The Inhibitory Efficiency of Aqueous Extracts of Quercus infectoria against Escherichia coli, Salmonella, Streptococcus, and Staphylococcus

• Muftah Omar Ali

  Department of Botany, Faculty of Science, Sirte University, Sirte, Libya

  Author

In light of the extensive utilization of popular medicine, herbal remedies, and medicinal plants in the treatment of microbial infections in Libyan society, the present study was conducted to investigate the impact of aqueous extracts of Quercus infectoria on two bacterial groups: Gram-negative (Escherichia coli and Salmonella) and Gram-positive (Streptococcus and Staphylococcus). The estimation of antibacterial activity was carried out by implementing the Disc Diffusion Technique. The present study focuses on the aqueous extracts of Quercus infectoria bark. The aqueous extracts of Q. infectoria demonstrated the greatest effect on the growth of gram-positive microorganisms, Streptococcus and Staphylococcus, with inhibitory zones measuring 1.7 mm and 0.9 mm, respectively.  The impact of the extract on Gram-negative isolates (Salmonella, Escherichia coli) was less significant, with respective measurements of 0.6 mm and 0.2 mm. 

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