The colour values of Milk95 only decreased slightly during the storage period, while the colour values for Milk72 decreased
gradually, becoming less white (decreased L-value), more greenish (higher negative a-value), and less yellow (lower b-value). As can be seen in Fig. 2,Milk95 showed higher initial a and b colour values,
which can be attributed to the higher extent of Maillard reaction due to themore severe heat treatment (Kneifel, Ulberth, & Schaffer,