extract Antioxidants
Ten phenolic compounds were isolated from a butanol fraction of sage extracts, their structures determined by NMR, MS, and IR, and their antioxidant activity was evaluated using DPPH and ABTS•+ assays. A novel compound, 4‑hydroxyacetophenone‑4‑O‑β‑d‑apiofuranosyl-(1→6)-O‑β‑d‑glucopyranoside, was discovered, and rosmarinic acid and luteolin‑7‑O‑β‑glucopyranoside exhibited the strongest antioxidant activity. Keywords: sage, Salvia officinalis, phenolic compounds, antioxidant activity.
Ten phenolic compounds were isolated from a butanol fraction of sage extracts. Their structures were determined by spectral methods (NMR, MS, IR). Among them, a novel compound, 4-hydroxyacetophenone-4-O-β-d-apiofuranosyl-(1→6)-O-β-d-glucopyranoside, was identified. Two test systems, DPPH free radical scavenging activity and radical cation ABTS•+ scavenging activity, were used to evaluate their antioxidant activity. The most active compounds were found to be rosmarinic acid and luteolin-7-O-β-glucopyranoside. Keywords: Sage; Salvia officinalis; phenolic compounds; antioxidant activity
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The Relative Antioxidant Activities of Plant-Derived Polyphenolic Flavonoids
Catherine Rice‐Evans, Nicholas J. Miller, Paul Bolwell et al. · Free Radical Research · 1995 · 2.2K citations
Agriculture, Botany, Plant Sciences +15