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	Provedor de dados Rev. Ciênc. Agron. (1) Ciência e Agrotecnologia (1) Autor Zaidan,Iasmine Ramos (2) Baptestini,Fernanda Machado (1) Campos,Renata Cássia (1) Correa,Paulo César (1) Corrêa,Paulo Cesar (1) Junqueira,Mateus da Silva (1) Leite,Rildo Araújo (1) Ramos,Afonso Mota (1) Zaidan,Úrsula Ramos (1) Mais... Palavra-chave Entropy (2) Annona muricata L (1) Enthalpy (1) Gibbs free energy (1) Gibbs free energy. (1) Hygroscopic equilibrium (1) Isosteric heat (1) Monolayer (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2019 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última GAB model and the thermodynamic properties of moisture sorption in soursop fruit powder Rev. Ciênc. Agron. Baptestini,Fernanda Machado; Corrêa,Paulo Cesar; Ramos,Afonso Mota; Junqueira,Mateus da Silva; Zaidan,Iasmine Ramos. ABSTRACT The aim of this study was to model and determine the thermodynamic properties of moisture sorption in soursop fruit powder. The isotherms were determined by the static method at temperatures of 10, 20, 30, 40 and 50 °C, and a water activity of between 0.113 and 0.868 (decimal). The GAB model effectively described the moisture sorption phenomenon of soursop powder. The monolayer moisture content ranged from 12.589 to 9.109% db. The enthalpy values related to the GAB model were negative, with -2581.035 kJ kg-1 for C0 and -107,758 kJ kg-1 for K0. The isosteric heat of sorption, entropy and Gibbs free energy had a high correlation with the equilibrium moisture content, and the correlation between enthalpy and entropy was confirmed for moisture... Tipo: Info:eu-repo/semantics/article Palavras-chave: Monolayer; Entropy; Gibbs free energy; Annona muricata L. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100401 Moisture sorption isotherms of sunflower seeds: Thermodynamic analysis Ciência e Agrotecnologia Campos,Renata Cássia; Correa,Paulo César; Zaidan,Iasmine Ramos; Zaidan,Úrsula Ramos; Leite,Rildo Araújo. ABSTRACT The study of the thermodynamic properties provides the knowledge of the sorbent affinity by the water and the spontaneity of the sorption process, important to design drying equipment and to predict hygroscopic behavior during storage. This work aimed to determine and evaluate isotherms of hygroscopic equilibrium and thermodynamic properties for different equilibrium conditions (water contents and temperatures) in sunflower seeds, using the indirect static method. Sunflower seeds with initial water content of 0.164 (decimal, dry basis - d.b.) were used. Fifteen mathematical models were tested for hygroscopic equilibrium modeling, and the Smith model presented the best fit. It was verified that the thermodynamic properties were influenced by the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Hygroscopic equilibrium; Isosteric heat; Enthalpy; Entropy; Gibbs free energy.. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100227 Registros recuperados: 2 Primeira ... 1 ... Última

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