Table 1.

The actual and predicted responses for the extraction yield and total phenol content, based on the 3-factor and 3-level Box–Behnken design.

Experimental Design Parameters			Aboveground Part				Roots
Temperature (°C)	Extraction Time (min)	Water/Plant Ratio	Extraction Yield (%) Predicted	Extraction Yield (%) Actual	TPC mg GAE/g	TPC mg GAE/g Actual	Extraction Yield (%) Predicted	Extraction Yield (%) Actual	TPC mg GAE/g Predicted	TPC mg GAE/g Actual
200.00	105.00	0.4	81.28	80.13	32.42	40.06	63.00	64.21	37.68	44.01
100.00	105.00	0.4	42.94	41.88	24.15	26.18	33.16	33.25	30.05	28.74
150.00	180.00	0.4	71.88	71.21	29.28	28.94	56.2	54.69	45.91	43.84
100.00	105.00	0.1	62.66	63.81	112.37	104.73	30.72	29.51	139.83	133.50
100.00	180.00	0.25	51.93	53.65	31.33	29.64	41.82	43.24	57.50	60.87
200.00	30.00	0.25	66.67	64.94	58.47	60.16	60.65	59.23	74.28	70.91
150.00	30.00	0.4	52.43	55.30	55.90	46.57	52.51	52.72	44.77	41.82
100.00	30.00	0.25	53.69	51.87	14.49	21.78	35.34	35.04	48.16	52.42
200.00	105.00	0.1	70.74	71.79	179.99	177.96	56.67	56.58	172.83	174.14
150.00	105.00	0.25	69.16	69.61	57.84	56.07	55.00	50.00	72.33	80.24
150.00	30.00	0.1	68.00	68.67	136.38	136.72	42.75	44.26	164.84	166.91
150.00	105.00	0.25	69.16	69.86	57.84	61.27	55.00	61.08	72.33	67.49
150.00	105.00	0.25	69.16	68.02	57.84	56.18	55.00	53.91	72.33	69.27
200.00	180.00	0.25	85.37	87.19	63.22	55.93	72.3	72.6	72.01	67.75
150.00	180.00	0.1	65.49	62.61	184.58	193.91	57.19	56.98	170.77	173.13