Evaluation of Chemical Compounds and Comparison of Antibacterial Activity of Essential Oil and Nanoemulsion Containing Essential Oil of Ziziphora clinopodioides L

Introduction: Medicinal plants have played a major role in the treatment of multiple diseases for centuries. Ziziphora clinopodioides is one of these plants with well-known antibacterial properties. The present study aimed to investigate the antibacterial effects of Z. Clinopodioides essential oil and nanoemulsion. Method: After preparing and collecting the plant in spring, the samples were dried in the shade and transferred to the laboratory. Thereafter, the essential oil was extracted by Clevenger. Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus were used to determine antibacterial properties. Results: Pulegone had the highest composition (44.49%) of essential oil. Particle size in 5% nanoemulsion of Z. Clinopodioides essential oil was 13.0 nm. The results demonstrated that considering the diameter zone of the no-growth, there was no significant difference between 5% nanoemulsion and 5% Z. Clinopodioides essential oil in both gram-positive and gram-negative bacteria. Conclusion: Nanoemulsion containing essential oil showed no significant difference in antibacterial activity compared to essential oil