dc.contributor | Torrenegra Guerrero, Rubén Darío | |
dc.contributor | Rodríguez Aguirre, Oscar Eduardo | |
dc.creator | Bohórquez Fajardo, Ricardo | |
dc.date.accessioned | 2016-09-26T20:24:22Z | |
dc.date.available | 2016-09-26T20:24:22Z | |
dc.date.created | 2016-09-26T20:24:22Z | |
dc.date.issued | 2016 | |
dc.identifier | https://repository.udca.edu.co/handle/11158/591 | |
dc.description.abstract | Se le determino la actividad antioxidante por los métodos de radical libre DPPH* y ABTS*+ de los extractos de hojas en éter de petróleo, diclorometano, acetato de etilo y etanol de las hojas de Diplostephium phylicoides (Kunth) Wedd Las concentraciones usadas fueron 12.5, 25, 62.5, 125 y 250 mg/L de metanol, presentando mayor actividad antioxidante por el método DPPH* y ABTS*+ el extracto etanol con un IC50 de 2.34 mg/L por el ensayo de DPPH* y 8.63 mg/L para el ensayo de ABTS*+ respectivamente, siguiéndole el extracto acetato de etilo 6.32 mg/L, por el método ABTS*+.Igualmente se evidenció esto por el método de DPPH* con IC50 de 0.43 mg/L’ la capacidad antioxidante comparada con la del ácido ascórbico es un 48.87% menor, pero es mejor que la de la Rutina con un 40%. | |
dc.language | spa | |
dc.publisher | Facultad de Ciencias | |
dc.publisher | Química | |
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dc.rights | https://creativecommons.org/licenses/by-nc-sa/4.0/ | |
dc.rights | info:eu-repo/semantics/closedAccess | |
dc.rights | Atribución-NoComercial-CompartirIgual 4.0 Internacional (CC BY-NC-SA 4.0) | |
dc.rights | Derechos Reservados - Universidad de Ciencias Aplicadas y Ambientales | |
dc.subject | Extractos de hojas | |
dc.subject | Diplostephium phylicoides (Kunth) Wedd | |
dc.subject | Actividad antioxidante | |
dc.title | Determinación de actividad antioxidante de extractos de hojas de Diplostephium phylicoides (Kunth) Wedd | |
dc.type | Trabajo de grado - Pregrado | |