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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/21528

    Título
    Ratiometric Oxygen Imaging to Predict Oxygen Diffusivity in Oak Wood During Red Wine Barrel Aging
    Autor
    Nevares Domínguez, Ignacio GerardoAutoridad UVA Orcid
    Torsten, Mayr
    Baró de la Fuente, Jesús ÁngelAutoridad UVA Orcid
    Ehgartner, Josef
    Álamo Sanza, María delAutoridad UVA Orcid
    Año del Documento
    2016
    Editorial
    Springer
    Descripción
    Producción Científica
    Documento Fuente
    Food and Bioprocess Technology, Springer, 2016, Vol. 9, p. 1049–1059
    Résumé
    Abstract In this work, we present a high-resolution oxygen imaging approach to study the two-dimensional oxygen dis- tribution inside an oak stave in contact with wine and that applies the series resistance model to explain the dynamic evolution of oak wood oxygen transfer rate (OTR). Oxygen flux throughout the oak stave has been studied by considering the wood as a permeable membrane with moisture content (MC) in a decreasing gradient from the wine-contacting side of the oak stave to the side in contact with atmospheric air in cellar conditions. The presence of different levels of liquid across the thickness of the wet stave modifies the oxygen diffusion flux, as the diffusion coefficient of oxygen in water is four orders of magnitude lower than in air. The stave resem- bles a multilayered membrane, where wood with an MC over the fiber saturation point represents a distinct layer. To that end, three simultaneous measurements were made, namely the MC profile of the wood within the thickness of the stave at different liquid-wood contact times, the OTR of the stave at those times, and finally the oxygen concentration profile with- in the thickness of the stave using planar optical sensors, a color camera, and ratiometric image analysis. The results show heat flux and oxygen flux that is analogous to that in a multilayer.
    Materias (normalizadas)
    Vinos y vinificación -- Almacenamiento
    ISSN
    1935-5130
    Revisión por pares
    SI
    DOI
    10.1007/s11947-016-1695-0
    Patrocinador
    Junta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. VA124U14)
    Version del Editor
    http://rd.springer.com
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/21528
    Derechos
    openAccess
    Aparece en las colecciones
    • DEP60 - Artículos de revista [112]
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    FABT2016.pdf
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    Attribution-NonCommercial-NoDerivatives 4.0 InternationalExcepté là où spécifié autrement, la license de ce document est décrite en tant que Attribution-NonCommercial-NoDerivatives 4.0 International

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