QuercetinAscorbic AcidAscorbic Acid DeficiencyDehydroascorbic AcidScurvyAntioxidantsFlavonolsFlavonoidsL-Gulonolactone OxidaseSodium-Coupled Vitamin C TransportersOnionsFree Radical ScavengersPicratesOxidation-ReductionAscorbate OxidasePlant ExtractsBiological Availability2,3-Diketogulonic AcidLipid PeroxidationChromatography, High Pressure LiquidRats, Mutant StrainsGlutathionePhenolsOxidative StressDietDose-Response Relationship, DrugPolyphenolsGlycosidesVitamin EHydrogen PeroxidePhosphorous AcidsMalondialdehydeCatechinLipid PeroxidesIronGlucosidesFree Radicalsalpha-TocopherolFruitFlavanonesChromaffin GranulesElectrodesOxalic AcidLiverFerrous CompoundsKineticsReactive Oxygen SpeciesCopperBiphenyl CompoundsThiobarbituric Acid Reactive SubstancesRats, Wistar