Multicomponent diffusion during Prato cheese ripening: mathematical modeling using the finite element method

Food Science and Technology (Campinas)

Evandro Bona¹  Rui Sergio Dos Santos Ferreira Da Silva¹  Dionísio Borsato²  Luiz Henry Monken E Silva¹  Dayanne Aline De Souza Fidelis¹ 

[1] ,Universidade Estadual de Londrina Departamento de Química Londrina PR ,Brasil

关键词: ripening;    Prato cheese;    finite element method;    multicomponent diffusion;    maturação;    queijo Prato;    método de elementos finitos;    difusão multicomponente;   

DOI  :  10.1590/S0101-20612010000400018

来源: SciELO

【 摘 要 】

The partial replacement of NaCl by KCl is a promising alternative to produce a cheese with lower sodium content since KCl does not change the final quality of the cheese product. In order to assure proper salt proportions, mathematical models are employed to control the product process and simulate the multicomponent diffusion during the reduced salt cheese ripening period. The generalized Fick's Second Law is widely accepted as the primary mass transfer model within solid foods. The Finite Element Method (FEM) was used to solve the system of differential equations formed. Therefore, a NaCl and KCl multicomponent diffusion was simulated using a 20% (w/w) static brine with 70% NaCl and 30% KCl during Prato cheese (a Brazilian semi-hard cheese) salting and ripening. The theoretical results were compared with experimental data, and indicated that the deviation was 4.43% for NaCl and 4.72% for KCl validating the proposed model for the production of good quality, reduced-sodium cheeses.

【 授权许可】

CC BY   
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