Release Kinetic Studies of Stevia rebaudiana Extract Capsules from Sodium Alginate and Inulin by Ionotropic Gelation

Table 5

Constant (K), correlation coefficient (), and release exponent () of different kinetic models for steviol glycosides release.

Treatment	Zero‐order		First‐order		Higuchi equation		Korsmeyer–Peppas equation		Ritger–Peppas equation		Release exponent
	1	35.1638	0.9203	0.4096	0.9241	60.1849	0.9418	49.8865	0.7855	24.5906	0.9580	0.5278
2	28.0270	0.9998	0.1563	0.9242	46.6406	0.9223	65.2063	0.9870	45.5452	0.9006	0.4444
3	26.6233	0.9327	0.1160	0.9206	45.8626	0.9920	71.5522	0.9914	52.5268	0.9311	0.3601
4	29.4402	0.9963	0.1523	0.8843	49.6953	0.9457	58.5737	0.8605	42.6789	0.9497	0.4266
5	27.2709	0.9906	0.8853	0.9908	41.9192	0.9638	57.6390	0.9696	54.7285	0.9813	0.4148
6	19.0412	0.9389	0.5999	0.8701	41.0342	0.9242	49.1339	0.8877	45.7341	0.9614	0.4869
7	14.0117	0.9590	0.1508	0.9727	52.8596	0.8553	20.7832	0.9210	−7.1407	0.9307	0.7312
8	37.9265	0.9951	1.1922	0.9888	58.0884	1.0000	25.1194	0.9912	−67.9237	0.8441	1.6428
CT	29.8113	0.9242	0.5946	0.9539	64.6968	0.9588	37.0361	0.9356	−8.5843	0.9515	1.1719

CT = central treatment.