Moisture sorption isotherms of castor beans. Part 2: Thermodynamic properties

ABSTRACT Knowledge on the water sorption within agricultural products is extremely important for decision making during post-harvest procedures. In order to improve this knowledge, thermodynamic properties regarding water sorption provide useful data. Thermodynamic properties of castor beans, relate...

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Main Authors: André L. D. Goneli, Paulo C. Corrêa, Gabriel H. H. de Oliveira, Ana P. L. R. de Oliveira, Roberto C. Orlando
Format: Article
Language:English
Published: Universidade Federal de Campina Grande
Series:Revista Brasileira de Engenharia Agrícola e Ambiental
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000800757&lng=en&tlng=en
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author André L. D. Goneli
Paulo C. Corrêa
Gabriel H. H. de Oliveira
Ana P. L. R. de Oliveira
Roberto C. Orlando
author_facet André L. D. Goneli
Paulo C. Corrêa
Gabriel H. H. de Oliveira
Ana P. L. R. de Oliveira
Roberto C. Orlando
author_sort André L. D. Goneli
collection DOAJ
description ABSTRACT Knowledge on the water sorption within agricultural products is extremely important for decision making during post-harvest procedures. In order to improve this knowledge, thermodynamic properties regarding water sorption provide useful data. Thermodynamic properties of castor beans, related to sorption, were determined. Static gravimetric technique under different conditions of temperature (25, 35, 45 and 55 ± 1 °C) was used. Saturated salt solutions in the range of 37-87% ± 2% were utilized to create the required controlled humidity environment. After the sorption procedure, differential enthalpy, differential entropy and Gibbs free energy of this process were calculated and decreased with increased values of equilibrium moisture content.
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institution Kabale University
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publisher Universidade Federal de Campina Grande
record_format Article
series Revista Brasileira de Engenharia Agrícola e Ambiental
spelling doaj-art-2e8712f89bde4cfebf09924d9ba7e01c2025-08-20T03:55:07ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192920875776210.1590/1807-1929/agriambi.v20n8p757-762S1415-43662016000800757Moisture sorption isotherms of castor beans. Part 2: Thermodynamic propertiesAndré L. D. GoneliPaulo C. CorrêaGabriel H. H. de OliveiraAna P. L. R. de OliveiraRoberto C. OrlandoABSTRACT Knowledge on the water sorption within agricultural products is extremely important for decision making during post-harvest procedures. In order to improve this knowledge, thermodynamic properties regarding water sorption provide useful data. Thermodynamic properties of castor beans, related to sorption, were determined. Static gravimetric technique under different conditions of temperature (25, 35, 45 and 55 ± 1 °C) was used. Saturated salt solutions in the range of 37-87% ± 2% were utilized to create the required controlled humidity environment. After the sorption procedure, differential enthalpy, differential entropy and Gibbs free energy of this process were calculated and decreased with increased values of equilibrium moisture content.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000800757&lng=en&tlng=enRicinus communis L.moisture contententhalpy–entropy compensation theory
spellingShingle André L. D. Goneli
Paulo C. Corrêa
Gabriel H. H. de Oliveira
Ana P. L. R. de Oliveira
Roberto C. Orlando
Moisture sorption isotherms of castor beans. Part 2: Thermodynamic properties
Revista Brasileira de Engenharia Agrícola e Ambiental
Ricinus communis L.
moisture content
enthalpy–entropy compensation theory
title Moisture sorption isotherms of castor beans. Part 2: Thermodynamic properties
title_full Moisture sorption isotherms of castor beans. Part 2: Thermodynamic properties
title_fullStr Moisture sorption isotherms of castor beans. Part 2: Thermodynamic properties
title_full_unstemmed Moisture sorption isotherms of castor beans. Part 2: Thermodynamic properties
title_short Moisture sorption isotherms of castor beans. Part 2: Thermodynamic properties
title_sort moisture sorption isotherms of castor beans part 2 thermodynamic properties
topic Ricinus communis L.
moisture content
enthalpy–entropy compensation theory
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000800757&lng=en&tlng=en
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AT anaplrdeoliveira moisturesorptionisothermsofcastorbeanspart2thermodynamicproperties
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