Journal
JOURNAL OF FOOD ENGINEERING
Volume 106, Issue 1, Pages 102-110Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2011.04.022
Keywords
Salting kinetics; KCl diffusion; NaCl diffusion; Pork meat salting; Low salt; Modelling
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Funding
- Ministerio de Ciencia y Tecnologia [AGL2004-05064-C02, MTM2009-13832, CSD2006-32]
- European Union
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We describe and quantify salt transfer processes during food processing using mathematical models. Our approach incorporates as novel elements: (i) a more rigorous determination of the salt diffusion kinetics by using the salt concentration of the liquid phase instead of the salt concentration of the overall samples, (ii) the use of novel, more accurate equilibrium conditions, (iii) the consideration of mass transfer coefficients in the boundary and (iv) the consideration of diffusion and salt transfer coefficients as functions of time. The methodology is used to determine the NaCl and KCl diffusion and transport coefficients during pork meat salting. Our results, combining experimental studies with a numerical study of a mathematical optimization problem point out the limitations of purely diffusive models and the need for more sophisticated models accounting for more physical and chemical processes taking place in meat during salting. (C) 2011 Elsevier Ltd. All rights reserved.
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