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- Title
Effectiveness of nanoscale silicon dioxide-coated picker fingers on Salmonella Enteritidis and Escherichia coli.
- Authors
Schumann-Muck, Felicitas Maria; Blaeske, Victoria; Braun, Peggy G.; Koethe, Martin
- Abstract
In poultry slaughtering, cross-contamination with Salmonella Enteritidis is a constant ongoing challenge. Interaction between food contact surfaces can potentially transfer pathogenic material like feces from carcasses to another one. One approach to break this chain is to modify surfaces that frequently come into contact with the animal during the slaughtering process. Surface alterations like nanoscale coatings have already been successfully applied in various fields to lower the bacterial load. The aim of the study was to compare bacterial attachment, proliferation and detachment of Salmonella Enteritidis and Escherichia coli on uncoated and on nanoscale silica coated rubber picker fingers at laboratory scale. It was shown that both target organisms did not adhere less to coated surface than to uncoated picker fingers, whereas no difference in bacterial growth or detachment was detected. It can be concluded that the coating used in this study did not contribute to a reduction of the bacterial load on this surface in the specific experimental setups employed. Further studies should focus on whether nanoscale surface modifications achieve improved results under more practical conditions and whether other factors such as surface durability can be influenced by a coating.
- Subjects
NANOSILICON; ESCHERICHIA coli; BACTERIAL adhesion; BACTERIAL cell surfaces; SALMONELLA enteritidis; BACTERIAL growth; EDIBLE coatings
- Publication
European Food Research & Technology, 2024, Vol 250, Issue 1, p203
- ISSN
1438-2377
- Publication type
Article
- DOI
10.1007/s00217-023-04378-8