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Impact of growth temperature on the adhesion of colistin-resistant Escherichia coli strains isolated from pigs to food-contact-surfaces

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Abstract

This study investigated the effect of the growth temperature (20 and 37 °C) of Escherichia coli strains isolated from pigs on their adhesion to stainless steel and polycarbonate. This study also evaluated the ability of the DLVO and XDLVO mathematical models to predict this adhesion. The rise of growth temperature from 20 to 37 °C significantly influenced the adhesion of studied E. coli strains. The data also underlined that the mathematical prediction did not fully match with the experimental bacterial adhesion to surfaces. Furthermore, results showed that the colistin-resistant and sensitive E. coli strains adhesion depends on the type of abiotic surface. Based on these results, the mathematical models are limited in the prediction of the bacterial adhesion to abiotic surfaces. The surface roughness is a major parameter of the bacterial adhesion and should be included in the future mathematical models predicting the bacterial adhesion.

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Acknowledgements

This work was carried out within the framework of an ALIBIOTECH (Agroalimentaire et Biotechnologie, Nord Pas-de-Calais region) program. The authors also thank the Haut de France region and FEDER (Fonds européen de développement régional) for their financial support. The authors are grateful to Isabelle Kempf for providing the E. coli UB10184 and UB05289 and P4E3A3 strains.

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Correspondence to Nour-Eddine Chihib.

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The authors declare that they have no competing interests.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Communicated by Erko Stackebrandt.

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Abdallah, M., Mourad, R., khelissa, S.O. et al. Impact of growth temperature on the adhesion of colistin-resistant Escherichia coli strains isolated from pigs to food-contact-surfaces. Arch Microbiol 201, 679–690 (2019). https://doi.org/10.1007/s00203-019-01632-0

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  • DOI: https://doi.org/10.1007/s00203-019-01632-0

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