Similar to the present study, Sánchez-Alonso, Solas, et al. (2007)
found a slight decrease inwhitenesswhen giant squid surimiwas fortified
with more than 4 g/100 g of wheat fiber. The whiteness decrease
also correlated with lower L⁄. However, as opposed to the
present study, Sánchez-Alonso, Solas, et al. (2007) showed increased
b⁄ with added fiber. In a different study, Sánchez-Alonso,Haji-Maleki,
et al. (2007) showed that raw and cooked restructured hake and
horse mackerel had increased whiteness up to 6 g/100 g of added
wheat fiber. This was similar to the present study, except whiteness
increased up to 4 g/100 g of added fiber in the present study. The differences
in the tristimulus colour values can probably be explained
by the dark vs. light type of fish muscle and the type of fiber added.
Most likely the endogenous pigments naturally occurring in the species
with prevalent dark muscle had the most impact. In fish with
dark muscle, the added fiber seems to have a whitening effect by
masking/trapping the dark pigmentmolecules,whereas fish that lack
pigment molecules do not benefit from the whitening effect.