Διερεύνηση αντιμικροβιακής δράσης φυτικών εκχυλισμάτων έναντι τροφιμογενών παθογόνων μικροοργανισμών

In many cases, plants and their parts, could have the same impact as certain commercial drugs, or even be more effective, avoiding the negative side effects as well. Plants have been used effectively for centuries, as a treatment against many diseases. Their ability to function as a medication is due to their components. One of the most important function of plants is their antimicrobial activity against foodborne pathogenic microorganisms. In the current study, the antimicrobial activity of licorice root, licorice leaves, licorice powder as a by-product of food, carob leaves, pomegranate peel, capers leaves and geranium leaves exctracts was investigated, against the foodborne pathogenic microorganisms Escherichia coli, Salmonella enterica, Cronobacter sakazakii, Staphylococcus aureus, and Listeria monocytogenes. To proceed with the microbiological analysis, the microbial culture media which are brain heart infusion and Mueller Hinton, were used and the methods of agar well diffusion and broth microdilution were applied. The results of this research indicate that the extracts of licorice leaves, licorice root, licorice powder, carob leaves and pomegranate peel, have antimicrobial activity against Gram-positive bacteria, while they did not show antimicrobial activity against Gram-negative bacteria. The extracts of carob leaves and pomegranate peel had antimicrobial activity only on the MH culture media, and their effectiveness increased when the pour plate technique was applied. Licorice leaves and root extracts had MIC and MBC against Listeria monocytogenes EGD, at concentrations of 0.5 mg/ml and 1 mg/ml, respectively. Moreover, these extracts had MBC against Listeria monocytogenes ATCC 23074 and Staphylococcus aureus ATCC 6538, at 0.5 mg/ml. ; Τα φυτά και τα μέρη τους, πολλές φορές, μπορούν να δράσουν το ίδιο ή ακόμα και σε κάποιες περιπτώσεις πιο αποτελεσματικά από ορισμένα εμπορικά φάρμακα, χωρίς ταυτόχρονα να έχουν τις αρνητικές παρενέργειες ενός φαρμάκου. Τα φυτά χρησιμοποιούνται αποτελεσματικά εδώ και ...