Table 1.

Experimental design (orthogonal array L₁₆) and measured results using C. zedoaria.

Exp. No	Parameters			TPC (mg GAE/g)	TFC (mg QE/g)	AA (%)
	Solvent (%)	Time (min)	S-L (g/mL)
1	50	50	0.02	4.81	8.96	12.85
2	50	60	0.04	3.87	9.27	11.35
3	50	70	0.06	2.02	3.45	9.36
4	50	80	0.08	1.51	2.59	8.86
5	60	50	0.04	3.55	7.82	11.06
6	60	60	0.02	8.25	15.83	11.06
7	60	70	0.08	1.80	4.02	7.97
8	60	80	0.06	2.30	4.60	8.96
9	70	50	0.06	2.81	14.48	10.86
10	70	60	0.08	2.79	15.25	11.45
11	70	70	0.02	7.70	25.27	15.94
12	70	80	0.04	1.95	3.63	8.86
13	80	50	0.08	3.55	14.48	14.14
14	80	60	0.06	5.14	21.75	13.84
15	80	70	0.04	4.42	21.35	13.05
16	80	80	0.02	4.45	12.76	12.65