Cleaning-in-Place
| Autor: | Christine Faille, G. Antonini, C. Lelièvre, Thierry Benezech |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Waste management
biology Chemistry General Chemical Engineering Microorganism fungi Kinetics Bacillus cereus Pulp and paper industry biology.organism_classification Biochemistry Spore chemistry.chemical_compound Reaction rate constant Flow conditions Sodium hydroxide Deposition (phase transition) Food Science Biotechnology |
| Zdroj: | Food and Bioproducts Processing. 80:305-311 |
| ISSN: | 0960-3085 |
| DOI: | 10.1205/096030802321154826 |
| Popis: | In food industries, thorough cleaning -in-place procedures for the unheated surfaces of food processing equipment are required to ensure the safety of food products by the removal of microorganisms. The aim of this work is to model the removal kinetics of Bacillus spores during a cleaning-in-place procedure. These spores were chosen for their occurrence in dairies. The removal of Bacillus cereus spores was found to be strongly dependent on both chemical action (sodium hydroxide), which lowers the adhesion strength of spores onto hard surfaces, and hydrodynamic conditions during cleaning through wall shear stress. A simple model (first-order reaction) assuming a process combining removal and deposition during cleaning was detailed and experimentally confirmed. In addition, a significant effect on the effective removal rate constant by both the flow conditions applied during the soiling procedure and applied during cleaning was observed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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