Colour
As it is shown in Table 2, and as it was expected, control
snack exhibited the lowest values of all parameters in comparison with the other samples. This is due to the fact that
the use of egg yolk derivatives as ingredients in snack
development supplies pigments (mainly carotenoids) to the
final products.
Plasma snack showed the higher value of a* (redness) and
yolk snack showed the higher value of b* (yellowness)
parameters, respectively, whereas granule snack presented
the higher L* (whiteness) value. These higher values of redness
and yellowness in yolk and plasma snacks are determined by
the egg yolk liposoluble pigments (granule total lipid content is
much lower than in case of yolk and plasma).