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European Journal of Medicinal Plants

European Journal of Medicinal Plants, ISSN: 2231-0894 ,Vol.: 3, Issue.: 3 (July-September)

 

 

Phytochemical Investigations and Antibacterial Activity of Selected Medicinal Plants from Jordan

 

 

Sawsan Abuhamdah1*, Rushdie Abuhamdah2, Suleiman Al-Olimat3 and Paul.Chazot2

1Department of Biopharmaceutics and Clinical Pharmacy, Faculty of Pharmacy, University of Jordan, Amman, Jordan.
2School of Biological & Biomedical Sciences, Durham University, Durham, UK.
3Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Jordan, Amman, Jordan.

 

Abstracts

 

Aims: To determine the antibacterial effect of crude methanolic extracts of six selected medicinal plants grown in Jordan (Paronychia argentea Lam., Inula viscosa L., Arbutus andrachne L., Asphodelus microcarpus Salzm et Vivi, Peganum harmala L. and Aloysia citriodora Palau) against Bacillus subtilis, Staphylococcus aureus and Escherichia coli.
Study Design: In vitro assessment antibacterial study.
Place and Duration of Study: Department of Biopharmaceutics and Clinical Pharmacy, Faculty of Pharmacy, University of Jordan, Amman, Jordan. Between (December 2012 and January 2013).
Methodology: In-vitro Laboratory experimental tests; preparation of plant extracts, phytochemical screening; susceptibility tests (zones of inhibition) and minimum inhibitory concentration (MIC) determination.
Results: While the crude methanolic extract of P. argentea, A. andrachne, A. microcarpus had no antibacterial activity, crude extract of P. harmala showed good antibacterial activities against all the tested bacterial strains. MIC values for the seed and root extract of against S. aureus were 0.375 mg/ml and 1.5 mg/ml respectively while MIC values for seed and root extracts against B. subtilis were 0.375 and 6.25 mg/ml, respectively and also showed week activity against Gram negative bacteria. The crude methanolic extract of I. viscosa and A. citriodora was also active against bacterial strains S. aureus and B. subtilis and inactive against E. coli. MIC value for I. viscosa extract against S.aureus were 6.25 mg/ml and against B. subtilis 0.375 mg/ml. Meanwhile, MIC value for A. citriodora against S. aureus were 12.5 mg/ml and against B. subtilis 1.5 mg/ml.
Conclusion: Results indicate the potential antibacterial activity of I. viscosa and A. citriodora towards Gram positive bacteria such as B. subtilis and S. aureus. The extracts phytochemical screening revealed the presence of terpenoids, flavonoids and phenolics. These preliminary results would be a guide in the selection of potential candidates for further pharmacological study and in search of new drug candidate for treatment of infections caused by Gram positive bacteria.

 

Keywords :

Antibacterial activity; Jordanian medicinal plants; crude extract; phytochemical screening.

 

 

DOI : 10.9734/EJMP/2013/3540

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