Antimicrobial activity of terpenoids from Copaifera langsdorffii Desf. against cariogenic bacteria |
| |
| Authors: | Ariana B. Souza Carlos H. G. Martins Maria G. M. Souza Niege A. J. C. Furtado Vladimir C. G. Heleno João P. B. de Sousa Erilda M. P. Rocha Jairo K. Bastos Wilson R. Cunha Rodrigo C. S. Veneziani Sérgio R. Ambrósio |
| |
| Affiliation: | 1. Núcleo de Pesquisa em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil;2. Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeir?o Preto, Universidade de S?o Paulo, Ribeir?o Preto, SP, Brazil |
| |
| Abstract: | ![]()
In the present work, the anticariogenic activities of nine labdane type‐diterpenes and four sesquiterpenes were investigated. Among these metabolites, (‐)‐copalic acid (CA) was the most active compound displaying MIC values very promising (ranging from 2.0 to 6.0 µg/mL) against the main microorganisms responsible for dental caries: Streptococcus salivarius, S. sobrinus, S. mutans, S. mitis, S. sanguinis and Lactobacillus casei. Time kill assays performed with CA against the primary causative agent (S. mutans) revealed that, in the first 12 h, this compound only inhibits the growth of the inoculum (bacteriostatic effect). However, its bactericidal effect is clearly noted thereafter (between 12 and 24 h). Also, CA did not show a synergistic effect when combined with the anticariogenic gold standard (chlorhexidine, CHD) in the checkerboard assays against S. mutans. In conclusion, the results points out CA as an important metabolite in the search for new effective anticariogenic agents. Copyright © 2010 John Wiley & Sons, Ltd. |
| |
| Keywords: | dental caries Copaifera langsdorffii Desf. labdane‐type diterpenes cariogenic bacteria Streptococcus mutans antimicrobial activity |
|
|
