Evaluación de la Actividad Antioxidante en los Extractos Obtenidos por CO2 Supercrítico de dos Especies Vegetales Plantago Major (Plantaginaceae) y Arnica Montana L (Asteraceae)

Abstract

In recent years scientific studies have been interested in obtaining natural products as they contribute to preserving human health. In this phytochemical analysis the leaves and flowers of two plant species were studied: Plantago major and Arnica montana L where secondary metabolites of extracts obtained by supercritical fluids were obtained; Making use of carbon dioxide (CO2) under conditions of supercritical fluid, later the determination of the antioxidant activity was carried out by the methods of FRAP and DPPH. From the plant material collected in the Zipaquira area identified preliminarily in-situ and later by the National Herbarium of the Natural Sciences Institute of the National University of Colombia, leaves and flowers of each of the plant species where the Extracts using the CO2-SF extraction technique. The preliminary phytochemical gait was positive for secondary metabolites such as flavonoids, tannins, coumarins, monoterpenes and sesquiterpenes, responsible for the antioxidant activities of plant species. The research evaluated and compared each extract obtained by the two methods of extraction, determining which of the two plant species is the most favorable to continue a more rigorous study in science