A proposal for a method to measure the colour of red wines by measuring transmittance at three wavelengths

  1. M. C. Juárez 1
  2. José Federico Echávarri Granado 1
  3. A. Ignacio Negueruela Suberbiola 2
  1. 1 Laboratorio de Color de la Rioja, Luis de Ulloa 20, 26004 Logroño, Spain
  2. 2 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

Revista:
Food science and technology international = Ciencia y tecnología de alimentos internacional

ISSN: 1082-0132,  1532-1738

Año de publicación: 1997

Volumen: 3

Número: 3

Páginas: 189-193

Tipo: Artículo

DOI: 10.1177/108201329700300306 DIALNET GOOGLE SCHOLAR

Otras publicaciones en: Food science and technology international = Ciencia y tecnología de alimentos internacional

Resumen

Characteristic vectors analysis has been used to reconstitute the transmittance spectrum of red wines measured in 0.2 cm path-length cells. We have verified that an accurate reconstitution of the spectrum is obtained with the mean vector and the first three characteristic vectors. Applying the outputs obtained to the colour calculation, tristimulus values are obtained as a function of transmittance measured at 420, 520 and 620 nm. The errors involved, measured in colour differ ences, are less than 3 CIELAB units in 97% of the cases.

Fuente de los datos: Dialnet