Table 2 Central composite design (CCD) matr ix for total flavonoid content (TFC), total anthyocianin content (TAC), total polyphenol content (TPC), DPPH radical scavenging (DPPH) of blue honeysuckle under ethanol concentration, irradiation time and microwave power

Exp No.	Extraction conditions			Responses
	Ethanol concentration (%)	Irradiation time (min)	Microwave power (W)	TFC (mg GAE/g)	TAC (mg CGE/g)	TPC (mg GAE/g)	DPPH (%)
	1	25	4	210	63.54±0.38	0.33±0.00	13.79±0.39	91.22±0.39
2	25	4	270	62.96±0.67	0.35±0.00	13.96±0.35	91.39±0.55
3	25	10	210	62.51±0.67	0.36±0.02	14.51±0.38	91.50±0.23
4	25	10	270	63.97±1.24	0.38±0.01	14.45±0.43	91.60±0.27
5	75	4	210	63.11±1.02	0.35±0.01	13.81±0.11	91.46±0.50
6	75	4	270	63.26±0.81	0.37±0.00	14.4±0.12	91.77±0.44
7	75	10	210	64.03±0.80	0.36±0.00	14.29±0.13	92.11±0.17
8	75	10	270	64.17±1.17	0.4±0.01	14.35±0.14	92.28±0.06
9	0	7	240	61.75±1.11	0.3±0.01	13.83±0.38	91.46±0.17
10	100	7	240	62.51±1.10	0.36±0.00	14.38±0.12	92.01±0.12
11	50	1	240	63.38±0.67	0.32±0.00	13.78±0.31	91.22±0.39
12	50	13	240	63.52±1.05	0.34±0.00	14.11±0.02	91.46±0.11
13	50	7	180	64.02±1.09	0.33±0.01	13.82±0.19	91.39±0.49
14	50	7	300	64.26±1.26	0.38±0.01	14.28±0.12	91.32±0.22
15	50	7	240	65.97±0.80	0.44±0.00	14.62±0.39	92.32±0.00
16	50	7	240	65.61±1.46	0.47±0.00	14.68±0.02	92.55±0.43
17	50	7	240	65.73±1.53	0.46±0.00	14.68±0.22	92.59±0.12
18	50	7	240	65.76±1.07	0.44±0.01	14.69±0.21	92.41±0.21
19	50	7	240	65.8±1.61	0.44±0.01	14.65±0.17	92.55±0.43
20	50	7	240	65.87±0.91	0.45±0.01	14.65±0.28	92.45±0.17