Quantification of microstructural changes during first stage air drying of grape tissue

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dc.contributor.authorRamos, IN
dc.contributor.authorSilva, CLM
dc.contributor.authorSereno, AM
dc.contributor.authorAguilera, JM
dc.date.accessioned2024-01-10T12:07:52Z
dc.date.available2024-01-10T12:07:52Z
dc.date.issued2004
dc.description.abstractMicrostructural changes in cells of Ruby grape (Vitis vinifera) quarters were monitored during first stage of convective air drying, under a stereo-microscope. A gradual overall shrinkage of grape cells was observed during the process. The cellular parameters: area, perimeter, major and minor axis length, Feret diameter, elongation, roundness and compactness, were quantified by image analysis. It was verified that cell dimensions suffered modifications during drying, but their shape remained unchanged. These microstructural changes showed a smooth exponential decrease with time, and a first-order kinetic model was satisfactorily fitted to the data. Temperature increased the rate of cellular shrinkage and this effect followed an Arrhenius type behaviour. Increasing temperature from 20 to 60 degreesC resulted in a 350% increase of the area change rate. For the parameters related to cellular dimensions, the magnitude of the values were 10(-3) min(-1) for the rate of change at 40 degreesC and 3 kJ/mol for the activation energy. (C) 2003 Elsevier Ltd. All rights reserved.
dc.fechaingreso.objetodigital2024-04-11
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/S0260-8774(03)00227-9
dc.identifier.eissn1873-5770
dc.identifier.issn0260-8774
dc.identifier.urihttps://doi.org/10.1016/S0260-8774(03)00227-9
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76332
dc.identifier.wosidWOS:000188089300007
dc.information.autorucIngeniería;Aguilera J;S/I;99054
dc.issue.numero2
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final164
dc.pagina.inicio159
dc.publisherELSEVIER SCI LTD
dc.revistaJOURNAL OF FOOD ENGINEERING
dc.rightsacceso restringido
dc.subjectmicrostructure
dc.subjectshrinkage
dc.subjectkinetics
dc.subjectmodelling
dc.subjectdrying
dc.subjectgrapes
dc.subjectstereo-microscopy
dc.titleQuantification of microstructural changes during first stage air drying of grape tissue
dc.typeartículo
dc.volumen62
sipa.codpersvinculados99054
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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