Vicia species are used for the treatment of malaria, diarrhea, hemorrhoids, kidney problems and infertility in Turkish traditional medicine. The present study was carried out to evaluate the in vitro anthelmintic effects of Vicia pannonica Crantz. var. purpurascens (DC). Ser. extracts. Larval motility test was used to determine anthelmintic activity of this plant. Motility of the larvae is measured by observation. The methanol, n-hexane, chloroform, acetone, and aqueous extracts of the aerial parts of the plant including the leaves and flowers were applied to developing trichostrongylus larvae at 1, 0.8, 0.6, 0.4, 0.2 and 0.1 mg/ml doses. Thiabendazole and distilled water with 5% DMSO was used as positive and negative control. All of the extracts were 100% effective. Two flavone and flavonol glycosides; luteolin-7-β-O-glucopyranoside (1) and quercetin-3-O-β-glucopyranoside (2) were isolated from the acetone extract and their structures were elucidated by spectral techniques. The solutions prepared from two flavonoid fractions at several doses were performed in vitro to larvae in the same way. Both of them were 100% effective at 1 and 0.8 mg/ml doses. Results of the present study support the utilization of these plant species employed in Turkish folk medicine.
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