The CIELab color space was studied following the procedure
of Cassens et al. (1995). The following color coordinates were determined:
lightness (L*), redness (a*, ±red-green), and yellowness
(b*, ±yellow-blue). From these coordinates, hue (H*) and chroma
(C*) were calculated as follows:
Hue ¼ tan−1b =a Chroma ¼ a2 þ b2
1=2
:
Nine replicate measurements were taken for each sample, following
the guidelines for color measurements from American Meat Science
Association (Hunt et al., 1991).