Evaluación de la actividad antioxidante y antiinflamatoria de extractos obtenidos de Scenedesmus sp.

Abstract

Growing interest for replacing synthetic molecules with natural ones has increased the demand of biological sources; it has been used like mainly source the plants; however, the microalgae represent a highly competitive strategy. Microalgae are unicellular photosynthetic microorganisms, which are easily of culture and scale. The present investigation is focused on the study of the bioactivities of Ecuadorian Scenedesmus sp. to give information about its potential like source of bioactive natural molecules. The culture of microalgae was done with a low-cost medium elaborated using BASFOLIAR (10:4:7) fertilizer and water, and the culture was exposed to continuous illumination. The hydroethanolic and aqueous extracts obtained from Scenedesmus sp. were characterized with quantitative essays for total phenols, flavonoids, and carotenoids. The high concentration of these metabolites was achieved with the extract obtained with ethanol:water 80:20 (volume:volume percentage). The extracts were evaluated for antioxidant and anti-inflammatory activity with 2,2-Diphenyl-1-Picrylhydrazyl (DPPH) assay and inhibition of denaturalization of albumin assay, respectively. Like the best results for the bioactivities were obtained 6,37 micromoles of Trolox per gram of dry weight and 41,40 percent of imbibition of DPPH radical capacity and 38,42 percent of imbibition of albumin denaturation capacity, both for the hydroethanolic extract rich in bioactive compounds.