Analysis of Apple Candying by Microwave Spectroscopy

[EN] Process control in the industry requires fast, safe and easily applicable methods. In this sense, the use of dielectric spectroscopy in the microwave range can be a great opportunity to monitor processes in which the mobility and quantity of water is the main property to produce a quality and s...

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Detalles Bibliográficos
Autores: Tomas-Egea, Juan A., Fito, Pedro J.|||0000-0001-9666-276X, Castro Giraldez, Marta|||0000-0001-9360-6869
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/202088
Acceso en línea:https://riunet.upv.es/handle/10251/202088
Access Level:acceso abierto
Palabra clave:Candying
Dehydration
Dielectric spectroscopy
Hot air drying
Isotherms
Permittivity
Sucrose
TECNOLOGIA DE ALIMENTOS
Descripción
Sumario:[EN] Process control in the industry requires fast, safe and easily applicable methods. In this sense, the use of dielectric spectroscopy in the microwave range can be a great opportunity to monitor processes in which the mobility and quantity of water is the main property to produce a quality and safety product. The candying of fruits is an operation in which the samples are first osmotically dehydrated and then exposed to a hot air-drying operation. This process produces changes in both the structure of the tissue and the relationships between water, the solid matrix and the added soluble solids. The aim of this paper is to develop a dielectric tool to predict the water/sucrose states throughout the candying of apple, by considering the complexity of the tissue and describing the different transport phenomena and the different transition processes of the sucrose inside the sample.