Tests for antibacterial activity were performed with the standard bacterial strains Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922 and Enterobacter aerogenes and with the multidrug-resistant strains S. aureus 10 (SA10), E. coli 06 (EC06) and E. aerogenes CN64 (EA CN64). In parallel, antifungal activity was also evaluated with the fungal strains Candida krusei 01, Candida tropicalis 20 and Candida albicans 62 and multidrug-resistant
strains C. krusei LMBM 01 (CK LMBM01), C. tropicalis LM 20 (LM20) and C. albicans LM 62 (CA LM62). All microbial strains were obtained from the collection of microorganisms in the Microbiology and Molecular Biology Laboratory of URCA. Stocks of the cultures
were kept in heart infusion agar (HIA) and stored in a refrigerator