Finding bioactive compounds with antimicrobial and antioxidant capacity from natural sources has been a challenge., mainly due to the increase in microbial resistance. This study aimed at prospecting the main classes of secondary metabolites and the antioxidant and antimicrobial activity of Brunfelsia uniflora leaf extract. The ethanolic extract was obtained by dynamic maceration with solvent, and the antioxidant activity was analyzed using the DPPH (2,2-diphenyl-1-picrylhydrazyl) method. The antimicrobial activity was evaluated against Escherichia coli, Staphylococcus aureus, and Candida albicans by broth microdilution method. The phytochemical analysis of B. uniflora leaf extract showed the presence of saponins, tannins and alkaloids. The extract presented minimum inhibitory concentration of 62.5 mg/mL for E. coli. The 1.49 mg/mL extract concentration inhibited 50% of free radicals in the DPPH solution at 60 µM. The antimicrobial and antioxidant activities of this plant extract were the basis of studies to develop applications in the pharmaceutical, cosmetics and food industries.
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