Table 6.

Physico-chemical parameters of the O/W microemulsions determined at 24 ± 0.5 °C (n = 3).

Code	pH	Conductivity (μS/cm)	Refractive Index	Zaverage (nm)	PDI	D10% (nm)	D50% (nm)	D90% (nm)	Span	Zeta (mV)
ME1	5.29 ± 0.01	101.90 ± 0.66	1.3823 ± 0.0002	152.89 ± 2.10	0.230 ± 0.001	118.11	205.71	375.23	1.24	+10.76 ± 1.15
ME2	5.60 ± 0.01	88.70 ± 0.10	1.4047 ± 0.0001	128.90 ± 2.15	0.303 ± 0.002	98.17	187.54	375.23	1.47	+10.68 ± 1.19
ME3	5.53 ± 0.07	55.70 ± 0.30	1.4012 ± 0.0001	188.33 ± 5.03	0.296 ± 0.011	142.11	284.33	543.17	1.41	+14.00 ± 1.28
ME4	5.74 ± 0.02	47.60 ± 0.10	1.4238 ± 0.0001	119.60 ± 1.37	0.332 ± 0.002	93.73	187.54	358.28	1.41	+10.68 ± 2.19
ME5	5.15 ± 0.02	21.67 ± 0.06	1.3959 ± 0.0001	161.34 ± 4.06	0.165 ± 0.003	123.7	205.71	342.09	1.06	+12.34 ± 1.42
ME6	5.48 ± 0.01	18.07 ± 0.06	1.4154 ± 0.0001	202.29 ± 5.02	0.292 ± 0.002	155.87	297.78	568.88	1.38	+9.62 ± 3.23
ME7	5.27 ± 0.01	7.96 ± 0.01	1.4148 ± 0.0001	225.13 ± 5.20	0.280 ± 0.005	170.9	326.63	623.99	1.38	+13.30 ± 1.07
ME8	5.80 ± 0.01	8.80 ± 0.25	1.4318 ± 0.0001	250.20 ± 6.50	0.301 ± 0.007	196.41	375.23	716.84	1.38	+12.62 ± 1.12
ME9	5.57 ± 0.01	74.43 ± 0.03	1.3895 ± 0.0001	133.57 ± 3.08	0.214 ± 0.012	102.81	179.07	311.87	1.16	+9.10 ± 1.94
ME10	5.48 ± 0.00	18.89 ± 0.02	1.4058 ± 0.0001	144.36 ± 1.71	0.230 ± 0.005	112.77	196.41	358.28	1.24	+12.85 ± 2.44