The influence of different concentrations of plant essential oils on growth and reproduction of Salmonella enteritidis

Stojiljkovic, Jasmina and Trajchev, Metodija and Petrovska, Milena and Nakov, Dimitar (2020) The influence of different concentrations of plant essential oils on growth and reproduction of Salmonella enteritidis. Journal of Agriculture and Plant Sciences.

Text 25. Stojiljkovic et al_49-55.pdf Download (663kB)

Abstract

Plant essential oils have been reported to possess antimicrobial properties and therefore have potential
usage as natural antimicrobials of food. The aim of the study was to examined the antimicrobial effect of
sweet basil and thyme essential oils against growth and reproduction of Salmonella enteritidis reference
strain ATCC 13076 (S. enteritidis RS) and Salmonella enteritidis epidemical strain (S. enteritidis ES) cultivated
on plate. Therefore, the samples were prepared as a dip application from different concentrations of sweet
basil and thyme essential oils (1%; 2.5% and 5%) with initial concentration of bacteria from 109 CFU/mL and
were cultivated on plate. The control samples were prepared as dip application of bacteria without added
essential oils. All samples were exposed at 37°C and 46°C. The growth of S. enteritidis RS and S. enteritidis ES was
observed only in the control samples without added sweet basil and thyme essential oils. There was not any
growth of both Salmonella еnteritidis strains in the samples dipped in the 1%; 2.5% and 5% sweet basil and
thyme essential oils. The results from the ANOVA indicate that the utilized essential oils in combination with
temperature regime was significantly (p <0.001) reduced the CFU number of the both strains of Salmonella
enteritidis. These results support the possibility of using sweet basil and thyme essential oil as natural
preservatives in food to contribute in the reduction of Salmonella enteritidis at acceptable levels in view to
prevent the risk for consumers.
Key words: Salmonella, sweet basil, thyme

Item Type:	Article
Subjects:	Agricultural Sciences > Agricultural biotechnology
Divisions:	Faculty of Agriculture
Depositing User:	Dimitar Nakov
Date Deposited:	26 Aug 2022 07:47
Last Modified:	26 Aug 2022 07:47
URI:	https://eprints.ugd.edu.mk/id/eprint/30132

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