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| Sousa, Kelly Aparecida; Resende, Osvaldo; Goneli, André Luis Duarte; Smaniotto, Thaís Adriana de Souza; Oliveira, Daniel Emanuel Cabral de. |
| The purpose of this study was to determine the thermodynamic properties of the process of water sorption in forage turnip seeds. The equilibrium moisture content of forage turnip seeds was determined by the gravimetric-dynamic method for different values of temperature and water activity. According to the results, increasing the moisture content increases the energy required for the evaporation of water in forage turnip seeds, and the values of integral isosteric heat of desorption, within the moisture content range of 3.33 to 11.30 (% d.b.), varies from 4,222.70 to 2,870.34 kJ kg-1. With the elevation in the equilibrium moisture content, there is an increase in differential entropy and Gibbs free energy, which has positive values, demonstrating... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências Ágrarias; Armazenamento de produtos agrícolas hygroscopic equilibrium; Isosteric heat; Gibbs free energy; Compensation theory Ciências Ágrarias; Armazenamento de produtos agrícolas. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19333 |
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| Corrêa, Paulo Cesar; Oliveira, Gabriel Henrique Horta de; Oliveira, Ana Paula Lelis Rodrigues de; Goneli, André Luis Duarte; Botelho, Fernando Mendes. |
| Physical and chemical alterations of agricultural products may occur during storage, leading to quantitative and qualitative losses. Thus, knowledge regarding the relationship between the product and temperature (T) and relative humidity (RH) of the environment is required in order to diminish these possible alterations. Being that stated, this work aimed to determine the most adequate mathematical model to represent the equilibrium moisture content (Xeq) of sugar beet seed, cv. “Chata do Egito”, at different T and RH. Xeq was achieved by means of static method, using saturated saline solutions, attaining RH values between 11 and 96 %. Seeds were placed inside of dissectors containing the saline solutions, afterwards stored at BOD chambers under different... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Armazenamento Beta vulgaris; Equilíbrio higroscópico; Modelagem matemática. |
| Ano: 2016 |
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/619 |
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