Bibliographic citations
Cavero, M., Angeles, G. (2018). Evaluación in vitro del efecto antibacteriano de los extractos metanólicos de las algas marinas sobre cepas de streptococcus mutans (ATCC®35668™) [Tesis, Universidad Peruana de Ciencias Aplicadas (UPC)]. http://hdl.handle.net/10757/624450
Cavero, M., Angeles, G. Evaluación in vitro del efecto antibacteriano de los extractos metanólicos de las algas marinas sobre cepas de streptococcus mutans (ATCC®35668™) [Tesis]. PE: Universidad Peruana de Ciencias Aplicadas (UPC); 2018. http://hdl.handle.net/10757/624450
@misc{renati/367179,
title = "Evaluación in vitro del efecto antibacteriano de los extractos metanólicos de las algas marinas sobre cepas de streptococcus mutans (ATCC®35668™)",
author = "Angeles Bonelli, Gianella Solange",
publisher = "Universidad Peruana de Ciencias Aplicadas (UPC)",
year = "2018"
}
Objective: The aim of this study was to evaluate the antibacterial of the methanolic extracts of Macrocystis pyrifera, Lessonia trabeculata, Lessonia nigrescens and Chondracanthus chamissoi againts Streptococcus mutans (ATCC ®35668™). Material and methods: The present study was of experimental type in vitro, in which four methanolic extracts of Macrocystis pyrifera, Lessonia trabeculata, Lessonia nigrescens and Chondracanthus chamissoi were prepared. For each extract 6 independent tests were performed and as a positive control, the 0.12% Chlorhexidine solution was used. He went with the method of diffusion in the well of Kirby-Bauer, then proceeded to the reading of the halos with an external cover Vernier. Likewise, the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (CMB) of the extracts were found and the cytotoxic effect of each methanolic extract was determined with the MTT method. Results: A higher antibacterial effect was found in the methanolic extracts of Lessonia trabeculata and Macrocystis pyrifera with halos of 18.1 mm + 0.75 mm and 12.25 mm + 0.69 mm respectively on Streptococcus mutans respectively; however, it has the minor antibacterial effect of the methanolic extracts of Lessonia nigrescens and Chondracanthus chamissoi with halos of 10.08 mm + 0.46 mm and 9.32 mm + 0.49 mm. In cell viability, Lessonia trabeculata showed an effect at 66% of concentration similar to or less than 10000 mg / ml of the extract, while the extract of Chondracanthus chamissoi showed an effect superior to 84%, the extract of Lessonia nigrescens to 65% and the extract derived from Macrocystis pyrifera at 79%. Conclusions: It was determined that the four algae have an antibacterial effect against Streptococcus mutans, however there is a statistically significant difference between the extracts of Macrocystis pyrifera and Lessonia trabeculata with the extracts of Lessonia nigrescens and Chondracantus chamissoi. Likewise, the four algae have low cytotoxic effect at high concentrations.
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