Table 3. Amount of diclofenac potassium loaded and released (%) in different formulation of NaAlg/AA hydrogels.

Sample codes	Amount of diclofenac potassium Loaded (g/g of dry gel)			Amount of diclofenac potassium released (%) (pH of the solution)
	By swelling	By weight	By extraction	1.2	5.5	7.5
A1	0.362	0.365	0.358	15.61	56.57	79.48
A2	0.319	0.311	0.305	14.15	54.66	75.21
A3	0.289	0.281	0.273	13.40	51.20	73.09
E1	0.294	0.286	0.283	16.35	57.56	82.79
E2	0.227	0.229	0.220	11.88	52.92	75.36
E3	0.201	0.197	0.206	10.26	51.11	73.42