Table 1.

Experimental design by CCD-RSM.

Experiment number	Oil (%)	Egg lecithin (%)	F68 (%)	Droplet size (nm)
1	17.50	1.20	0.50	207.3
2	17.50	1.20	0.30	213.1
3	24.93	0.84	0.42	258.2
4	17.50	0.60	0.30	252.8
5	17.50	1.20	0.30	213.4
6	17.50	1.20	0.30	211.5
7	10.07	1.56	0.18	178.5
8	24.93	1.56	0.42	223.3
9	10.07	0.84	0.42	202.1
10	17.50	1.20	0.10	229.6
11	10.07	1.56	0.42	174.7
12	30.00	1.20	0.30	258.9
13	5.00	1.20	0.30	162.9
14	24.93	0.84	0.18	278.7
15	17.50	1.20	0.30	211.7
16	17.50	1.20	0.30	210.5
17	24.93	1.56	0.18	235.5
18	17.50	1.80	0.30	196.6
19	17.50	1.20	0.30	213.4
20	10.07	0.84	0.18	211.0