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Table 5 Formulations prepared with the excipients of system D obtained from an augmented lattice simplex experimental design

From: Self-microemulsifying system of an ethanolic extract of Heliopsis longipes root for enhanced solubility and release of affinin

Formulation D	Transcutol®	Tween® 80/PG(1:1)	Labrasol®	Droplet size (nm)
1	0.60	0.10	0.30	69 ± 2.5
2	0.57	0.12	0.31	78 ± 4.4
3^a	0.55	0.10	0.35	82 ± 2.6
4	0.55	0.15	0.30	94 ± 8.0
5	0.54	0.13	0.33	73 ± 4.5
6	0.52	0.12	0.36	76 ± 13.1
7	0.52	0.16	0.32	85 ± 7.8
8	0.50	0.10	0.40	78 ± 4.7
9	0.50	0.15	0.35	97 ± 5.6
10	0.50	0.20	0.30	94 ± 9.0

^aHL-SMDS optimal formultion

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