Artículo
Color-copigmentation Study by Tristimulus Colorimetry (CIELAB) in Red Wines Obtained from Tempranillo and Graciano Varieties
Autor/es | García Marino, Matilde
Escudero Gilete, María Luisa Heredia Mira, Francisco José Escribano Bailón, María Teresa Rivas Gonzalo, Julián Carlos |
Departamento | Universidad de Sevilla. Departamento de Nutrición y Bromatología, Toxicología y Medicina Legal |
Fecha de publicación | 2013 |
Fecha de depósito | 2024-05-07 |
Publicado en |
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Resumen | A study of the changes of copigmentation phenomenon in wines elaborated from different varieties has been undertaken. Colorimetric measurement of Tempranillo (T) and Graciano (G) monovarietal wines, and two 80:20 blend ... A study of the changes of copigmentation phenomenon in wines elaborated from different varieties has been undertaken. Colorimetric measurement of Tempranillo (T) and Graciano (G) monovarietal wines, and two 80:20 blend wines: M, (grape blending T and G, co-maceration) and W (wine blending T and G, co-vinification) was performed by spectrophotometry. Significant differences (p<0.05) were found among the color of the wines. The Graciano cv. afforded somewhat darker and more colorful wines than the other wines. The color difference values, δE*ab suggested that co-vinification (W) led to wines being more similar to T than the co-maceration (M). The δE*ab[w-c] between untreated wines - whole wines, w - and the wines diluted to eliminate copigmentation - corrected wines, c - was 14.2 CIELAB units in the initial stages of winemaking and 6.7 in the final stages. M had a greater proportion of color due to copigmentation than the monovarietal wines. Evaluation of this parameter confirms the importance of copigmentation process into wine color during the early stages of the vinification. Also, through the full spectrum, quantitative data obtained allow a visual interpretation of the changes involved. In addition, with the aging in bottle, M wines had more stable color and more different color than W wines. |
Agencias financiadoras | Comisión Interministerial de Ciencia y Tecnología (CICYT). España |
Identificador del proyecto | AGL2005-07245-C03 |
Cita | García Marino, M., Escudero Gilete, M.L., Heredia Mira, F.J., Escribano Bailón, M.T. y Rivas Gonzalo, J.C. (2013). Color-copigmentation Study by Tristimulus Colorimetry (CIELAB) in Red Wines Obtained from Tempranillo and Graciano Varieties. Food Research International, 51 (1), 123-131. https://doi.org/10.1016/j.foodres.2012.11.035. |
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