Evaluación de la actividad antioxidante y el efecto citotóxico de los extractos etanolitos, etéreos y fracciones de las inflorescencias y hojas de Achyrocline bogotensis (Kunth) DC (Asteraceae)

Abstract

Since vegetal matherial colected in Guasca´s zone and preliminary identified in-situ and later by the National Herbarium of the Natural Science Institute of the Universidad Nacional de Colombia, will grown flowers and leaves and was obtained the extracts by Soxhlet method. The previous study of this specie allow us focus on the flavonoids search, responsible of the antioxidant activities of various species. The division of the extracts was also realized by Soxhlet method and using thin layer cromatography with increase polarity solvents. The search was directioned evaluating every single extract and fraction determining wich of those we could find the highest biological activities object of study of this paper, selecting wich exceed the fifty percent of antioxidant activity and cell viability