synthetic casings produced
significantly (p < 0.05) less lightness (L*: 44.01 ± 1.29), redness (a*:
33.09 ± 0.96), yellowness (b*: 32.50 ± 0.81) and chroma (CH:
46.38 ± 1.21) and a higher browning index (BI: 170.46 ± 2.53) in
unsmoked chorizo than natural casings (L*: 47.14 ± 0.90; a*:
33.92 ± 0.57; b*: 33.16 ± 0.45; CH: 47.44 ± 0.22; BI: 159.90 ± 4.69).
In contrast, no significant differences (p > 0.05) were found in the
hue angle of either type of chorizo before smoking.