NO inhibitory activity of curcumin in microemulsion-based C. longa extracts (n = 9, mean ± SEM).

Microemulsion	IC50 of Cur (nM) in the CL extract of HDESs-based MEs	IC50 of HDESs-based MEs (%v/v)
HDES of octanoic acid : menthol (70 : 30, mass ratio)
ME-71	400 ± 90	0.0219 ± 0.0041
ME-72	270 ± 82	> 0.0371
ME-73	400 ± 67	> 0.0371
ME-74	300 ± 23	0.0277 ± 0.0051
HDES of octanoic acid : menthol (40 : 60, mass ratio)
ME-41	360 ± 32	0.0268 ± 0.0036
ME-42	230 ± 30	0.0222 ± 0.0023
ME-43	126 ± 1	0.0326 ± 0.0076
ME-44	216 ± 1	0.0260 ± 0.0031
HDES of octanoic acid : menthol (20 : 80, mass ratio)
ME-21	> 500	> 0.0371
ME-22	137 ± 1	0.0256 ± 0.0028
ME-23	75.2 ± 6.7	0.0136 ± 0.0023
ME-24	157 ± 4	0.00833 ± 0.00120
ME-25	220 ± 48	0.0288 ± 0.0055