Document Type: Short communication

Authors

1 Department of Agronomy,Faculty of Agriculture, University of Zabol, Zabol, Iran

2 Zabol University of Medical Sciences, Zabol, Iran

3 Department of Plant Breeding and Biotechnology, University of Zabol, Zabol, Iran

4 Zabol Medicinal Plant Research Center, Zabol University of Medical Sciences, Zabol, Iran

Abstract

Objective: Infections are increasing caused by antibiotic-resistant Pseudomonas aeruginosa day by day. For this reason, many researchers have tried to find new compounds as alternative antibiotics. The purpose of this study was to evaluate the effect of yarrow extract, green tea and Ajowan  on Pseudomonas aeruginosa. Methods: Extraction  of Achillea, green tea and Ajowan was done with rotary. For this study, 12 strains of Pseudomonas aeruginosa isolated from patients in the city of Zabol. Minimum inhibitory concentrations of the plant extract of Achillea, green tea and Ajowan was determined in different concentrations by dilution on bacteria with plate method. Results: Results from plant extracts showed the highest MIC (minimum inhibitory concentration) of green tea extract was concentration of 2.5 milligrams per milliliter for Pseudomonas aeruginosa that 8 strains were inhibited at this concentration. Also, The highest inhibitory concentration (MIC) of achiella extract against strains of Pseudomonas aeruginosa was 5 milligrams per milliliter that four strains were inhibited at this concentration, the lowest concentration of inhibitor was 62 milligrams per milliliter. Discussion: This study showed that Achiella, green tea and Ajowan have antibacterial effect against strains of Pseudomonas aeruginosa. However, the clinical use of these plants require more and wider research.

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