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Información tecnológica

versão On-line ISSN 0718-0764

Resumo

ARIAS, Lorena; PEREA, Yorledis  e  ZAPATA, José E. Kinetic of the Mass Transfer Process in the Osmotic Dehydration of Mango (Mangifera indica L.) var. Tommy Atkins as Function of the Temperature. Inf. tecnol. [online]. 2017, vol.28, n.3, pp.47-58. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642017000300006.

The kinetics of the mass transfer process during the osmotic dehydration of mango sheets (Mangifera indica L.) var. Tomy Atkins was studied. The syrup/fruit ratio was 3/1 during the six hour process. Three mathematical models to describe the kinetics of water loss and solid gain at different temperatures (20, 35 and 50 °C) and sucrose concentrations (45 and 60 %) were used compared to each other. The empirical model of Azuara, a phenomenological model from solution of Fick's second law, and Peleg's empiric model were used. The results shown that empirical model of Peleg gave more accurate results than the empirical model of Azuara and the phenomenological model from solution of Fick's second law. Additionally, an Arrhenius equation for the effective diffusion coefficient as a function of the temperature function (for 60 °Bx concentration) was fitted.

Palavras-chave : effective diffusion; Fick’s second law; empirical models; phenomenological models.

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