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June 26, 2015 (v1)PublicationUploaded on: December 4, 2022
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May 3, 2019 (v1)Publication
The trichromatic theory was applied to wines at the end of the 1930s. Trichromatic co‐ordinates, dominant wavelength, purity and luminance were determined. The Munsell system and the Lovibond method, which had industrial applicability, were compared with the simplified methods proposed by the L'office Internationale de la Vigne et du Vin (OIV)....
Uploaded on: March 27, 2023 -
May 3, 2019 (v1)Publication
In the 1930s trade transactions required that the color of wine be more rigidly specified. The wine‐colorimeter was useful with this purpose. Intensity of color was the first property to be considered. From the beginning of this century visual comparisons of wines with standard mixtures of dyes or colored substances (potassium permanganate and...
Uploaded on: December 4, 2022 -
March 5, 2024 (v1)Publication
Plant proteins are biopolymers with interesting technological applications for the food industry due to their ability to interact with phenolic compounds such as anthocyanins. The 3D structure of the 7S globulin from grape seed was elucidated for the first time using a homology model. The constructed 3D model showed that grape seed 7S globulin...
Uploaded on: March 7, 2024 -
April 30, 2019 (v1)Publication
La calidad del vino depende en gran medida del estado en que se encuentren los diferentes componentes de la uva en el momento de la recolección y, en este sentido, las semillas afectan directamente a su astringencia, así como a la estructura y estabilidad del color del vino. En el presente trabajo se han evaluado semillas de uva de diferentes...
Uploaded on: December 4, 2022 -
December 14, 2022 (v1)Publication
Hyperspectral images of intact grapes during ripening were recorded using a near infrared hyperspectral imaging system (900-1700 nm). Spectral data have been correlated with grape skin total phenolic concentration, sugar concentration, titratable acidity and pH by modified partial least squares regression (MPLS) using a number of spectral...
Uploaded on: March 24, 2023 -
June 6, 2016 (v1)Publication
Three independent methodologies were investigated to achieve the differentiation of red grapes from different grape varieties (Garnacha, Graciano, Mazuelo and Tempranillo) collected from five vineyards located in the D.O.Ca. Rioja. Anthocyanin chromatographic analysis, color image analysis and near infrared hyperspectral imaging were carried...
Uploaded on: March 27, 2023 -
January 23, 2024 (v1)Publication
The potential of near-infrared hyperspectral imaging to determine anthocyanins in intact grape has been evaluated. The hyperspectral images of intact grapes during ripening were recorded using a near-infrared hyperspectral imaging covering the spectral range between 900 and 1700 nm. Reference values of anthocyanins were obtained by HPLC-DAD. A...
Uploaded on: January 26, 2024