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http://dspace.udla.edu.ec/handle/33000/9886| Tipo de material : | bachelorThesis |
| Título : | Evaluación del efecto antimicrobiano del extracto de la planta stevia rebaudiana sobre el staphylococcus aureus |
| Autor : | Cox Terán, Elizabeth Violeta |
| Tutor : | García Flores, Joar Marcelino |
| Palabras clave : | MICROBIOLOGÍA VETERINARIA;ANTIBIÓTICOS;STEVIA |
| Fecha de publicación : | 2018 |
| Editorial : | Quito: Universidad de las Américas, 2018 |
| Citación : | Cox Terán, E. V. (2018). Evaluación del efecto antimicrobiano del extracto de la planta stevia rebaudiana sobre el staphylococcus aureus (Tesis de pregrado). Universidad de las Américas, Quito. |
| Resumen : | La Stevia rebaudiana es una planta que contiene en sus hojas 0.3 por ciento de Dulcósido, 0.6 por ciento de Rebaudiósido C, 3.8 por ciento de Rebaudiósido A y 9.1 por ciento de Esteviósido, se ha descrito que el extracto de la planta Stevia Rebaudiana posee efecto antimicrobiano debido a un compuesto denominado esteviósido, el cual inhibe el glucano, por tanto, aunque la planta es un edulcorante, no es fermentado en ácidos por las bacterias y este compuesto posee efecto sobre las enzimas que se encargan de la descomposición de azúcares... |
| Descripción : | Stevia rebaudiana is a plant that contains in its leaves 0.3 percent Dulcoside, 0.6 percent Rebaudioside C, 3.8 percent Rebaudioside A and 9.1 percent Stevioside, it has been described that the extract of the Stevia Rebaudiana plant has an effect antimicrobial due to a compound called stevioside which inhibits glucan, therefore, although the plant is a sweetener, is not fermented in acids by bacteria and this compound influences the enzymes that are responsible for the decomposition of sugars. The objective of this study was to evaluate the antimicrobial effect of Stevia rebaudiana plant extract on Staphylococcus aureus. The sample was taken from the oral flora of canines between five and seven years old that presented moderate to severe tartar. Subsequently, by means of the steam water distillation method, the extract of the plant was obtained. The bacterium was confronted with two synthetic antibiotics, such as amoxicillin and tetracycline and at 4 concentrations of the plant extract (25 percent, 50 percent, 75 percent and the stock solution). The results were analyzed with the nonparametric test Kruskal Wallis, 0. Finding that the extract of the plant does have an antimicrobial effect in 75 percent concentrations and the mother solution. The inhibition halo obtained with amoxicillin was 20.4 mm, tetracycline was 33 mm, 1.47 mm with the extract 75 percent and 9.3 mm with the stock solution. Proving that the extract of Stevia rebaudiana does have an antimicrobial effect. However, it should be used as a preventive method, but not to treat bacterial infections. |
| URI : | http://dspace.udla.edu.ec/handle/33000/9886 |
| Aparece en las colecciones: | Medicina Veterinaria y Zootecnia |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| UDLA-EC-TMVZ-2018-59.pdf | 2,18 MB | Adobe PDF | Visualizar/Abrir |
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