Enhancing the Solubility of Curcumin Metal Complexes and Investigating Some of Their Biological Activities

Table 2

Solubility of curcumin metal complex in water solvent at different Tween concentrations.

Conc. of Tween 80 (%w/v)	Solubility (mg/ml)
	Cur-Fe(III)	Cur-Ca(II)	Cur-Zn(II)
0.1	(0.0660 ± 0.004)^k	(0.2180 ± 0.004)^d	(0.0596 ± 0.002)^k
0.5	(0.0777 ± 0.004)^j	(0.2851 ± 0.007)^c	(0.0876 ± 0.003)^i
1	(0.0862 ± 0.002)^i	(0.2991 ± 0.003)^b	(0.1209 ± 0.003)^g
1.5	(0.0898 ± 0.001)^i	(0.3027 ± 0.002)^b	(0.1473 ± 0.006)^f
2	(0.1058 ± 0.002)^h	(0.3278 ± 0.007)^a	(0.1989 ± 0.004)^e
2.5	(0.1064 ± 0.008)^h	(0.3293 ± 0.008)^a	(0.2004 ± 0.003)^e

In the same column, different values indicate differences according to the columns ().