DETERMINATION OF FLAVONOIDS IN MEDICINAL PLANT EXTRACT (POLYGONUM AVICULARE L)

Аннотация

Polygonum aviculare L., also known as knotweed or bird's-foot buckwheat, belongs to the buckwheat family (Polygonaceae). This widespread, seemingly inconspicuous plant grows along roadsides, in yards, and in wastelands. The phytochemical composition of Polygonum aviculare includes tannins, resins, traces of essential oil, vitamins C and K, and provitamin A. Its leaves contain significant amounts of ascorbic acid in reduced form (405–450 mg%) and reversibly oxidized form (253–300 mg%). In addition, the flavonol glycoside avicularin (C₂₀H₁₈O₁₁) has been identified; upon hydrolysis, quercetin and arabinose are formed. Oxymethylanthraquinones have been found in the plant's roots. The plant exhibits anti-inflammatory, hemostatic, diuretic, antioxidant, and restorative properties. It is used for gastrointestinal and urinary tract disorders, bleeding, and in the complex treatment and rehabilitation of cancer patients.