(a)
(b)
Figure 2: Absorption kinetics of: (a) water and (b) milk, of extruded cereals pigmented with —0%, –⋅–2.5%, - - -5.0%, and ⋯7.5% of encapsulated powder of red cactus pear; different upper case letter indicates significant difference between kinetics in the same medium. Small letter indicates significant difference between water and milk absorption.