Antimicrobial Activity of Water and Methanol Leaf Extracts of Green Tea (Camellia Sinensis) Against Some Pathogenic Bacteria

  • Shahlaa M Saleh Department of Biotechnology, College of Science Al-Nahrain University.
  • Bushra H Saleh Department of Biotechnology, College of Science Al-Nahrain University.
  • Enas S Bahjat A Department of Biotechnology, College of Science Al-Nahrain University.
Keywords: Green tea, antimicrobial activity, methanol extract

Abstract

This study was carried out to investigate the antimicrobial activity of water and methanol leaf extracts of Camillia sinensis against some pathogenic bacteria. Susceptibilities of S. aureus (SR1), S. aureus (SR2), S.typhimurium, E.coli, P. aeruginosa and Proteus to different antibiotics (Ampicillin, Streptomycin, Rifampicin and Neomycin) by disc diffusion test was carried out. Results revealed that S. aureus (SR1), S. aureus (SR2), P.aeruginosa, and S.typhimurium were resistant to Ampicillin and Rifampicin. E. coli was resistant to Ampicillin, Rifampicin and Neomycin while Proteus was resistant to all antibiotics used in this study. Antimicrobial activity of water and methanol leaf extracts of green tea at different concentrations (20,40,60,80 and 100) mg/ml against pathogenic bacteria was tested. Results showed that green tea water and methanol leaf extract showed inhibitory effect against pathogenic bacteria and methanol extract exhibited better antimicrobial effect against Staphylococcus aureus.

 

Published
2018-06-26
How to Cite
Saleh, S. M., Saleh, B. H., & A, E. S. B. (2018). Antimicrobial Activity of Water and Methanol Leaf Extracts of Green Tea (Camellia Sinensis) Against Some Pathogenic Bacteria. Al-Nahrain Journal of Science, 17(4), 162-167. Retrieved from https://anjs.edu.iq/index.php/anjs/article/view/390
Issue
Vol 17 No 4 (2014): December
Section
Articles
Statement of the Agreement This is an agreement under which all authors(represented by the corresponding author)of the article grant license to publish your article (titled in this document)including abstract, data, tables and figures and their explanation and the supplemental materials (if provided) in Al-Nahrain Journal of Science. This agreement is valid for the full period of copyright throughout the world and the right to publication is granted in all forms, formats and in all media of this time and in the future. This agreement includes that all the authors comply with the Journal’s policies on peer-review and publishing ethics. This agreement must be read, understood and agreed to the terms and conditions of this agreement.

..................................................................The Copyright Agreement form ..........................................................