Red color intensity, as contributed by oxyhemoglobin
(HbO2) and COHb in oposition to methemoglobin
508 P.R. Fontes et al. / Meat Science 68 (2004) 507–513
(MHb), was estimated by using the difference in percent
reflectance (R Diff.) at 630 and 580 nm (Strange,
Benedict, Gugger, Metzger, & Swift, 1974)