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Antimicrobial activity against beneficial microorganisms and chemical composition of essential oil of Mentha suaveolens ssp. insularis grown in Sardinia

Petretto, Giacomo Luigi and Fancello, Francesco and Zara, Severino and Foddai, Marzia and Mangia, Nicoletta Pasqualina and Sanna, Maria Lina and Omer, Elasyed A. and Menghini, Luigi and Chessa, Mario and Pintore, Giorgio Antonio Mario (2014) Antimicrobial activity against beneficial microorganisms and chemical composition of essential oil of Mentha suaveolens ssp. insularis grown in Sardinia. Journal of Food Science, Vol. 79 (3), M369-M377. ISSN 0022-1147. eISSN 1750-3841. Article.

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DOI: 10.1111/1750-3841.12343

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Abstract

The aim of this work was to determine the chemical constituents and in vitro antimicrobial activity of the essential oil (EO) of the aerial parts of Mentha sueveolens spp. insularis grown in Sardinia (Italy) against probiotic and starter microorganisms. The gas chromatography-mass spectrometry (GC-MS) analysis allowed to identified 34 compounds, most of oxygenated monoterpene compounds (82.5%) and among them, pulegone was found as major compound (46.5%). The agar diffusion test carried out employing the EO of Mentha suaveolens spp. insularis showed a low antibacterial activity, in particular no action was noticed for probiotic bacteria belonging to lactic acid bacteria groups, whereas almost all yeasts strains tested were inhibited. The automated microtitter dilution assay showed a clear effect at increasing concentration of EO on the specific growth rate (μ) and extension of the lag phase (λ) only for S. xylosus SA23 among bacteria and for Saccharomyces cerevisiae, Tetrapisispora phaffii CBS 4417, Metschnikowia pulcherrima, and Candida zemplinina among yeasts. Results obtained in this work allow us to broaden the knowledge on the effect of EOs on probiotic and food-related microorganisms.

Item Type:Article
ID Code:10104
Status:Published
Refereed:Yes
Uncontrolled Keywords:GC-MS, essential oil, fermented food, probiotic bacteria, yeasts, Sardinia
Subjects:Area 05 - Scienze biologiche > BIO/15 Biologia farmaceutica
Area 07 - Scienze agrarie e veterinarie > AGR/16 Microbiologia agraria
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Agraria
001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:Blackwell / Wiley
ISSN:0022-1147
eISSN:1750-3841
Deposited On:16 Sep 2014 12:06

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