Antibacterial Activity of Tannins Extracted from Some Medicinal Plants in vitro

Abstract

Objective: To investigate the inhibition effect of some condensed tannins on the growth of four type of bacteria in vitro. Materials and methods: Susceptibilities were determined using diffusion method. Tests were conducted aerobically using AC agar medium. Results: The result indicate that source and concentration are importance factors that influence antimicrobial activity of tannin. Conclusion: Inhibition zones of growth were varied among plant seeds.