Table 1.

The experimental design and results of RSM.

Run	X1 (Ethanol Concentration, %)	X2 (Extraction Time, min)	X3 (Temperature, °C)	Y (TEAC Value, μmol Trolox/g DW)
				Actual Value	Predicted Value
1	40	55.23	60	80.50	82.38
2	40	30	60	92.64	89.16
3	30	45	70	88.26	85.23
4	30	15	50	46.08	46.38
5	30	15	70	76.50	71.37
6	40	30	76.82	80.73	86.10
7	40	30	60	94.25	89.16
8	23.18	40	60	65.21	70.08
9	30	45	50	67.75	65.55
10	40	30	60	93.10	89.16
11	50	45	70	89.64	87.01
12	40	30	60	90.79	89.16
13	40	4.77	60	54.38	55.78
14	50	45	50	65.44	68.25
15	40	30	60	92.41	89.16
16	50	15	70	74.66	74.54
17	40	30	43.18	51.39	49.31
18	40	30	60	72.36	89.16
19	56.82	30	60	76.60	75.02
20	50	15	50	49.77	50.48