Was determinated chemical composition of essential oil from Caesalpinia spinosa, obtained by stripping with steam method, with a yield of 0,125% v/w, as well as its antioxidant capacity and antibacterial effect against Streptococcus mutans ATCC 35668. To identify chemical constituents were employed Gas Chromatography and Mass Spectrometry (GC/MS), finding 23 compounds, being in greater quantity: pelargonaldehído (11,21%); dihydro-neoclovene-(i) (5,51%); naphthalene,1,2,3,5,6,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)-,(15-CIS)- (4,87%) y dihydro-cis-alfa-copaene-8-ol (4,13%). Evaluation of antioxidant activity was performed using the methods of 2,2-diphenyl-1-picrylhydrazyl (DPPH) and acid radical 2,2'-azino-bis- (3-etilbenzotiazolin-6-sulfonic acid) (ABTS—⁺), determining that IC50 to both methods was > 200 µL/mL, using as captation reference trolox®, which had IC50 3,8 µg/mL....

Se determinó la composición química del aceite esencial de Caesalpinia spinosa, obtenido por el método de destilación por arrastre con vapor de agua con un rendimiento de 0,125% v/p, así como su capacidad antioxidante y actividad antibacteriana frente a Streptococcus mutans ATCC 35668. Para la identificación de los constituyentes químicos se emplearon Cromatografía de Gas y Espectrometría de Masas (CG/EM), encontrándose 23 compuestos, de los cuales destacan en mayor porcentaje: pelargonaldehído (11,21%); dihydro-neoclovene-(i) (5,51%); naphthalene,1,2,3,5,6,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)-,(15-CIS)- (4,87%) y dihydro-cis-alfa-copaene-8-ol (4,13%). La evaluación de la actividad antioxidante se realizó aplicando los métodos de 2,2–difenil-1-picrilhidracilo (DPPH) y del radical ácido 2,2’-azino-bis-(3-etilbenzotiazolin-6-sulfónico) (ABTS—⁺), determinándo...