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1. Essential oil antibacterial activity against methicillin-resistant and -susceptible Staphylococcus aureus strains.

Author

Bona, Elisa, Massa, Nadia, Novello, Giorgia, Pavan, Matteo, Rocchetti, Andrea, Berta, Graziella, and Gamalero, Elisa

Subjects
*METHICILLIN-resistant staphylococcus aureus, *LAVENDERS, *ESSENTIAL oils, *DRUG resistance in bacteria, *METHICILLIN resistance, *STAPHYLOCOCCUS aureus
Abstract

Staphylococcus aureus is a pathogen causing infections that range from skin lesions to life threatening conditions. Methicillin resistance development in S. aureus strains represents a huge problem worldwide. The inhibition efficacy of twelve different essential oils (laurel, anise, oregano, basil, lavender, mint, rosemary, tea tree, bergamot, grapefruit, ginger and winter savory) and of the antibiotic Vancomycin was tested against S. aureus NCTC6571 and clinical isolates using paper disk diffusion assay and broth microdilution test methods. Forty-four S. aureus strains isolated from different human sample were characterized for antibiotic resistance and 41% of them were methicillin resistant. Among the twelve tested oils basil, oregano and savory showed stronger inhibition effect on S. aureus growth than Vancomycin. These results can be useful for the formulation of topical gel containing selected essential oils active against S. aureus strains. [ABSTRACT FROM AUTHOR]

Published
2019
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2. Essential oil antibacterial activity against methicillin-resistant and -susceptible Staphylococcus aureus strains

Author

Elisa Gamalero, Matteo Pavan, Graziella Berta, Andrea Rocchetti, Nadia Massa, Elisa Bona, and Giorgia Novello

Subjects
Microbiology (medical), biology, medicine.drug_class, Broth microdilution, Antibiotics, biology.organism_classification, medicine.disease_cause, Microbiology, law.invention, Minimum inhibitory concentration, Antibiotic resistance, Staphylococcus aureus, essential oils, minimal inhibitory concentration, disk diffusion, fluorescein diacetate assay, law, Winter savory, medicine, Vancomycin, Molecular Biology, Essential oil, medicine.drug
Abstract

Staphylococcus aureus is a pathogen causing infections that range from skin lesions to life threatening conditions. Methicillin resistance development in S. aureus strains represents a huge problem worldwide. The inhibition efficacy of twelve different essential oils (laurel, anise, oregano, basil, lavender, mint, rosemary, tea tree, bergamot, grapefruit, ginger and winter savory) and of the antibiotic Vancomycin was tested against S. aureus NCTC6571 and clinical isolates using paper disk diffusion assay and broth microdilution test methods. Forty-four S. aureus strains isolated from different human sample were characterized for antibiotic resistance and 41% of them were methicillin resistant. Among the twelve tested oils basil, oregano and savory showed stronger inhibition effect on S. aureus growth than Vancomycin. These results can be useful for the formulation of topical gel containing selected essential oils active against S. aureus strains.

Published
2019

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