Microbial investigation of cleanability of different plastic and metal surfaces used by the food industry.
Cleanability
Conveyor belts
Food industry
Hygienic design
Nano materials
Stainless steel finishes
Journal
Journal of food science and technology
ISSN: 0022-1155
Titre abrégé: J Food Sci Technol
Pays: India
ID NLM: 0056471
Informations de publication
Date de publication:
Oct 2023
Oct 2023
Historique:
revised:
18
05
2023
accepted:
28
05
2023
medline:
21
8
2023
pubmed:
21
8
2023
entrez:
21
8
2023
Statut:
ppublish
Résumé
Different conveyor belt materials used by the meat and other food industries were compared, regarding their cleanability as bacterial reduction rates in relation to their surface topography. Eleven thermoplastic polymers, four stainless steels, and five aluminized nanostructured surfaces were investigated under laboratory conditions. Cleanings were conducted with water only, and with an alkaline foam detergent. Overall, scanning electron microscopy revealed remarkable differences in the surface topography of the tested surfaces. Water cleaning results showed that nanostructured aluminized surfaces achieved significantly higher cleanability rates compared to the eight thermoplastic surfaces, as well as the glass-bead blasted rough stainless steel. Thermoplastic surfaces showed overall low cleanability rates when cleaned with alkaline detergent, while stainless steel and nanoporous aluminum showed high variations. Overall, nanoporous aluminum showed promising results as it can be used to coat conveyor belts. However, compatibility with cleaning detergent and sensitivity to scratches must be further investigated. Overall, it can be concluded that cleanability is not only influenced by surface roughness, but also by the overall surface finish, scratches, and defects. The online version contains supplementary material available at 10.1007/s13197-023-05778-0.
Identifiants
pubmed: 37599844
doi: 10.1007/s13197-023-05778-0
pii: 5778
pmc: PMC10439085
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2581-2590Informations de copyright
© The Author(s) 2023.
Déclaration de conflit d'intérêts
Conflict of interestThe authors declare no conflicts of interests.
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