Table 2.

Physical characterization of SLN and corresponding gels.

Lipid	Formulation Code	Size∗# (nm)	PDI*	ζ potential* (mV)	Entrapment efficiency* (%)	Viscosity† (Cps)
GMS	GMN-1	101.2 ± 3.2	0.35 ± 0.043	−29 ± 2.36	47.24 ± 3.94	18560 ± 23.4
	GMN-2	111.5 ± 3.9	0.34 ± 0.056	−27 ± 3.15	56.62 ± 2.41	18753 ± 21.2
	GMN-3	124.2 ± 4.1	0.31 ± 0.028	−23 ± 3.54	69.96 ± 3.61	18350 ± 20.7
SA	SAN-1	116.3 ± 4.3	0.48 ± 0.064	−45 ± 4.32	39.12 ± 4.72	16234 ± 19.3
	SAN-2	128.9 ± 5.1	0.45 ± 0.055	−40 ± 3.97	48.37 ± 3.21	16587 ± 24.8
	SAN-3	137.6 ± 6.23	0.40 ± 0.048	−36 ± 4.15	59.32 ± 3.59	16628 ± 21.5
Guggul Lipid	GLN-1	98.12 ± 1.2	0.22 ± 0.028	−11 ± 1.32	65.12 ± 1.32	18123 ± 12.1
	GLN-2	109.5 ± 1.5	0.21 ± 0.039	−13 ± 1.23	76.43 ± 1.71	18312 ± 14.5
	GLN-3	117 ± 1.7	0.2 ± 0.011	−15 ± 1.43	89.54 ± 1.43	19401 ± 11.8

*Determinations performed on SLN.

^†Viscosity determined on corresponding carbopol gels.

^#Size after extrusion.

All data expressed as mean ± S.D.; n = 3. P ≤ 0.05.