Table 1.

Experiments carried out according to the experimental design. The composition variables were carvacrol (%) in the oil mixture and (LA-KL) (%) in the surfactant mixture. The response variables were the nanoemulsions diameter (D) and transmittance variation at 7 days (ΔT_rel). The nanoemulsion polydispersity index (PDI) is also shown. The final oil mixture content (5% w/w), surfactant content (10% w/w), and water content (85% w/w) were fixed.

Experiment	Carvacrol (%)	LA-KL (%)	D (nm)	ΔTrel (%) (7 Days)	PDI
1	25	25	74	35	0.64
2	25	35	57	11	0.42
3	25	45	32	30	0.31
4	35	25	21	9	0.26
5	35	35	17	4	0.15
6	35	35	16	6	0.17
7	35	35	18	4	0.16
8	35	45	13	39	0.40
9	45	25	32	15	0.39
10	45	35	21	20	0.38
11	45	45	209	47	0.72