Table 3.

Central Composite Design Experiments and Experimental Results

Runs	Factor 1 A: DGG (% w / v)	Factor 2 B: HPMC (% w / v)	Factor 3 C: VG (% w / v)	Response 1 Solution Viscosity mPa	Response 2 Gel Viscosity mPa
1	0.3345	0.1845	0.8170	27.40 ± 0.39	904.37 ± 10.49
2	0.5655	0.1845	0.8170	461.20 ± 3.25	1288.41 ± 9.41
3	0.3345	0.4155	0.8170	86.77 ± 0.82	1000.98 ± 11.49
4	0.5655	0.4155	0.8170	994.07 ± 7.12	1763.26 ± 21.44
5	0.3345	0.1845	1.6830	22.83 ± 0.11	902.25 ± 17.29
6	0.5655	0.1845	1.6830	362.30 ± 2.47	1795.40 ± 30.48
7	0.3345	0.4155	1.6830	126.37 ± 1.07	1453.09 ± 16.39
8	0.5655	0.4155	1.6830	822.00 ± 6.33	1955.85 ± 22.20
9	0.2500	0.3000	1.2500	73.07 ± 0.09	846.51 ± 13.84
10	0.6500	0.3000	1.2500	914.87 ± 5.59	1955.82 ± 19.22
11	0.4500	0.1000	1.2500	86.77 ± 0.11	1201.58 ± 23.04
12	0.4500	0.5000	1.2500	535.83 ± 2.37	1722.91 ± 21.89
13	0.4500	0.3000	0.5000	200.90 ± 0.92	1412.05 ± 13.90
14	0.4500	0.3000	2.0000	202.43 ± 1.20	1904.54 ± 26.77
15	0.4500	0.3000	1.2500	207.50 ± 0.42	1951.40 ± 20.16
16	0.4500	0.3000	1.2500	205.21 ± 1.38	1955.24 ± 18.53
17	0.4500	0.3000	1.2500	205.23 ± 1.22	1957.49 ± 19.36
18	0.4500	0.3000	1.2500	209.01 ± 2.03	1949.27 ± 20.66
19	0.4500	0.3000	1.2500	207.28 ± 0.91	1955.04 ± 18.30
20	0.4500	0.3000	1.2500	207.31 ± 0.62	1958.38 ± 25.01

Abbreviations: DGG, deacetylated gellan gum; HPMC, hydroxypropyl methylcellulose; VG, glycerin.