| Registro completo |
| Provedor de dados: |
Agronomy
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| País: |
Brazil
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| Título: |
Thermodymnamic properties of crambe fruits
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| Autores: |
Oliveira, Daniel Emanuel Cabral de
Resende, Osvaldo
Costa, Lílian Moreira
Silva, Hellismar Wakson da
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| Data: |
2017-05-17
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| Ano: |
2017
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| Palavras-chave: |
5.03.03.00-7 Crambe abyssinica
Enthalpy
Entropy
Gibbs free energy
Enharia de Processamento de Produtos Agrícolas
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| Resumo: |
This study aimed to determine and evaluate the thermodynamic properties of crambe fruit at different equilibrium moisture contents. The dynamic-gravimetric method was used to collect experimental data. Crambe fruits with an initial moisture content of approximately 26% db (dry basis) were used. The thin-layer desorption of the product was conducted at different controlled temperatures (25, 30, 35, 40, and 45°C) and at water activity levels ranging from 0.10 to 0.89 until the product reached the equilibrium moisture content at the specified air condition. In conclusion, the thermodynamic properties of crambe fruit are affected by temperature and moisture content. The isokinetic theory is valid for the desorption process, which is controlled by enthalpy, and the Gibbs free energy is positive at all of the tested temperatures, which indicates that water desorption is not a spontaneous process.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32516
10.4025/actasciagron.v39i3.32516
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| Editor: |
Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32516/pdf
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/32516/12803
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/32516/12804
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Agronomy; v. 39, n. 3 (2017); 291-298
Acta Scientiarum. Agronomy; v. 39, n. 3 (2017); 291-298
1807-8621
1679-9275
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| Direitos: |
Direitos autorais 2017 Acta Scientiarum. Agronomy
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