Volume 39, Issue 6 e12688
ORIGINAL ARTICLE

Chemical composition and antimicrobial activity against food-related microorganisms of different essential oils from Lebanon

Francesco Fancello

Francesco Fancello

Department of Agriculture, University of Sassari, Sassari, Italy

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Marc El Beyrouthy

Marc El Beyrouthy

Faculty of Agricultural and Food Sciences, Holy Spirit University of Kaslik, Jounieh, Lebanon

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Marcello Iriti

Corresponding Author

Marcello Iriti

Department of Agriculture and Environmental Sciences, Milan State University, Milan, Italy

Correspondence

Marc Bou Zeidan, Faculty of Agricultural and Food Sciences, Holy Spirit University of Kaslik, 446 Jounieh, Lebanon.

Email: [email protected]

Marcello Iriti, Department of Agriculture and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy.

Email: [email protected]

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Madona El Khoury

Madona El Khoury

Faculty of Agricultural and Food Sciences, Holy Spirit University of Kaslik, Jounieh, Lebanon

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Marc Bou Zeidan

Corresponding Author

Marc Bou Zeidan

Faculty of Agricultural and Food Sciences, Holy Spirit University of Kaslik, Jounieh, Lebanon

Correspondence

Marc Bou Zeidan, Faculty of Agricultural and Food Sciences, Holy Spirit University of Kaslik, 446 Jounieh, Lebanon.

Email: [email protected]

Marcello Iriti, Department of Agriculture and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy.

Email: [email protected]

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Severino Zara

Severino Zara

Department of Agriculture, University of Sassari, Sassari, Italy

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First published: 01 August 2019
Citations: 3
Francesco Fancello and Marc El Beyrouthy contributed equally to this study.

Abstract

Essential oils (EOs) have long been recognized for their medicinal properties. Application of EOs in food preservation has gained recent interest as natural alternatives to conventional chemicals. Even though the properties of EOs are extensively documented, their effect on several food-related microorganisms is yet to be explored. In this study, six EOs were extracted by hydrodistillation and analyzed using GC/MS techniques, and then antimicrobial activity was tested against microorganisms of food interests through minimal inhibitory concentration (MIC) techniques. Both Coridothymus capitatus and Origanum syriacum EOs showed an antifungal activity (MIC ≤ 0.625 μL/mL). Interestingly all foodborne pathogens tested were sensitive to C. capitatus EO and two of them, Staphylococcus aureus and Listeria monocytogenes, to O. syriacum EO (MIC ≤ 1.25 μL/mL) while the beneficial food-related bacteria (Lactobacillus sp.) were not affected (MIC ± 10 μL/mL). Finally, Cinnamomum zeylanicum EO showed a broader antimicrobial activity on all microorganisms analyzed.

Practical Applications

Essential oils from Lebanese plants could be used to selectively control foodborne pathogens, including fungi and bacteria. These essential oils could represents an alternative to conventional anti microbials as they did not affect benefiacial food-related bacteria.

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