The trend for tota colour difference of reconstituted Gac powder products as a result of the spray-drying process was similar to the results for redness in terms of deing significantly affected by the inted drying temperature however, not by the maltodextrin concentration. The reduction of redness, indicated by high hue angle and low a*/b* value,is the possible explanation for an increased total colour difference in reconstituted gac powders due to high inlet temperature. additionnally, it can be clearly seen that