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Microbiology Research
Volume 10
Issue 1
10.4081/mr.2019.8331
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Article

Essential Oil Antibacterial Activity against Methicillin-Resistant and -Susceptible Staphylococcus aureus Strains

by
Elisa Bona
1,
Nadia Massa
2,*,
Giorgia Novello
2,
Matteo Pavan
2,
Andrea Rocchetti
3,
Graziella Berta
2 and
Elisa Gamalero
2
1
Dipartimento di Scienze ed Innovazione Tecnologica, Università del Piemonte Orientale, Vercelli, Italy
2
Dipartimento di Scienze ed Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
3
Azienda Sanitaria Santi Antonio, Biagio e Cesare Arrigo, Alessandria, Italy
*
Author to whom correspondence should be addressed.
Microbiol. Res. 2019, 10(1), 8331; https://doi.org/10.4081/mr.2019.8331
Submission received: 2 October 2019 / Revised: 2 October 2019 / Accepted: 13 October 2019 / Published: 11 November 2019

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.
Keywords: Staphylococcus aureus; essential oils; minimal inhibitory concentration; disk diffusion; fluorescein diacetate assay Staphylococcus aureus; essential oils; minimal inhibitory concentration; disk diffusion; fluorescein diacetate assay

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MDPI and ACS Style

Bona, E.; Massa, N.; Novello, G.; Pavan, M.; Rocchetti, A.; Berta, G.; Gamalero, E. Essential Oil Antibacterial Activity against Methicillin-Resistant and -Susceptible Staphylococcus aureus Strains. Microbiol. Res. 2019, 10, 8331. https://doi.org/10.4081/mr.2019.8331

AMA Style

Bona E, Massa N, Novello G, Pavan M, Rocchetti A, Berta G, Gamalero E. Essential Oil Antibacterial Activity against Methicillin-Resistant and -Susceptible Staphylococcus aureus Strains. Microbiology Research. 2019; 10(1):8331. https://doi.org/10.4081/mr.2019.8331

Chicago/Turabian Style

Bona, Elisa, Nadia Massa, Giorgia Novello, Matteo Pavan, Andrea Rocchetti, Graziella Berta, and Elisa Gamalero. 2019. "Essential Oil Antibacterial Activity against Methicillin-Resistant and -Susceptible Staphylococcus aureus Strains" Microbiology Research 10, no. 1: 8331. https://doi.org/10.4081/mr.2019.8331

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