Azhar A. ZARKANI
Department of Biotechnology, College of Science, University of Baghdad, 10071 Baghdad, IRAQ
*Corresponding author: email@example.com
Abstract. Medicinal plants such as Hibiscus sabdariffa and Sesbania grandiflora are widely used to treat different diseases caused by different microbes in several countries. The antimicrobial activities of Hibiscus and Sesbania extracts were examined in present work. The antimicrobial activity of the plant extracts were investigated against Escherichea coli, Staphyloccoccus aureus and Pseudomonas aeruginosa. This study exhibited strong antibacterial activity of the aqueous extract of H. sabdariffa in comparison to S. grandiflora stem and root ethanolic extracts. Results obtained from this study indicate that both extracts exhibited concentration dependent effect. Hibiscus extract showed the highest inhibition activity against all bacterial strains at concentration 500 mg/mL in comparison to Sesbania extract.
Keyword: Antimicrobial activity, Hibiscus sabdariffa, Inhibition zone, Sesbania grandiflora.