Effects of natural antimicrobials on bacterial cell hydrophobicity, adhesion, and zeta potential.
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.
Marija
M
Kurinčič
Barbara
B
Jeršek
Anja
A
Klančnik
Sonja Smole
SS
Možina
Rok
R
Fink
Goran
G
Dražić
Peter
P
Raspor
Klemen
K
Bohinc
D000890:Anti-Infective Agents / Q000494:pharmacology*; D001409:Bacillus cereus / Q000187:drug effects; D001422:Bacterial Adhesion / Q000187:drug effects*; D002392:Catechin / Q000031:analogs & derivatives / Q000494:pharmacology; D002934:Cinnamates / Q000494:pharmacology*; D003373:Coumaric Acids / Q000494:pharmacology*; D053630:Depsides / Q000494:pharmacology*; D005506:Food Contamination / Q000517:prevention & control; D059022:Food Safety / Q000379:methods; D006090:Gram-Negative Bacteria / Q000187:drug effects*; D006094:Gram-Positive Bacteria / Q000187:drug effects*; D057927:Hydrophobic and Hydrophilic Interactions / Q000187:drug effects*; D011137:Polystyrenes; D000097123:Rosmarinic Acid
D000890:Anti-Infective Agents; D002392:Catechin; D002934:Cinnamates; D003373:Coumaric Acids; D053630:Depsides; D011137:Polystyrenes; D000097123:Rosmarinic Acid; C004999:ferulic acid; C045651:epigallocatechin gallate