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Article

In Vitro Antimicrobial Activity of Essential Oils against Salmonella enterica Serotypes Enteritidis and Typhimurium Strains Isolated from Poultry

1
Department of Veterinary Science, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
2
Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
3
Lombardy and Emilia Romagna Experimental Zootechnic Institute (IZSLER), Diagnostic Section of Forlì, Via Don E. Servadei 3E/3F–47122 Forlì, Italy
4
Department of Pharmacy, University of Pisa, via Bonanno 6, 56126 Pisa, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Maria Daglia
Molecules 2019, 24(5), 900; https://doi.org/10.3390/molecules24050900
Received: 6 February 2019 / Revised: 27 February 2019 / Accepted: 27 February 2019 / Published: 4 March 2019
(This article belongs to the Special Issue Natural Active Agents Against Bacteria, Fungi and Parasites)
Salmonella enterica serotype Enteritidis and S. enterica serotype Typhimurium are frequently present among poultry and are associated with outbreaks of human salmonellosis. The study investigated the in vitro antimicrobial activity of essential oils (EOs) obtained from Aloysia triphylla, Cinnamomum zeylanicum, Cymbopogon citratus, Litsea cubeba, Mentha piperita, Syzygium aromaticum against S. Enteritidis and S. Thyphimurium strains previously isolated from poultry. A 1:1 mixture of C. zeylanicum and S. aromaticum was also tested. The activity of all compounds was evaluated against the yeast Saccharomyces cerevisiae, commonly used as probiotic. The highest antibacterial activity was observed for C. zeylanicum (minimum inhibitory concentrations (MICs) ranging from 1.26 mg/mL to 0.63 mg/mL), S. aromaticum (MICs from 2.637 mg/mL to 0.164 mg/mL) and the mixture (MICs from 1.289 mg/mL to 0.322 mg/mL). No activity was recorded against S. cerevisiae. The results suggest a possible use of C. zeylanicum and S. aromaticum, alone or in combination, in the farm environment for disinfection and in poultry diet, combined with S. cerevisiae administration, for an integrated approach to avoid Salmonella intestinal colonization. View Full-Text
Keywords: Salmonella Enteritidis; Salmonella Typhimurium; Saccharomyces cerevisiae; poultry; essential oils; antimicrobial activity Salmonella Enteritidis; Salmonella Typhimurium; Saccharomyces cerevisiae; poultry; essential oils; antimicrobial activity
MDPI and ACS Style

Ebani, V.V.; Nardoni, S.; Bertelloni, F.; Tosi, G.; Massi, P.; Pistelli, L.; Mancianti, F. In Vitro Antimicrobial Activity of Essential Oils against Salmonella enterica Serotypes Enteritidis and Typhimurium Strains Isolated from Poultry. Molecules 2019, 24, 900. https://doi.org/10.3390/molecules24050900

AMA Style

Ebani VV, Nardoni S, Bertelloni F, Tosi G, Massi P, Pistelli L, Mancianti F. In Vitro Antimicrobial Activity of Essential Oils against Salmonella enterica Serotypes Enteritidis and Typhimurium Strains Isolated from Poultry. Molecules. 2019; 24(5):900. https://doi.org/10.3390/molecules24050900

Chicago/Turabian Style

Ebani, Valentina V.; Nardoni, Simona; Bertelloni, Fabrizio; Tosi, Giovanni; Massi, Paola; Pistelli, Luisa; Mancianti, Francesca. 2019. "In Vitro Antimicrobial Activity of Essential Oils against Salmonella enterica Serotypes Enteritidis and Typhimurium Strains Isolated from Poultry" Molecules 24, no. 5: 900. https://doi.org/10.3390/molecules24050900

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