Antibacterial Activity of Some Iranian Plant Essential Oils as Disinfectant Agents on Surfaces Contaminated with Staphylococcus Aureus and Pseudomonas Aeruginosa

Background & Objectives: Different essential oils (EOs) with antibacterial activities are promising natural sources for providing novel disinfectant agents for hospital surfaces. Materials & Methods: The component and antibacterial effects of six EOs, including Cuminum cyminum (CCEO), Artemisia sieberi (ASEO), Laurus nobilis (LNEO), Ferula gummosa (FGEO), Lippia citriodora (LCEO), and Cymbopogon citratus (CIEO) were assessed by GC-MS and ۹۶-well micro-plates (IC۵۰), against Staphylococcus aureus and Pseudomonas aeruginosa. Then, the antibacterial effects of FGEO, the most effective EO, were evaluated on the trolley surface in a hospital for ۱, ۳, ۵ and ۱۰ min intervals. Results: While CCEO, ASEO, and FGEO have the highest effects on the growth of S. aureus, CIEO and LNEO showed the best outcomes on P. aeruginosa. In addition, our finding showed that FGEO relatively decreases the growth of S. aureus and P. aeruginosa on the trolley surface (P<۰.۰۵). Conclusion: The studied EOs could be novel encouraging agents to develop further green antimicrobial agents against different infections. In addition, FGEO, one of the best disinfectant agents in the present study, showed relatively strong antibacterial effects on the surface of the trolley.

Keywords:

Essential oil , Antibacterial activity , Microdilution , Disinfectant