Abstract
El polen de Stryphnodendron polyphyllum (Mart.), típicamente conocido como barbatimão, es un problema para los apicultores con apiarios cerca de la planta, debido a toxicidad del polen para las abejas. El objetivo fue evaluar la actividad antioxidante, antibacteriana, determinar fenoles totales y taninos en el extracto etanólico. La actividad antioxidante se evaluó por método DPPH. La actividad antibacteriana se realizó por método de microdilución. Los taninos totales y fenoles se determinaron por método espectrofotométrico. Tuvimos resultados con actividad inhibitoria y bactericida para Escherichia coli, Pseudomonas aeruginosa, Streptococcus mutans, Streptococcus sobrinus, Streptococcus sanguinis, Streptococcus salivarius y Lactobacillus paracasei. Se determinó EC50 de 7.42mg/mL en la actividad antioxidante. Para compuestos fenólicos y tánicos los resultados comparados con la curva de calibración son 3,12±0,005g/100g de muestra expresados como ácido gálico y 7,3±0,03g/100g de muestra expresados como ácido tánico. Pollen from the Stryphnodendron polyphyllum (Mart.), typically known as barbatimão, is a problem for beekeepers who have apiaries close to the plant, due to pollen toxicity for bees. The objective was to evaluate the antioxidant, antibacterial activity, determine the total phenols and tannins present in the ethanolic extract. Antioxidant activity was evaluated by the DPPH method. Antibacterial activity was performed by the microdilution method.Total tannins and phenols were determined by the spectrophotometric method. We had results with inhibitory and bactericidal activity for Escherichia coli, Pseudomonas aeruginosa, Streptococcus mutans, Streptococcus sobrinus, Streptococcus sanguinis, Streptococcus salivarius and Lactobacillus paracasei. It was determined EC50 of 7.42mg/mL in the antioxidant activity. For phenolic and tannic compounds the results compared to the calibration curve are 3.12±0.005g/100g of sample expressed as gallic acid and 7.3±0.03g/100g of sample expressed as tannic acid.
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