Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/52940
Type: Artigo de periódico
Title: A comparative study between ovalbumin and beta-lactoglobulin fouling in a tube hot surface
Author: Pelegrine, DHG
Gasparetto, CA
Abstract: In the present work, Ovalbumin and beta-lactoglobulin fouling phenomenon was studied, when white egg and milk flowed in the inner tube of a double tube heated by hot water which flows in the ring space between them. The fouling kinetics depends on the mass transfer effects, which is a function of protein solubility. To describe the fouling kinetics a calculus algorithm was developed, having as subsidy the protein solubility itself. The proteins solubility curves have been taken by previous works. Results showed that ovalbumin fouling was slower than beta-lactoglobulin and the time necessary for the tube's inner radius to decrease in 30% of the original radius was smaller for high temperatures, for both proteins. Besides, both ovalburnin and beta-lactoglobulin deposition was greater at the tube's entrance than in its exit. Therefore, the radius reduction was faster in that area. (c) 2005 Elsevier Ltd. All rights reserved.
Subject: fouling
solubility
ovalbumin
beta-lactoglobulin
Country: Inglaterra
Editor: Elsevier Sci Ltd
Rights: fechado
Identifier DOI: 10.1016/j.jfoodeng.2005.01.039
Date Issue: 2006
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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