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51 .   A study regarding the antibacterial activity of some comercial essential oils on food-borne pathogenic and spoilage bacteria

Authors: Maria-Doinița Borș, Maria Tofană, Ramona Suharoschi, Anca Rotar

Volume 19, Issue 3;
Pages: 314-318;
ISSN: 2069-0053 (print) (former ISSN: 1453-1399), Agroprint;
ISSN (online): 2068-9551



Abstract:

The aim of this study was to investigate the antibacterial activity of some commercial essential oils, obtained from herbs and spices commonly used in cookery, against a panel of food-borne pathogenic and spoilage bacteria such as Stafilococcus aureus, Escherichia coli and Bacillus cereus. Eight essential oils were tested (dill oil, juniper oil, oregano oil, basil oil, thyme oil, rosemary oil, fir oil and clove oil) in different concentrations (1 l, 5l și 10l) using the agar diffusion technique. The results were compared with those of a commercial antibiotic gentamycin, which was used as a positive control at a constant concentration of 10 l. Some of the essential oils exhibited promising antibacterial effect as a diameter of zones of inhibition (21-33 mm) against the tested bacteria. The results indicate the potential efficacy of plant-based natural products such as essential oil of oregano, clove and thyme to control food-borne pathogenic and spoilage bacteria.

Keywords: Antibacterial activity, essential oil, agar diffusion, food-borne bacteria

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