Table 5.

Designed experiments and measured responses of response surface analysis.

Run	Ultrasonic Temperature	Ultrasonic Time	Ethanol Concentration	Liquid-Solid Ratio	Response 1-YTFC	Response 2-YDPPH	Response 3-YFRAP
	(℃)	(min)	(%)	(mL/g)	(mg RE/g)	(%)	(μM Fe2+/g)
1	60	6	70	30	6.95	93.09	47.97
2	80	8	80	30	7.27	92.88	45.92
3	70	6	80	30	7.52	93.29	48.20
4	60	6	80	35	7.73	93.55	45.93
5	80	6	70	30	7.00	91.49	49.38
6	60	8	80	30	7.74	94.92	45.66
7	80	6	80	35	7.96	94.00	48.43
8	60	6	80	25	7.14	95.25	41.82
9	70	4	70	30	7.36	92.15	50.65
10	80	6	80	25	7.04	93.22	44.15
11	70	6	80	30	7.43	93.36	48.06
12	60	4	80	30	7.34	93.36	40.36
13	70	4	80	25	6.79	93.47	39.37
14	80	4	80	30	7.61	94.79	46.51
15	70	8	80	25	7.62	95.70	42.96
16	60	6	90	30	6.68	94.92	34.54
17	70	6	70	35	7.47	93.16	49.11
18	70	6	80	30	7.68	93.80	51.47
19	70	6	90	35	6.93	94.53	40.19
20	70	4	80	35	7.93	93.81	44.95
21	70	6	80	30	7.69	94.06	50.24
22	70	6	70	25	7.10	91.73	48.50
23	70	8	70	30	7.28	93.14	52.82
24	70	8	90	30	6.84	95.38	43.45
25	70	6	80	30	7.41	93.60	50.17
26	80	6	90	30	6.71	95.25	43.16
27	70	6	90	25	6.45	97.26	34.32
28	70	4	90	30	6.52	94.46	39.01
29	70	8	80	35	7.44	93.87	49.70