| dc.description.abstract | Background: Most of carries were caused by Streptococcus mutans. White frangipani leaves
ethanol extract were alleged to control the growth of Streptococcus mutans. This extract contains
antibacterial compound such us flavonoid, saponin, tannin, and alkaloid. Purpose: This study was to
find out antibacterial activity of white frangipani leaves ethanol extract against the growth of
Streptocossus mutans. Method: This study was well diffusion method with 6 treatment groups. Each
petridish was filled BHI-A and inoculated by S. mutans followed by making 6 wells using the borer
(diameter 5 mm). Extracts 50%, 25%, 12.5%, 6.25%, positive and negative control were added into the
wells at concentration of 20 µL for each material. Then the incubation was carried out at a
temperature of 37oC for 24 hours then inhibitory zones were measured. Results: this study showed that
there were inhibitory zones in positive control, extract 50%, and 25% treatment groups and weren’t
nhibitory zones in negative control, extract 12,5%, and 6,25%. Conclusion: White frangipani leaves
ethanol extract has antibacterial activity against the growth of Streptococcus mutans with minimum
nhibitory concentration of 25%. | en_US |
