Chemical Characterization and Antibiotic-Enhancing Activity of the Essential Oils of Propolis of .

This study investigated the chemical composition and potential antibacterial activity of the essential oils from the propolis of (MQP) in samples collected from the cities of Paranaguá and Guaratuba, Paraná, Brazil, during summer and winter. The chemical composition of the oils was analyzed by GC-MS, and their minimum inhibitory concentration (MIC) was determined against standard ATCC strains and some clinical isolates ( 06 and 10). The essential oils' MICs were determined using microdilution in 96-well plates and showed no significant antibacterial activity (MIC ≥ 1024 μg/mL) when used alone.