Table 2.

The experimental values and predicted values of responses at the optimum condition

Variables/responses	Optimum conditions
	Actual value	Predicted value
pH	4.00	4.06
Temperature (°C)	40.00	39.80
NaCl (% w/v)	0.50	0.52
Total anthocyanin content (mg cyanidin equivalent/g of FRB)	101.10 ± 1.91	101.04
Antioxidant capacity TEAC (mg trolox equivalent/g of FRB)	70.10 ± 0.65	70.30
β-glucosidase activity (relative activity (%))	98.54 ± 1.33	98.57

The desirability value of optimum condition was 0.904

FRB fermented rice bran