Antimicrobial Activity of Piper marginatum Jacq and Ilex guayusa Loes on Microorganisms Associated with Periodontal Disease

Figure 1

I. guayusa Loes and P. marginatum Jacq fraction antimicrobial activity against P. gingivalis ATCC 33277 at three concentrations. (a) Antimicrobial activities (inhibitory halos mm) from I. guayusa Loes and P. marginatum Jacq fractions against P. gingivalis. (b) 1: P. marginatum Jacq 4 mg/mL ethanol : water fraction, 19.0 mm inhibitory halo; 2: I. guayusa Loes 4 mg/mL acetone fraction, 12.3 mm inhibitory halo; 3: P. marginatum Jacq 4 mg/mL acetone fraction, 11.7 mm inhibitory halo; 4: I. guayusa Loes 4 mg/mL hexane fraction, 13.7 mm inhibitory halo; 5: 100 µg/mL ampicillin positive control, 38.0 mm inhibitory halo.

(a)

(b)