Table 2.

Solubility of the main phenolic compounds of the olive extract in different vehicles. Data are expressed as mean ± sd from three independent measurements.

	Verbascoside	Oleuropein	Ligstroside	Total Phenolic Content
	(mg/mL)	(mg/mL)	(mg/mL)	(mg/mL)
Water	0.243 ± 0.007	3.081 ± 0.007	0.314 ± 0.003	3.816 ± 0.071
Capryol 90	0.060 ± 0.009	1.079 ± 0.074	0.115 ± 0.001	1.292 ± 0.107
Captex 300	nd	0.058 ± 0.012	0.014 ± 0.001	0.074 ± 0.013
Captex 355	nd	0.038 ± 0.005	0.012 ± 0.001	0.052 ± 0.006
Labrafac	nd	0.032 ± 0.017	0.007 ± 0.003	0.039 ± 0.020
Labrafilm 1944	0.010 ± 0.001	0.411 ± 0.007	0.050 ± 0.003	0.483 ± 0.002
Labrafilm 2125	0.010 ± 0.001	0.456 ± 0.007	0.070 ± 0.022	0.545 ± 0.033
Labrasol ALF	0.411 ± 0.007	5.331 ± 0.010	0.526 ± 0.011	6.582 ± 0.057
Lauroglycol 90	0.018 ± 0.004	0.611 ± 0.001	0.069 ± 0.002	0.729 ± 0.009
Transcutol	0.702 ± 0.007	9.036 ± 0.005	0.896 ± 0.025	11.081 ± 0.046
Cremophor EL	0.326 ± 0.040	5.269 ± 0.312	0.510 ± 0.047	6.320 ± 0.419

nd: not defined.