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Article

Chemical Composition and In Vitro Antimicrobial Efficacy of Sixteen Essential Oils against Escherichia coli and Aspergillus fumigatus Isolated from Poultry

1
Department of Veterinary Science, University of Pisa, viale delle Piagge 2, 56124 Pisa, Italy
2
Centro Interdipartimentale di Ricerca “Nutraceutica e Alimentazione per la Salute”, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
3
Department of Pharmacy, University of Pisa, via Bonanno 6, 56126 Pisa, Italy
*
Author to whom correspondence should be addressed.
Vet. Sci. 2018, 5(3), 62; https://doi.org/10.3390/vetsci5030062
Received: 14 May 2018 / Revised: 18 June 2018 / Accepted: 21 June 2018 / Published: 25 June 2018
Escherichia coli and Aspergillus fumigatus are two pathogens largely present among poultry. They can cause mild or severe forms of disease, and are associated with significant economic losses. The aim of the present study was to investigate the chemical composition and the in vitro antimicrobial activity of sixteen essential oils (EOs) and five mixtures against E. coli and A. fumigatus strains previously isolated from poultry. The study was performed with the following EOs: Aloysiatryphilla, Boswelliasacra, Cinnamomum zeylanicum, Citrus aurantium, Citrus bergamia, Citrus limon, Citrus reticulata, Cymbopogon citratus, Eucalyptus globulus, Lavandula hybrida, Litsea cubeba, Ocimum basilicum, Melaleuca alternifolia, Mentha piperita, Pelargoniumgraveolens, and Syzygium aromaticum. Moreover, the following mixtures were also tested: L. cubeba and C. citratus (M1), L. cubeba and A. triphylla (M2), A. triphylla and C. citratus (M3), A. triphylla, C.citratus and L. cubeba (M4), S. aromaticum and C. zeylanicum (M5). One hundred and ninety-one compounds were identified in the tested EOs and mixtures. MIC determination found good anti-E. coli activity with C. zeylanicum (2.52 mg/mL), C. citratus (1.118 mg/mL), L. cubeba (1.106 mg/mL), M. piperita (1.14 mg/mL) and S. aromaticum (1.318 mg/mL) EOs. Among the mixtures, M5 showed the best result with a MIC value of 2.578 mg/mL. The best antimycotic activity was showed by A. triphylla (0.855 mg/mL), followed by C. citratus (0.895 mg/mL), while C. aurantium, M. piperita, B. sacra and P. graveolens did not yield any antifungal effect at the highest dilution. The mixtures exhibited no antifungal activity at all. This study shows promising results in order to use EOs in the environment for disinfection purposes in poultry farms and/or in hatcheries. View Full-Text
Keywords: antimicrobial activity; Escherichia coli; Aspergillus fumigatus; poultry antimicrobial activity; Escherichia coli; Aspergillus fumigatus; poultry
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MDPI and ACS Style

Ebani, V.V.; Najar, B.; Bertelloni, F.; Pistelli, L.; Mancianti, F.; Nardoni, S. Chemical Composition and In Vitro Antimicrobial Efficacy of Sixteen Essential Oils against Escherichia coli and Aspergillus fumigatus Isolated from Poultry. Vet. Sci. 2018, 5, 62. https://doi.org/10.3390/vetsci5030062

AMA Style

Ebani VV, Najar B, Bertelloni F, Pistelli L, Mancianti F, Nardoni S. Chemical Composition and In Vitro Antimicrobial Efficacy of Sixteen Essential Oils against Escherichia coli and Aspergillus fumigatus Isolated from Poultry. Veterinary Sciences. 2018; 5(3):62. https://doi.org/10.3390/vetsci5030062

Chicago/Turabian Style

Ebani, Valentina Virginia, Basma Najar, Fabrizio Bertelloni, Luisa Pistelli, Francesca Mancianti, and Simona Nardoni. 2018. "Chemical Composition and In Vitro Antimicrobial Efficacy of Sixteen Essential Oils against Escherichia coli and Aspergillus fumigatus Isolated from Poultry" Veterinary Sciences 5, no. 3: 62. https://doi.org/10.3390/vetsci5030062

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