Table 2.

The coded and corresponding real values of experimental parameters and their actual responses in central composite design

Standard order	Run	Factor 1	Factor 2	Factor 3	Response 1	Response 2	Response 3	Response 4	Yield
		Microwave power (W)	Irridation Time (min)	Acetone:H2O (%)	TPCa	FRAPa	DPPHb	TACc	mg/100 g dry weight
1	13	300 (−1)	6 (−1)	25 (−1)	1.096	0.122	92.859	0.188	0.21
2	18	500 (1)	6 (−1)	25 (−1)	0.951	0.085	98.697	0.168	0.22
3	14	300 (−1)	10 (1)	25 (−1)	0.984	0.109	96.089	0.178	0.22
4	9	500 (1)	10 (1)	25 (−1)	0.996	0.104	99.543	0.168	0.22
5	15	300 (−1)	6 (−1)	75 (1)	0.328	0.068	70.652	0.063	0.13
6	11	500 (1)	6 (−1)	75 (1)	0.463	0.089	81.448	0.086	0.15
7	19	300 (−1)	10 (1)	75 (1)	0.385	0.051	79.047	0.077	0.13
8	2	500 (1)	10 (1)	75 (1)	0.537	0.105	88.815	0.098	0.16
9	16	200 (−2)	8 (0)	50 (0)	0.674	0.077	99.433	0.120	0.16
10	5	600 (2)	8 (0)	50 (0)	0.809	0.093	99.870	0.131	0.19
11	1	400 (0)	4 (−2)	50 (0)	0.745	0.077	64.407	0.114	0.18
12	4	400 (0)	12 (2)	50 (0)	0.778	0.085	73.979	0.136	0.20
13	8	400 (0)	8 (0)	0 (−2)	1.012	0.106	95.012	0.195	0.24
14	20	400 (0)	8 (0)	100 (2)	0.028	0.054	61.306	0.021	0.10
15	3	400 (0)	8 (0)	50 (0)	0.801	0.094	86.855	0.107	0.17
16	17	400 (0)	8 (0)	50 (0)	0.804	0.107	89.916	0.142	0.17
17	7	400 (0)	8 (0)	50 (0)	0.796	0.095	87.384	0.107	0.19
18	12	400 (0)	8 (0)	50 (0)	0.783	0.103	89.688	0.134	0.18
19	10	400 (0)	8 (0)	50 (0)	0.804	0.110	88.970	0.133	0.19
20	6	400 (0)	8 (0)	50 (0)	0.854	0.095	88.298	0.143	0.18

a All data were expressed as mg tannic acid equivalent per gram dry weight algae

b All data were expressed as Radical scavenging activity (%)

c All data were expressed as mg ascorbic acid equivalent per gram dry weight algae