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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/4581

    Título
    Enzymatic inactivation of apple juice using HPCD (High Pressure Carbon Dioxide) technology and its effect on the quality parameters of the juice
    Autor
    Illera Gigante, Alba EsterAutoridad UBU Orcid
    Sanz Díez, Mª TeresaAutoridad UBU Orcid
    Beltrán Calvo, SagrarioAutoridad UBU Orcid
    García Solaesa, ÁngelaAutoridad UBU Orcid
    Melgosa Gómez, RodrigoAutoridad UBU Orcid
    Fecha de publicación
    2017
    Descripción
    Ponencia presentada en: 16th European Meeting on Supercritical Fluids, 25 a 28 de abril de 2017, Lisboa
    Abstract
    The quality of cloudy apple juice seems to be better than the clarified juice due to the loss of phenolic compounds during processing. Enzymatic browning and cloud stability are the main problems in processing and storage of the juice. In this work, HPCD is proposed as an alternative to the traditional heat treatments that can degrade the quality of the juice. Polyphenol oxidase (PPO) and pectin methylesterase (PME) inactivation by HPCD were determined for both enzymes. The effect of stirring speed on PPO inactivation was studied; obtaining that at higher speed inactivation was also higher. Other quality parameters in the juice were also determined after HPCD treatment, such as particle size distribution, colour, turbidity and total phenolic compounds.
    Materia
    Ingeniería química
    Chemical engineering
    URI
    http://hdl.handle.net/10259/4581
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