ACTIVIDAD ANTIBACTERIANA Y ANTIOXIDANTE DE EXTRACTOS METANÓLICOS DE PROPÓLEOS DE MAGDALENA DE KINO Y SONOYTA, SONORA ANTIBACTERIAL AND ANTIOXIDANT ACTIVITIES OF PROPOLIS METHANOLIC EXTRACTS FROM MAGDALENA DE KINO AND SONOYTA, SONORA

The antibacterial and antioxidant activities of propolis collected from two different areas of Sonora State [Magdalena de Kino propolis (MKP), and Sonoyta propolis (SP)] in northwestern Mexico were evaluated. The antibacterial and antioxidant activities of MKP and SP were determined by the broth microdilution method and the DPPH (1,1-diphenyl-2-picrylhydracyl) assay, respectively. Both propolis samples showed antibacterial activity against Staphylococcus aureus and Vibrio cholerae and scarce activity against Escherichia coli. The MKP showed the highest antibacterial activity against S. aureus, followed by V. cholerae and E. coli with a minimal inhibitory concentration (MIC 90 ) of 200.0 µg/mL, 400.0 µg/mL and >400.0 µg/mL, respectively. The MKP sample showed antibacterial activity against V. cholerae (MIC 90 400,0 µg/mL). The SP exhibited MIC 90 of >400.0 µg/mL against all the microorganisms studied. Additionally, MKP ex