Abstract
Syrian sumac leaves (Rhus coriaria) containing 23.35 % tannins, were subjected to solvent fractionation with ethyl acetate, methanol and water. After acid hydrolysis of both the ethyl acetate and methanol extracts, the flavonols myricetin, quercetin and kaempferol were identified by paper Chromatographie evidence together with gallic acid, m–digallic acid, methyl gallate and ellagic acid. Confirmation of all identified phenolic components was achieved by ultraviolet spectrophotometric measurements.
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