Elerson Gaetti-Jardim Júnior; Luis Fernando Landucci; Omar Khalil Kidudsi Arafat; Robson Varlei Ranieri; Marcelle Marie Buso Ramos; Francisco Isaak Nícolas Ciesielski; Christiane Marie Schweitzer & Ana Claudia Okamoto


The extracts of plants from Brazilian savanna are currently used in popular medicine. This study evaluated the inhibitory activity of the alcoholic and aqueous extracts from savanna plants on periodontal bacteria. The minimal inhibitory concentrations were evaluated by the agar dilution method, using Wilkins-Chalgren agar. Antimicrobial activity of plants extracts on microbial biofilms was determined in microplates. Psidium cattleianum and Myracrodruon urundeuva extracts demonstrated significant inhibitory activity on all bacterial strains tested; alcoholic and aqueous extracts showed similar results. The extracts from these two species were able to inhibit both planktonic cells and microbial biofilm.

KEY WORDS: anaerobic bacteria, plant extracts, antimicrobial agents, periodontitis.

How to cite this article

GAETTI-JARDIM Jr., E.; LANDUCCI, L. F.; ARAFAT, O. K. K.; RANIERI, R. V.; RAMOS, M. M. B.; CIESIELSKI, F. I. N.; SCHWEITZER, C. M. & OKAMOTO, A. C. Antimicrobial activity of six plant extracts from the Brazilian savanna on periodontal pathogens. Int. J. Odontostomat., 5(3):249-256, 2011.