Effect of chemical compounds in water on surface properties and adhesion capacity of Pseudomonas aeruginosa and Escherichia coli in turbulent conditions

Authors

  • Mourad Elgoulli Bioprocess and Bio-interfaces Laboratory, Faculty of Science and Techniques, Sultan Moulay Slimane University, BP 523 Beni Mellal, Morocco
  • Hafida Zahir Bioprocess and Bio-interfaces Laboratory, Faculty of Science and Techniques, Sultan Moulay Slimane University, BP 523 Beni Mellal, Morocco
  • Oubid Aitlahbib Bioprocess and Bio-interfaces Laboratory, Faculty of Science and Techniques, Sultan Moulay Slimane University, BP 523 Beni Mellal, Morocco
  • Mostafa Ellouali Bioprocess and Bio-interfaces Laboratory, Faculty of Science and Techniques, Sultan Moulay Slimane University, BP 523 Beni Mellal, Morocco
  • El Mostafa Mliji Bioprocess and Bio-interfaces Laboratory, Faculty of Science and Techniques, Sultan Moulay Slimane University, BP 523 Beni Mellal, Morocco
  • Hassan Latrache Bioprocess and Bio-interfaces Laboratory, Faculty of Science and Techniques, Sultan Moulay Slimane University, BP 523 Beni Mellal, Morocco

DOI:

https://doi.org/10.17159/wsa/2021.v47.i4.3859

Keywords:

type of water, type of materials, bacterial adhesion, physicochemical properties

Abstract

The aim of this study was to evaluate the effect of chemical compounds found in different water types on the physico-chemical properties of bacteria and the adhesion of two strains (Pseudomonas aeruginosa and Escherichia coli) to glass, PVC and stainless steel. P. aeruginosa and E. coli were exposed to two sterile water types (distilled water and tap water) for 3 h. Contact angle measurements were used to assess the surface properties of both strains and coupons of different materials. The hydrophobicity and the electron donor properties of the bacterial strains seems to increase when exposed to sterile tap water compared to distilled water, while the electron acceptor property is largely unchanged. The adhesion tests were carried out in a water circuit creating turbulence. The number of adhered cells was determined after their detachment from the coupons using an ultrasonic bath for 2 min. The findings showed that the type of water affects the adhesion of both strains, which is stronger in tap water than distilled water. A correlation test to determine the surface property that governs adhesion in these conditions, suggested that the adhesion is mainly governed by hydrophobicity.

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Published

2021-10-28

Issue

Vol. 47 No. 4 October (2021): Water SA

Section

Research paper

License

Copyright (c) 2021 Mourad Elgoulli, Hafida Zahir, Oubid Aitlahbib, Mostafa Ellouali, El Mostafa Mliji, Hassan Latrache

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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The content of this journal is licensed under a Creative Commons Attribution Licence.  Users are permitted to read, download, copy, distribute, print, search or link to the full texts of the articles in this journal under the terms of this Licence, without asking prior permission from the publisher or the author, provided the source is attributed. Copyright is retained by the authors.

How to Cite

Mourad Elgoulli (2021) “Effect of chemical compounds in water on surface properties and adhesion capacity of Pseudomonas aeruginosa and Escherichia coli in turbulent conditions”, Water SA, 47(4 October). doi:10.17159/wsa/2021.v47.i4.3859.