[Retracted] Process Optimization for Development of Guar Gum-Based Biodegradable Hydrogel Film Using Response Surface Methodology

Table 2

Box–Behnken three variables experimental design for development of hydrogel-based packaging film.

Experiment no.	Coded value			Actual value
	X1	X2	X3	Initiator (mg/100 mL GS)	Cross linker (mg/100 mL GS)	Glycerol (mL/100 mL GS)
1	−1	−1	0	0.05	0.02	4
2	0	0	0	0.1	0.05	4
3	0	−1	1	0.1	0.02	6
4	0	0	0	0.1	0.05	4
5	1	0	1	0.15	0.05	6
6	0	0	0	0.1	0.05	4
7	0	0	0	0.1	0.05	4
8	1	1	0	0.15	0.08	4
9	0	1	1	0.1	0.08	6
10	1	−1	0	0.15	0.02	4
11	0	−1	−1	0.1	0.02	2
12	1	0	−1	0.15	0.05	2
13	−1	1	0	0.05	0.08	4
14	0	0	0	0.1	0.05	4
15	0	1	−1	0.1	0.08	2
16	−1	0	−1	0.05	0.05	2
17	−1	0	1	0.05	0.05	6