For the bar filling, there was colour difference between the inulin-
enhanced bar and the control bar when APE was added into the
filling (DE* = 5.00), and between the apple DF-enhanced bar and
the control bar when no APE was applied (DE* = 4.58). There was
no difference in filling colour between the snack bar enhanced with
inulin fibre only and the control bar with no added APE
(DE* = 0.90).