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Table 2 Central composite design and responses of the dependent variables for the flying fish roe analogs processing to the independent variables

From: Production optimization of flying fish roe analogs using calcium alginate hydrogel beads

Run order Coded level Response
X 1 X 2 X 3 X 4 Y 1
Factorial portion
 1 −1 −1 −1 −1 84.2
 2 1 −1 −1 −1 91.7
 3 −1 1 −1 −1 91.3
 4 1 1 −1 −1 95.5
 5 −1 −1 1 −1 84.2
 6 1 −1 1 −1 92.0
 7 −1 1 1 −1 90.0
 8 1 1 1 −1 95.5
 9 −1 −1 −1 1 81.0
 10 1 −1 −1 1 91.7
 11 −1 1 −1 1 82.6
 12 1 1 −1 1 91.7
 13 −1 −1 1 1 81.8
 14 1 −1 1 1 94.4
 15 −1 1 1 1 89.5
 16 1 1 1 1 95.2
Axial portion
 17 −2 0 0 0 68.4
 18 2 0 0 0 95.5
 19 0 −2 0 0 91.7
 20 0 2 0 0 94.7
 21 0 0 −2 0 88.9
 22 0 0 2 0 85.7
 23 0 0 0 2 95.0
 24 0 0 0 2 86.4
Center portion
 25 0 0 0 0 97.5
 26 0 0 0 0 98.2
 27 0 0 0 0 97.7
  1. Y (sphericity, %), X 1 (sodium alginate concentration, %), X 2 (curing time in calcium chloride solution, min), X 3 (calcium chloride concentration, %), X 4 (rotation speed of calcium chloride solution, ×g)