Table 2.

Solubility, drug loading, and entrapment efficiency of the mixed micelles with different mass ratios of PPD–phospholipid complex and Labrasol^® (Gattefossé, St-Priest, France)

Micelles (ratio of PPD–phospholipid complex and Labrasol)	Solubility (μg/mL)	EE (%)	DL (%)
1:1	89.82 ± 1.13	83.28% ± 1.91%	17.24% ± 2.09%
1:3	192.41 ± 2.58	93.53% ± 2.28%	10.54% ± 1.93%
1:6	257.69 ± 1.94	94.15% ± 1.36%	8.71% ± 1.76%
1:9	336.28 ± 3.62	92.16% ± 1.89%	5.89% ± 1.58%

Note: n = 3.

Abbreviations: EE, entrapment efficiency; DL, drug loading; PPD, 20(S)-protopanaxadiol.