Antimicrobial investigations on rhizomes of Cyperus rotundus Linn.
By Surendra Kumar Sharma and Ajay Pal Singh
Cyperus rotundus Linn. rhizomes extracts were evaluated against six important pathogenic
microbes viz. Staphylococcus epidermidis, Bacillus cereus, Pseudomonas aeruginosa,
Escherichia coli, Aspergillus niger and Candida albicans . The powdered rhizome extracts were
successively extracted with petroleum ether, chloroform, ethanol and water using Soxhlet
apparatus. The antibacterial and antifungal activities were performed by both agar well
diffusion and serial dilution methods. The ethanolic extract was found to exhibit highest activity
against tested bacteria. However all extracts were ineffective against fungal strains. The
inhibitory effect is very similar and comparable with that of standard drug.
Keywords: Cyperus rotundus, antibacterial, antifungal, minimum inhibitory concentration.
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