Design, Development, and Optimization of Sterculia Gum-Based Tablet Coated with Chitosan/Eudragit RLPO Mixed Blend Polymers for Possible Colonic Drug Delivery

Table 4

Predicted and observed value of experimental coating formulations.

Coating formulations	Factor 𝑋1	Factor 𝑋2	Observed	Predicted	Residual
FC1	15.00	10.00	37.10	35.99	1.11
FC2	12.93	12.00	26.50	28.88	−2.38
FC3	15.00	14.00	27.50	25.63	1.87
FC4	20.00	9.17	41.20	42.7	−1.5
FC5	20.00	12.00	35.60	35.47	0.13
FC6	20.00	14.83	27.80	28.14	−0.34
FC7	25.00	14.00	38.70	32.81	5.89
FC8	27.07	12.00	41.70	42.05	0.35
FC9	25.00	10.00	46.70	44.50	2.20