Their topics are basic terms, types of chromic materials, the production of chromic materials, Commission Internationale de L'Eclairage
(CIE) colorimetry, instrumentation, spectrophotometry of color change, and testing chromic materials.
The objective meat color (Commission Internationale de l'Eclairage
[CIE]; lightness [L*], redness [a*], yellowness [b*]) was measured after a 30 min blooming period at 4[degrees]C (CR-300, Minolta Camera Co, Osaka, Japan).
The Commission Internationale de l'Eclairage
(CIE) introduced the general color rendering index (CRI, Ra ) in 1965.