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INFLUENCE OF SOLUBLE PROTEINS ON THE ADHERENCE OF PARTICULATE SOILS
Toure, Yetioman; Rouxhet, Paul; Dupont-Gillain, Christine et al.
2013In Malayeri, Reza; Watkinson, Paul A.; Müller-Steinhagen, Hans (Eds.) Proceedings of International Conference on Heat Exchanger Fouling and Cleaning - 2013 (Peer-reviewed)
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Keywords :
Soluble protein; ; particulate soils; ; adherence and removal
Abstract :
[en] Adsorbed compounds from food and pharmaceutical mixtures may influence interactions at interfaces and thus fouling and cleaning. In this study, quartz particles (10 to 30µm) were used as a model soil for examining the effect of dissolved proteins on the cleanability of substrates after soiling and drying. Glass and stainless steel pretreated by UV-Ozone (StSteel-UVO) were used as model hydrophilic substrates, while hydrophobic substrates were represented by stainless steel cleaned with ethanol (StSteel-Eth) and polystyrene. BSA and β-LGB were used as proteins. The quartz suspensions used for soiling were prepared in pure water and in a solution of each protein. After soiling and drying, the cleanability was evaluated using a radial-flow cell, with pure water as the cleaning fluid. The presence of proteins in the suspension used for soiling hydrophilic substrates (Glass and StSteel-UVO), decreased the adherence of quartz particles. Its effect was less marked and tended to be opposite for less hydrophilic substrates (StSteel-Eth, Polystyrene). The adherence cannot be explained by a simple relation with the contact angle. Other factors may be the solution surface tension itself and the protein behavior at the interfaces created by drying and by rehydratation during cleaning. When considering the influence of substrate on soiling, it must be kept in mind that high surface energy solids (metals, oxides) are readily contaminated in contact with air and lose their hydrophilicity. This may improve the substrate behavior regarding cleanability with respect to particulate soil.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Toure, Yetioman ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol.
Rouxhet, Paul
Dupont-Gillain, Christine
Sindic, Marianne  ;  Université de Liège - ULiège > Chimie et bio-industries > Laboratoire Qualité et sécurité des produits agro-aliment.
Language :
English
Title :
INFLUENCE OF SOLUBLE PROTEINS ON THE ADHERENCE OF PARTICULATE SOILS
Publication date :
December 2013
Event name :
Heat Exchanger Fouling and Cleaning-2013
Event organizer :
Prof. Hans Müller-steinhagen, Dr. Malayeri, Professor A. Paul Watkinson, Dr. Fernando Aguirre, Prof. X. Dong Chen, Prof. Derek Lister, Prof. Louis F. Melo, Dr. Ian Wilson
Event place :
Budapest, Hungary
Event date :
June 09-14 2013
By request :
Yes
Audience :
International
Main work title :
Proceedings of International Conference on Heat Exchanger Fouling and Cleaning - 2013 (Peer-reviewed)
Editor :
Malayeri, Reza
Watkinson, Paul A.
Müller-Steinhagen, Hans
Publisher :
Published on line
Pages :
285-290
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 03 February 2014

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