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| Pacheco,Ana Claudia Werner; Luz,Gianini Regina; Polon,Paulo Eduardo; Jorge,Luiz Mário de Matos; Paraíso,Paulo Roberto. |
| The aim of this work was to study the drying curves and equilibrium isotherms of extruded fish feed. The drying curves were determined at air temperatures of 50, 60, 70 and 80°C and airflow velocities of 1.5, 2.5 and 3.5 m/s). The equilibrium isotherms of relative humidity of air were obtained between 10 and 80% at 30, 40, 50, and 70°C. The experimental data were fitted for non-linear regression by using Statistica® to the models reported in the literature. The results showed that the drying curves and the equilibrium isotherms were significantly influenced by variations of the air temperature in a similar way to solid materials as described in the literature. The statistical results for models of Page and Peleg showed that the fitting of the experimental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extruded fish feed; Adsorption isotherms; Equilibrium moisture. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300020 |
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| Coutinho,Mônica Ronobo; Conceição,Wagner André dos Santos; Paraíso,Paulo Roberto; Andrade,Cid Marcos Gonçalves; Omoto,Edilson Sadayuki; Jorge,Regina Maria Matos; Maciel Filho,Rubens; Jorge,Luiz Mario de Matos. |
| A comparative analysis of the theoretical-experimental study, developed by Hsu on the hydration of Amsoy 71 soybean grain, was performed through several soaking experiments using CD 202 soybean at 10, 20, 30, 40, and 50 °C, measuring moisture content over time. The results showed that CD 202 soybean equilibrium moisture content, Xeq, does not depend on temperature and is 21% higher than that found by Hsu, suggesting that soybean cultivar exerts great influence on Xeq. The Hsu model was numerically solved and its parameters were adjusted by the least squares method, with maximum deviations of +/- 10% relative to the experimental values. The limiting step in the mass transfer process during hydration corresponds to water diffusion inside the grain, leading... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soaking; Mathematical modeling; Distributed parameters; Mass diffusivity; Equilibrium moisture. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612010000100003 |
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