Title :

Wet foam flow: A suitable method for improving surface hygiene in the food industry

Author(s) :

Dallagi, Heni [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Faille, Christine [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Bouvier, Laurent [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Deleplace, Maureen [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Dubois, Thomas [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Aloui, Fethi [Auteur]
Benezech, Thierry [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Deleplace, Maureen [Auteur]

Journal title :

Journal of Food Engineering

Abbreviated title :

Journal of Food Engineering

Volume number :

322

Pages :

110976

Publisher :

Elsevier BV

Publication date :

2022-06

ISSN :

0260-8774

English keyword(s) :

Flow foam cleaning in place
Bacillus spores
Conductimetry
Polarography
Bubble size
Wall shear stress

HAL domain(s) :

Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
Sciences de l'ingénieur [physics]/Génie des procédés
Sciences du Vivant [q-bio]/Ingénierie des aliments
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire/Biologie moléculaire

English abstract : [en]

In the food industry, the cleaning of contaminated surfaces requires new strategies to be adopted which can provide greater cleaning efficiency with minimal energy and water consumption. The use of wet foams was proposed ...
Show more >In the food industry, the cleaning of contaminated surfaces requires new strategies to be adopted which can provide greater cleaning efficiency with minimal energy and water consumption. The use of wet foams was proposed to clean stainless steel surfaces contaminated by droplets containing Bacillus spores. Methods such as polarography, conductimetry and foam structure identification were used. Foam flow conditions with varying wall shear stresses and bubble sizes were observed to measure their impacts on surface contaminant removal kinetics. Compared to conventional cleaning-in-place method, foam flow more effectively removed both hydrophilic and hydrophobic spores. The combination of high shear stress and small bubble sizes (<0.2 mm) showed promise for improving the cleaning efficiency of the foam. Mechanisms such as fluctuation in local stresses, or in the liquid film thickness between the bubbles and the steel wall induced by bubble passage, foam imbibition and liquid film drainage were then investigated.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Processus aux Interfaces et Hygiène des Matériaux (PIHM)

Submission date :

2022-02-01T08:56:40Z
2022-02-01T15:04:31Z