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Brazilian Archives of Biology and Technology

versão impressa ISSN 1516-8913


SILVA, Annelisa Farah da et al. In vitro inhibition of adhesion of Escherichia coli strains by Xylitol. Braz. arch. biol. technol. [online]. 2011, vol.54, n.2, pp. 235-241. ISSN 1516-8913.

The present study aimed to evaluate xylitol's antimicrobial and anti-adherence activities on Escherichia coli (ATCC 8739) and on another clinical strain enteropathogenic E. coli (EPEC). In vitro minimum inhibitory concentration (MIC) test and adhesion assays were performed using 0.5, 2.5 and 5.0% xylitol. It was found that xylitol did not have antimicrobial properties on these strains. The scanning electron microscopy (SEM) demonstrated that the slides treated with xylitol had a significant reduction in the number of bacilli and the inhibition of microbial adhesion was probably the xylitol's mechanism of action. Xylitol could be a possible alternative on the control of E. coli infections.

Palavras-chave : Bacterial adhesion; Escherichia coli; Scanning electron microscopy; Xylitol.

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