in vitro study of antibacterial activity of mangle negro extracts against selected pathogens from enterobacteriaceae and bacillaceae families

Background: in this study, the antibacterial activity of mangle negro extract against selected pathogens from enterobacteriaceae and bacillaceae was evaluated. objectives: the antibacterial activity of m. negro ethanolic and aqueous extracts were evaluated, through disk agar diffusion method, extract on medium surface method and microdilution method. materials and methods: this experimental study after collection and preparation of aqueous and ethanolic extracts of m. negro, their effects against human pathogen microorganism were determined. results: the ethanolic and aqueous extracts inhibited the growth of all the organisms tested. the minimum inhibitory concentration (mic) of the extracts ranged between 4 mg/ml and 64 mg/ml. conclusions: the study demonstrated that the ethanolic leaf extract of m. negro hold an excellent potential as an antibacterial agent.