Verbascum pyramidatum Bieb. Üzerinde Farmakognozik Araştırmalar

Abstract

In this research, Verbascum pyramidatum which is used for hemorrhoid and rheumatism treatment in Turkish folk medicine has been investigated. The air dried and powdered flowers and leaves of the plant were extracted with methanol separately. The methanolic exctracts were dissolved in water and then partitioned with chloroform in order to obtain the water and the chloroform extracts. These extracts were performed for the in vivo anti-inflammatory (carregeenan-induced hind paw edema model) and in vivo analgesic (p- benzoquinone-induced writhing reflex) activity assays. The water extract of the flowered parts were found to be the most active and the study was carried on it. By means of a serial of chromatographic studies on the active water extract, 3 iridoid glycosides (3′-O-β- glucopyranosylcatalpol: VP-1, Saccatoside: VP-2/VP-3a and 6-O-(3′′-O-trans-p- coumaroyl)-α-rhamnopyranosylcatalpol: VP-3b); 2 phenylethanoid glycosides (Verbascoside: VP-4, Echinacoside: VP-5) were isolated. The structures of the isolated compounds were elucidated by means of spectroscopic methods (1H NMR, 13C NMR, 2D NMR ).