Antibacterial Activity of Lemon Basil (Ocimum citriodorum) and Key Lime (Citrus aurantifolia S.) Extract Combination on Streptococcus mutants

BACKGROUND: Lots of plants that are used in Southeast Asian and Indonesian cuisine have antibacterial properties. AIM: This study aimed to find out the effectiveness lemon basil (Ocimum citriodorum) key lime (Citrus aurantifolia S.) extract combination on Streptococcus mutants’ inhibition. METHODS: Lemon Basil Key Lime were extracted combined with several following concentration, respectively, (30–70%, 40–60%, 50–50%, 60–40%, 70–30%). S. mutants cultured using Brain-heart Infusion Broth overnight. The inhibition range from was measured analyzed. RESULTS: All combinations except 60–40 showed significant effectivity against compared control (p < 0.05). Post hoc tests revealed only Basil-Key 30–70% has a significantly wider L50%-K50% = 0.034), L60%-K40% 0.007), L70%–K30% 0.023). CONCLUSION: Combination oral micro bacteria, especially mutants.