ABSTRACT

Background: Medicinal flora is taken into consideration new sources for producing agents that might act as alternatives to antibiotics within the remedy of antibiotic-resistant bacteria. The aim of this observe was to estimate the antibacterial activity of the extraction for five plants against Bacillus cereus (B. cereus), Streptococcus pneumonia (S. pneumoniae) and Staphylococcus aureus (S. aureus) as a Gram-positive bacteria and Escherichia coli (E. coli) as a Gram-negative bacterium. Methods: Experimental, in vitro, the activities of aerial parts of five ethanolic plant extracts as well as some antibiotics against E. coli, B. cereus, S. aureus and S. pneumoniae were evaluated. The activity against 4 isolates was determined by disc diffusion method at several concentrations (100, 50, 25 mg / ml). Results: Plant extracts showed anti-bacterial activity, the results showed that Pulicaria crispa extract affected all bacterial strains examined and the effect was concentration dependent. On the other hand, Teucrium polium extract showed the lowest effect on bacteria used in the study. There were two promising plants, Pulicaria crispa and Salvia spinose, both had potential antibacterial effects against bacterial strains tested. Conclusion: Among the studied plants, Pulicaria crispa and Salvia spinose showed promising potency and efficacy as natural antibacterial agent. Keywords: Gram-negative bacteria, Gram-positivebacteria, Antibioticresistance, antibacterial, plant extract, Saudi Arabia, wild plants, medicinal plants.
Publication date: 01/02/2020

https://ijbpas.com/pdf/2020/March/MS_IJBPAS_2020_4961.pdf

Download PDF
https://doi.org/10.31032/IJBPAS/2020/9.3.4961