Antimicrobial Studies on Extracts of Four Species of Stachys |
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| Authors: | M Saeedi K Morteza-Semnani M R Mahdavi and F Rahimi |
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| Institution: | Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, POBox 48175-861, Sari, Iran;1Department of Medicinal Chemistry, Faculty of Pharmacy, Mazandaran University of Medical Sciences, POBox 48175-86, Sari, Iran;2Department of Laboratory Sciences, Faculty of Paraclinical Sciences, Mazandaran Uniersity of Medical Sciences, POBox 48175-861, Sari, Iran |
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| Abstract: | The antimicrobial activity of the methanol extracts of the dried flowering aerial parts of Stachys byzantina, S. inflata, S. lavandulifolia and S. laxa (Labiatae) were studied using the disc diffusion method and determination of minimum inhibitory concentration (MIC) values against Staphylococcus aureus, Streptococcus sanguis, Escherichia coli, Pseudomonas aeroginosa, Klebsiella pneumoniae, Aspergilus niger and Candida albicans. The extracts of plants exhibited concentration-dependent antibacterial activity against the bacteria tested. The extracts were more active against Gram-positive microorganisms. The extracts, however, did not show any antifungal activity. |
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| Keywords: | Antimicrobial extract Stachys MIC |
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