Vincetoxicum hirundinaria'nın Farklı Kısımlarının Bazı Biyolojik Aktiviteleri

Abstract

In this study, it was aimed to determine the antimicrobial, antibiofilm activities and synergistic effects of ethanol extracts obtained from above-ground, root, seed and seed coat of Vincetoxicum hirundinaria Medic. Antimicrobial activity was performed against 7 bacterial and 3 fungal standard strains by microdilution method and minimum inhibition concentrations (MIC) were determined. The crystal violet method was applied to determine the prevention of biofilm formation and inhibition of preformed biofilm activities on P. aeruginosa biofilm. In addition, the synergistic effects of aerial part and seed extracts against both E. coli and E. faecalis were examined by the microdilution checkerboard method. According to the antimicrobial test results tested extracts had moderate to low efficacy against studied bacterial and yeast strains. The synergy test showed that the aerial and seed extracts had additive effect against both E. coli and E. faecalis. The extracts also showed the potential to inhibit biofilm formation and inhibit preformed biofilms. Root and seed pod extracts showed the strongest antibiofilm activity, while the aerial part extract was the weakest. In conclusion, our results prove that the tested extracts, especially obtained from root and seed pods and used in the treatment of many diseases, have potential in terms of antibiofilm activity. The literature search indicated that the antimicrobial and antibiofilm activities of V. hirundinaria was evaluated for the first time in the current study, therefore; our findings provide important preliminary data to the literature in terms of antibiofilm activity of V. hirundinaria