Evaluation of the active compound and antibacterial activity of a Salvia rosmarinus extract against pathogenic bacteria

When bacteria attach to the human body, they have many defense mechanisms. These mechanisms pose a global health risk. Medicinal plants can be used to control such bacterial attack mechanisms. The aim of this study was to assess the antimicrobial potential of an aqueous extract of Salvia rosmarinus and other plant extracts against some clinical bacterial isolates. The antimicrobial activity against Gram-positive and Gram-negative bacteria (S. aureus, E. coli, P. aeruginosa, Proteus spp., and Klebsiella spp.) was determined by using the agar well diffusion method. When compared to an alcoholic extract, the aqueous extract of Salvia rosmarinus inhibited the studied bacterial isolates with greater efficiency.