Antimicrobial activity of Agrimonia Herba extract against bacteria isolated from oral of health woman was determined by paper disc method, heat and pH treatment and growth inhibiting activities.
Minimum inhibitory concentrations of the water ectract of Agrimonia Herba showed 1.0-1.4mm of growth inhibiting activities in the range from 0.20 to 0.25w/v %. The antimicrobial activities of Agrimonia Herba extracts against the oral bacteria were unstable by either heat treatment or acid treatment at 70 and 100℃, 30min. and acid range, respectively.
Also, the study was to investigate the effect of mouthrinse containing Agrimonia Herba extract liquor on the oral pathogentic bacterium. The result of anticmicrobia activities examinated to oral bacteria with the various concentration of experimental mouthrinse containing Agrimonia Herba extracts showed (1.14±0.12)×10⁴, (1.18±0.32)×10⁴, (1.81±0.55)×10⁴ and (1.79±0.94)×105 for 0.0, 0.5, 1.0 and 1.5 w/v%.