Coded and decoded values of independent and dependent variables for response surface metrology.
Independent variables | Coded | Decoded | Dependent variables | Coded | ||||
---|---|---|---|---|---|---|---|---|
- 2 | - 1 | 0 | + 1 | + 2 | ||||
MD |
X1 | 10 | 15 | 20 | 25 | 30 | Encapsulation yield (%) | Y1 |
Inlet temperature of spray drying (°C) | X2 | 80 | 88 | 95 | 103 | 110 | Viability (%) | Y2 |
1)MD: maltodextrin