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| Guimarães,Rafaiane M.; Oliveira,Daniel E. C. de; Resende,Osvaldo; Silva,Jhessika de S.; Rezende,Thaisa A. M. de; Egea,Mariana B.. |
| ABSTRACT ‘Okara’ is the insoluble part obtained after the aqueous extraction of soybeans, generated in large quantities as a by-product of the ‘tofu’ industry or soybean water-soluble extract. This work aimed to study ‘okara’ convective drying kinetics, determine the effective diffusion coefficient, and obtain activation energy and thermodynamic properties under different drying conditions. The by-product ‘okara’ was obtained from the processing of BRS 257 soybean water-soluble extract, homogenized and dried in a forced-air oven at temperatures of 40, 50, 60 and 70 °C until constant weight. Among the analysed models, Wang & Singh was selected to represent the drying phenomenon. Effective diffusion coefficient increased with the temperature rise, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mathematical modeling; Activation energy; Diffusion coefficient. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000600418 |
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| Souza,Jéssica L. F.; Oliveira,Daniel E. C.; Plácido,Geovana R.; Egea,Mariana B.; Caliari,Márcio; Silva,Marco A. P. da. |
| ABSTRACT The objectives of this study were to fit mathematical models to the experimental data of the drying of the pequi mesocarp, determine the effective diffusion coefficient, and to obtain activation energy and thermodynamic and nutritional properties in different drying conditions. The mesocarp of pequi fruits, with an initial moisture content of 5.05 (decimal, dry basis), was dried in a forced ventilation oven at temperatures of 40, 50, 60 and 70 °C until the final moisture content of 0.15 ± 0.01 (decimal, dry basis). The mathematical models were adjusted by non-linear regression analysis using the Gauss-Newton method, considering the magnitude of the coefficient of determination (R2), the mean relative error (P) and the estimated mean error (SE).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mathematical modeling; Activation energy; Midilli model; By-product utilization. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000900655 |
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