Analysis Experimental Values Predicted Values DR% Water activity 0.14 0.16 9.13 Humidity (%) 5.51 5.58 1.25 RCF (%) 60.00 75.26 20.27 RD = Relative Deviation, RFC = Retention of Phenolic Compounds

Table 6: Experimental and predicted values for the analyses performed on powder produced under selected conditions based on the response surface graphs.