Working Paper Article Version 1 This version is not peer-reviewed

Evaluation of Chemical Composition, Antioxidant and Anti Listeria monocytogenes and Salmonella enterica Activity of the Essential Oil of Mentha pulegium and Mentha suaveolens Collected in Morocco

Version 1 : Received: 30 April 2019 / Approved: 5 May 2019 / Online: 5 May 2019 (12:05:03 CEST)

How to cite: Ed-Dra, A.; Rhazi Filali, F.; Lo Presti, V.; Zekkori, B.; Nalbone, L.; Trabelsi, N.; Bentayeb, A.; Giuffrida, A.; Giarratana, F. Evaluation of Chemical Composition, Antioxidant and Anti Listeria monocytogenes and Salmonella enterica Activity of the Essential Oil of Mentha pulegium and Mentha suaveolens Collected in Morocco. Preprints 2019, 2019050017 Ed-Dra, A.; Rhazi Filali, F.; Lo Presti, V.; Zekkori, B.; Nalbone, L.; Trabelsi, N.; Bentayeb, A.; Giuffrida, A.; Giarratana, F. Evaluation of Chemical Composition, Antioxidant and Anti Listeria monocytogenes and Salmonella enterica Activity of the Essential Oil of Mentha pulegium and Mentha suaveolens Collected in Morocco. Preprints 2019, 2019050017

Abstract

The essential oils (EOs) obtained from aromatic plants are rich in natural compounds with interesting biological effects. The aim of this study was to evaluate the chemical composition of EOs of Mentha pulegium (MP-EO) and Mentha suaveolens (MS-EO) collected from Morocco, and their antioxidant properties and antibacterial activity against Salmonella enterica and Listeria monocytogenes. The EOs were extracted by hydro-distillation, while the chemical compositions were determined by GC-MS. The antioxidant activity was evaluated by DPPH and FRAP assay. Antibacterial activity was tested with disc diffusion assay; determination of minimum inhibitory concentration, minimum bactericidal concentration and the evaluation of sub-lethally injured cell were also performed. The results of chemical composition showed the presence of compounds not still reported in EOs obtained from these plants. MS-EO was characterized by the best antioxidant and antibacterial activity vs S. enterica and L. monocytogenes respect to MP-EO. The EOs tested in this study were rich in compounds with interesting activities and they could be applied in the medical fields, as well as in food industries as natural preservatives against tested food borne pathogens.

Subject Areas

essential oil; Mentha pulegium; Mentha suaveolens; Listeria monocytogenes; Salmonella enterica; antioxidant; sub-lethally injured bacteria

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