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Zsuzsanna S.,SZIE AOTK Elelmiszerhigieniai Tanszek | Katalin S.,SZIE AOTK Elelmiszerhigieniai Tanszek | Orsolya E.,SZIE AOTK Elelmiszerhigieniai Tanszek | Geza S.,SZIE AOTK Elelmiszerhigieniai Tanszek | And 2 more authors.
Magyar Allatorvosok Lapja

Xytitol is a naturally occurring, five-carbon sugar alcohol, which has long been known to the world of organic chemistry. Its insulin independent nature, the non-cariogenic property and the role in prevention of acute otitis media and other respiratory diseases have gradually brought it to light. Xylitol has been found particularly attractive as a non sugar sweetener for food and pharmaceutical industries. Nowadays, it is produced on commercial scale worldwide. The aim of this study was to investigate the antimicrobial effect of xylitol in case of Escherichia coli, Salmonella Enteritidis, Staphylococcus aureus, Listeria monocytogenes, Candida albicans and Penicillinum expansum. The tests were performed at 22 °C and 37 °C, except for Penicillinum expansum that was examined only at 22 °C. As culture medium Tryptic Soy Broth was used supplemented with 2%, 4%, 6%, 8% and 10% xylitol, respectively. The monitoring of microbial growth was performed by redox potential measurement which is suitable for the detection of inhibition. According to the results obtained from the experiment, the four bacteria showed pronounced growth inhibition at 22 °C. The inhibition effect was increased lineary by the xylitol concentration. The same effect was not detected at 37 °C. In case of Candida albicans a slight inhibition could be observed; definitively not in the extent that would prone to therapeutic use, but it might be enough for prophylaxis in the future. The most promising result was achieved with Penicillinum expansum. Although the results of the experiment are quite promising, several more detailed studies should follow before xylitol can settle into our everyday life in its new role. Before it is applied as a preservative, added to foods, pharmaceuticals, biological samples or paints further investigations are highly recommended. © Carl Hanser Verlag GmbH & Co. KG. Source

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