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. 2017 Feb 24;11:521–531. doi: 10.2147/DDDT.S128470

Table 1.

Experimental design matrix

Exp X1 X2 (g) X3 (rpm) X4 (min) X5 (%) X6
N1 E1 19 500 5 1.50 Yes
N2 E1 28.5 1,000 10 2 Yes
N3 E1 38 1,500 15 3 Yes
N4 E2 19 500 10 2 Yes
N5 E2 28.5 1,000 15 2.50 Yes
N6 E2 38 1,500 5 1 Yes
N7 E3 19 1,000 5 3 Yes
N8 E3 28.5 1,500 10 2 Yes
N9 E3 38 500 15 2.5 Yes
N10 E1 19 1,500 15 2 No
N11 E1 28.5 500 5 2.5 No
N12 E1 38 1,000 10 1.5 No
N13 E2 19 1,000 5 1 No
N14 E2 28.5 1,500 5 1.5 No
N15 E2 38 500 10 2.5 No
N16 E3 19 1,500 10 3 No
N17 E3 28.5 500 15 2 No
N18 E3 38 1,000 10 2.5 No
N19 E1 28.5 1,000 10 2 Yes
N20 E1 28.5 1,000 10 2 Yes
N21 E1 28.5 1,000 10 2 Yes

Abbreviations: Exp, experiment; E1, surfactant Abil EM 180; E2, surfactant glyceryl stearate; E3, surfactant Olliva; X1, emulsifier type; X2, amount of oily phase; X3, stirring rate; X4, time of stirring; X5, ratio of the surfactant; X6, the use of a co-surfactant (yes/no).