Equilibrium isotherms and isosteric heat of pepper variety bico (Capsicum chinense Jacq.)

During processing, the storage requires attention, since the moisture content is a major factor that influences the quality of raw materials and manufactured products. Equilibrium isotherm represents the relationship between the material moisture content and water activity for a given temperature, p...

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Detalles Bibliográficos
Autores: Santos, Philipe dos, Silva, Fabrício Schwanz da, Porto, Alexandre Gonçalves, Zela, Sandro Pioli, Paglarini, Camila de Souza
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Brasil
Institución:Universidade Estadual de Maringá (UEM)
Repositorio:Acta scientiarum. Technology (Online)
Idioma:inglés
OAI Identifier:oai:periodicos.uem.br/ojs:article/19801
Acceso en línea:http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/19801
Access Level:acceso abierto
Palabra clave:shape
moisture content
GAB model
isosteric heat
ciência e tecnologia de alimentos
Descripción
Sumario:During processing, the storage requires attention, since the moisture content is a major factor that influences the quality of raw materials and manufactured products. Equilibrium isotherm represents the relationship between the material moisture content and water activity for a given temperature, providing important information for use in industrial operations such as drying and storage. This study aimed to determine the equilibrium isotherms of peppers variety bico (Capsicum chinense Jacq.) in whole and paste forms, calculate the isosteric heat of desorption and determine its behavior. To this end, we used six mathematical models to fit experimental data of desorption isotherms. The GAB model fitted well the experimental desorption data of pepper variety bico, in paste and whole forms. The isosteric heat obtained for the whole form was higher than for the paste form.