The cookies containing germinated amaranth flour displayed significant
lower value for lightness (L - value) but significantly higher
value for redness (a - value) and yellowness (b - value) followed by
raw amaranth flour cookies and control wheat flour cookies. According
to Chevallier, Colonna, and Lourdin (2000) protein content
was negatively correlated with lightness of a cookie, indicating that
the Maillard reaction played the major role in colour formation