
handle: 2072/306408
The aim of the present work was to study the changes caused by ultraviolet shortwave (UV-C) treatments on the main quality parameters of three types of honey (Rosemary, Lavender and Oak). It was observed that UV-C treatments caused significant reductions (p <0.05) in two of the parameters contemplated in the legislation: diastase activity and hydroxymethylfurfural concentration (HMF). Changes in diastase activity may affect negatively, by reducing their values below those established to consider honey as suitable for consumption (≥8), according to the current legislation. The reduction in the concentration of HMF, however, can be considered as positive, although it is still necessary to establish the type of compounds formed because of their degradation. There were also significant changes in the color of the honeys, although these have little importance since this parameter is not usually considered in the standards of quality currently in force. El presente trabajo tiene como finalidad estudiar los cambios causados por tratamientos con luz ultravioleta de onda corta (UV-C) sobre los principales parámetros de calidad de tres tipos de miel (Romero, Lavanda y Roble). Se observó que el tratamiento UV-C provocaba reducciones significativas (p<0.05) en dos de los parámetros contemplados en la legislación: actividad diastasa y concentración de Hidroximetilfurfural (HMF). Los cambios en la actividad diastasa pueden afectar negativamente, al reducir sus valores por debajo de los establecidos para considerar la miel como apta para el consumo (≥8), según la legislación vigente. La reducción en la concentración de HMF, sin embargo, puede considerarse como positiva, aunque falta establecer el tipo de compuestos formados a causa de su degradación. También se observaron cambios significativos en el color de las mieles, aunque estos tienen escasa trascendencia ya que este parámetro no suele considerarse en las normas de calidad actualmente en vigor.
663/664 - Aliments i nutrició. Enologia. Olis. Greixos, Aliments
663/664 - Aliments i nutrició. Enologia. Olis. Greixos, Aliments
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