Table 5.

Experimental and predicted values of the responses variables.

	Experimental	Estimated	% Error
TAC	160.41 ± 3.06	146.69	9.35
C3GC	27.48 ± 0.86	23.60	16.48
P3GC	21.27 ± 0.36	24.26	12.32
P3-5DGC	59.95 ± 0.77	52.04	15.19
M3GC	6.74 ± 0.89	5.90	14.23
D3GR	60.03 ± 1.36	54.36	10.43
TPC	43.27 ± 0.52	48.17	10.67
Hue	46.84 ± 1.14	53.32	12.83

Values presented are the average of duplicated of the experiment ± standard deviation. TAC = total anthocyanin content (mg cyanidin 3-glucoside/kg), C₃GC = cyanidin-3-glucoside content (mg cyanidin 3-glucoside/kg), P₃G = pelargonidin 3-glucoside content (mg pelargonidin 3-glucoside/kg), P_3-5DGC = pelargonidin 3-5 diglucoside content (mg pelargonidin 3-5-diglucoside/kg), M₃GC = malvidin 3-glucoside content (mg malvidin 3-glucoside/kg), D₃GR = retention percentage of Delphinidin 3-glucoside and TPC = total phenolic content (mg GAE/100 g).