Concentrations ranging from 5 to 800 μg/mL for antibacterial activity tests, and 50 to 2000 μg/mL for antifungal activity tests were employed by dissolving the test samples in DMSO. A sterility control was also carried out (growth control contained nutrient broth plus DMSO, without antimicrobial substances). Each test and growth control well was incubated for 24 h at 37 °C for bacteria and 3 days at 25 °C for fungi