Silvia Pérez Magariño, María Luisa González San José
Relationships among Glories, CIELab and Gonzáles parameters of commercial rosé wines were established. Simple and multiple regression models were assessed. The results showed that L*, C* and brightness parameters can be correctly estimated from colour intensity of Glories, and h* from tonality. Multiple linear regression models were necessary to better fitted a*, b* and dominant wavelength, which used three or four Glories parameters. The proposed models can be considered stable and valid for the prediction of these parameters, with small estimation errors and satisfactory validation results. Besides, this study could be useful to predict the more complex parameters (CIELab and Gonzáles parameters) using the Glories ones as independent variables, which can be helpful to wineries.
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