A Minolta CM-2002 (Osaka, Japan) spectrophotometer was used to
measure colour at the surface of a 2 cm-thick LTL chop at 72 h p.m. exposed
to air for 2 h. The illuminant used was D65 and the standard observer
position was 10°. The parameters registered were CIE L*
(lightness), a* (redness), and b* (yellowness). Each value was the
mean of ten observations on the same chop, avoiding areas with excess
fat.