Combining Tetracycline and Essential Oils to Fight Resistant Salmonella in Pigs
Author Information
Author(s): Maggio Francesca, Lauteri Carlotta, Rossi Chiara, Ferri Gianluigi, Serio Annalisa, Vergara Alberto, Paparella Antonello
Primary Institution: University of Teramo
Hypothesis
Can the combination of tetracycline compounds and essential oils enhance the antimicrobial effectiveness against resistant Salmonella enterica strains from the swine food chain?
Conclusion
The study found that essential oils can increase the susceptibility of resistant Salmonella enterica strains to tetracycline, significantly lowering the concentration needed to inhibit their growth.
Supporting Evidence
- Essential oils can modulate bacterial drug resistance.
- The combination of essential oils and tetracycline significantly reduced the MIC from 256 to 4 μg/mL.
- Synergistic effects were observed in several strains when treated with essential oils and tetracycline.
- Thymol, carvacrol, and linalool were identified as key components enhancing susceptibility to tetracycline.
Takeaway
This study shows that mixing certain plant oils with antibiotics can help fight germs that are hard to kill, especially in pigs.
Methodology
The study evaluated the antimicrobial effectiveness of tetracycline compounds combined with essential oils on 11 resistant Salmonella enterica strains using Minimum Inhibitory Concentrations (MICs) and Minimum Bactericidal Concentrations (MBCs).
Limitations
The study only examined a limited number of bacterial strains, which may not represent all resistant strains.
Digital Object Identifier (DOI)
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