Antibacterial activity of alcoholic and aqueous extracts of Echinochloa crus-galli L. against bacteria in vitro

Subject Areas : Genetic

سیدمسعود HashemiKarooyi ¹ , آیت الله Nasrollahi omran ² , H.R Pordeli ³ , عیسی Gholampoor Azizi ⁴

1 - Department of Microbiology, Islamic Azad University, Tonkabon Branch
2 - Faculty of Medical Science, Islamic Azad University, Tonkabon Branch
3 - دانشگاه آزاد اسلامی واحد گرگان
4 - Department of Microbiology, Islamic Azad University, Babol Branch

Received: 2008-07-23 Accepted : 2008-12-05 Published : 2009-06-15

Keywords: antibacterial effect, Echinochloa crus-galli L, Aqueous and alchoholic extract,

Abstract :

The antagonistic effects that plants have on different micro organisms can be used to protect microorganism from the environment. The Echinochloa crus-galli with a universal growth is found in paddy fields in the North of Iran, named Soroof, in the weed form. In this research,different methanolic, ethanolic and aqueous extract have been provided from Echinochloa crus-galli and their effects on gram positive & gram negative bacteria growth using disk diffusion, well diffusion, plate count, Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) method. It concluded that different types of methanolic, ethanolic& aqueous extract inhibited Staphylococcus aureus and Bacillus cereus growth while did not have any effect on Escherichia coli and Pseudomonas aeroginosa growth.

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