Effects of natural antimicrobials on bacterial cell hydrophobicity, adhesion, and zeta potential

  • Marija Kurinčič Dept. of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana
  • Barbara Jeršek Faculty of Health Sciences, University of Ljubljana, Zdravstvena 5, 1000 Ljubljana
  • Anja Klančnik Faculty of Health Sciences, University of Ljubljana, Zdravstvena 5, 1000 Ljubljana
  • Sonja Smole-Možina Faculty of Health Sciences, University of Ljubljana, Zdravstvena 5, 1000 Ljubljana
  • Rok Fink Faculty of Health Sciences, University of Ljubljana, Zdravstvena 5, 1000 Ljubljana
  • Goran Dražić Institute Jožef Stefan, Jamova 39, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana
  • Peter Raspor University of Primorska Faculty of Health Sciences, Polje 42, 6310 Izola
  • Klemen Bohinc Faculty of Health Sciences, University of Ljubljana, Zdravstvena 5, 1000 Ljubljana
Keywords: epigallocatechin gallate, ferulic acid, polystyrene, rosmarinic acid

Abstract

Interactions between bacterial cells and contact materials play an important role in food safety and technology. As bacterial strains become ever more resistant to antibiotics, the aim of this study was to analyse adhesion of selected foodborne bacterial strains on polystyrene surface and to evaluate the effects of natural antimicrobials on bacterial cell hydrophobicity, adhesion, and zeta potential as strategies of adhesion prevention. The results showed strain-specific adhesion rate on polystyrene. The lowest and the highest adhesion were found for two B. cereus lines. Natural antimicrobials ferulic and rosmarinic acid substantially decreased adhesion, whereas the effect of epigallocatechin gallate was neglectful. Similar results were found for the zeta potential, indicating that natural antimicrobials reduce bacterial adhesion. Targeting bacterial adhesion using natural extracts we can eliminate potential infection at an early stage. Future experimental studies should focus on situations that are as close to industrial conditions as possible.
Published
2016-03-29
How to Cite
1.
Kurinčič M, Jeršek B, Klančnik A, Smole-Možina S, Fink R, Dražić G, Raspor P, Bohinc K. Effects of natural antimicrobials on bacterial cell hydrophobicity, adhesion, and zeta potential. Arh Hig Rada Toksikol [Internet]. 2016Mar.29 [cited 2021Oct.23];67(1). Available from: https://arhiv.imi.hr/index.php/arhiv/article/view/452
Section
Original article