Clitoria ternatea ethanolic extract prevents dental caries via inhibiting Streptococcus mutans growth and quorum sensing
2021
Yanti. | Setiawan, T. | Lay, B. W.
Our previous study demonstrated that the blue butterfly pea flower (Clitoria ternatea) had several pharmacological effects to treat inflammatory-related diseases, including edema and diabetes. However, its benefit for preventing dental caries and protecting the tooth has not been explored yet. Here, we investigated whether C. ternatea ethanolic extract (CTEE) prevented dental caries through antibacterial and antiquorum sensing activities toward oral pathogen Streptococcus mutans in vitro. CTEE was made by using kinetic maceration in ethanol. Antibacterial activity of CTEE against S. mutans was tested using disk diffusion agar and microdilution assays. Quorum sensing system employed Chromobacterium violaceum bacteria to produce violacein, and CTEE at various concentrations was tested for its antiquorum sensing activity to inhibit the violacein production. Our results demonstrated that CTEE at 1 mg/mL showed a significant inhibition >90% against S. mutans, indicating its MIC value. For the quorum sensing system, CTEE at the lowest concentration (0.25 mg/mL) significantly inhibit up to 68% of violacein produced by C. violaceum. These data indicate that CTEE may act as a natural oral functional food with antibacterial and antiquorum sensing activities for the prevention of dental caries.
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