Phytochemical studies of Syringa vulgaris L.

Written by Barabás Csenge, Varga Erzsébet

Syringa vulgaris is a shrub which belongs to the Oleaceae family. It is originated from the Balkans, Asia Minor, but now it is cultivated as an ornamental plant, including Southeastern Europe. The flowers (the white subspecies) were used in the traditional medicine as antipirethics and for healing burning wounds. The aim of our study was to bring new informations about the chemical components found in the Syringa vulgaris, especially about the tannic acids, poliphenolic and flavonoid compounds. We used Syringae cortex, Syringae folium and Syringae flos. The analysis of tannic acids were made according to the X.th Romanian Pharmacopeea and the identification of flavonoids and poliphenolic compounds by thin layer cromatography. Syringae cortex has a higher content of tannins than Syringae folium. Syringae cortex contains 1.54 ± 0.01% polyphenols and 0.40 ± 0.05% tannins; Syringae folium contains 1.24 ± 0.01% polyphenols and 0.34 ± 0.04% tannins. After TLC analysis, we compaired the fractions from the parts of plants with standard fractions. We got the following results: Syringae folium contains isoquercetin and rutin, Syringae flos rutin, and Syringae cortex chlorogenic acid. In all three parts of plant is probably caffeic and/or rosmarinic acid. Beside these there are unknown fractions in the Syringa vulgaris. Based on the phytochemical analysis we can say that beside the fact that Syringa vulgaris is a well known and popular ornamental plant, it could be used in phytotherapy.

 

Keywords: Syringa vulgaris, tannic acids, flavonoidic compounds

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