d ‘‘a*’’ parameters are well correlated to browning reaction . Enzymatic
and non-enzymatic reactions are the most important reason of
browning development in fruits and vegetables during dehydration. This reduction of lightness values could also be attributed
to the shrinkage of plant tissue which leads to increase in samples opacity. The changes of redness and yellowness are clear
and seem to be relevant to alteration of fruit pigments and solids
uptake ( Falade and Igbeka, 2007 )