Isosteric heat, entropy, and gibbs free energy of pumpkin seeds (Cucurbita moschata)

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorTeixeira, Luciana P.-
Autor(es): dc.creatorAndrade, Ednilton T. de-
Autor(es): dc.creatorDevilla, Ivano A.-
Data de aceite: dc.date.accessioned2026-02-09T11:29:13Z-
Data de disponibilização: dc.date.available2026-02-09T11:29:13Z-
Data de envio: dc.date.issued2019-03-29-
Data de envio: dc.date.issued2019-03-29-
Data de envio: dc.date.issued2018-01-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/33341-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1141799-
Descrição: dc.descriptionTo maintain seed and soil quality of pumpkin, energy knowledge associated with processing and storage stages is strategic for the optimization of the thermodynamic processes needed for product stabilization. Thus, the objective of this study was to determine isosteric heat, differential entropy, and Gibbs free energy within a temperature range from 20 to 70° C, and relative air humidity levels between 10.75 and 85.11%. The study was based on empirical data for water activity determination. As a result, we verified that as moisture content decreased, the integral isosteric heat of the product increased from 2502.35 to 6231.17 kJ kg-1, differential entropy raised from 1.18 to 12.43 kJ kg-1 K-1, and Gibbs free energy ranged from -243.84 to -432.59 kJ kg-1. Thus, we concluded that the lower the water availability in seeds, the greater the energetic requirement for its removal, as there is a major interaction between water and the product (seeds), indicating an increasingly less spontaneous desorption process.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherAssociação Brasileira de Engenharia Agrícola-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceEngenharia Agrícola-
Palavras-chave: dc.subjectThermodynamic properties-
Palavras-chave: dc.subjectWater availability in seeds-
Palavras-chave: dc.subjectPropriedades termodinâmicas-
Palavras-chave: dc.subjectDisponibilidade de água nas sementes-
Título: dc.titleIsosteric heat, entropy, and gibbs free energy of pumpkin seeds (Cucurbita moschata)-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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