Abstract

PIMENTEL RAMIREZ, Erika et al. Antibacterial effect of ethanolic extracts from plants utilized in the Andes culinary traditions against microorganisms of the oral cavity. Rev. Estomatol. Herediana [online]. 2015, vol.25, n.4, pp.268-277. ISSN 1019-4355.

Objectives: to determine the in vitro antibacterial activity of the ethanolic extract from Origanum vulgare (oregano), Tagetes elliptica (chincho) and Tagetes minuta (huacatay) compared with clorhexidine 0.12% and Colgate Plax against Lactobacillus acidophilus ATCC 43121 and Porphyromonas gingivalis ATCC 33277. Materials and Methods: Antimicrobial activity was evaluated by agar diffusion method, minimum inhibitory concentration (MIC) and pour plate technique. The study design was experimental in vitro cross sectional. The univariate and bivariate statistical analysis were done in SPSS 17.0. Results: it was found that the antibacterial activity of experimental substances against Lactobacillus acidophilus ATCC 43121 was: the 100% oregano ethanolic extract had an inhibition zone average of 18.43 ±3.96mm, the 100% chincho ethanolic extract of 20.5 ±2.99mm, clorhexidine 0.12% 21.3 ±0.38mm and Colgate Plax 14.93±0.84mm. For Porphyromonas gingivalis ATCC 33277: the 100% chincho ethanolic extract had an inhibition zone average of 16.27 ±2.67mm, the 100% oregano ethanolic extract had an inhibition zone average of 25.86 ±1.18mm, the 100% huacatay ethanolic extract of 24.49 ±3.21mm, clorhexidine 0.12% of 19.59 ±0.48mm and Colgate Plax 14.29 ±0.3mm. The MIC of the chincho ethanolic extract against Lactobacillus acidophilus ATCC 43121 was 125 mg/mL, finding inhibition zones of 10.33mm. Conclusions: there is an effective in vitro antibacterial activity of the Origanum vulgare (oregano) and Tagetes elliptica (chincho) ethanolic extracts compared to clorhexidine 0.12% and Colgate Plax against Lactobacillus acidophilus ATCC 43121 and Porphyromonas gingivalis ATCC 33277, however, the Tagetes minuta (huacatay) is effective only against Porphyromonas gingivalis ATCC 33277.

Keywords : antibacterial agents; plant extracts; mouth; Origanum; Tagetes.

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