Table I.
Factors and Their Corresponding Levels Implemented for the Construction of CCD
| Factor | Factor level X | ||||
|---|---|---|---|---|---|
| −α | −1 | 0 | +1 | +α | |
| X 1, alginate (%) | 1.19 | 1.5 | 2.25 | 3 | 3.31 |
| X 2, chitosan (%) | 0.15 | 0.25 | 0.5 | 0.75 | 0.85 |
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