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Table 2 The main experimental design for the selected factors. The completed plan is a “Complete Factorial Plan” with 4 Factors in 2 levels and 16 trials plus 3 points in the center. This plan made it possible to calculate the following and perform a Curvature test: The 4 Main Effects, the 6 Interactions of order 2, the 5 Interactions of order 3, the only Interaction of order 4

From: Syneresis investigations of lacto-fermented sodium caseinate in a mixed model system

Sample

Space type

Sodium caseinate

%(A)

Starch

%(B)

Lactose

%(C)

Ferment lg/l(D)

Dry matter %

1

Factorial

3

0

4

0.2

7

2

Factorial

3

0

4

0.5

7

3

Factorial

3

0

9

0.2

12

4

Factorial

3

0

9

0.5

12

5

Factorial

3

2

4

0.2

9

6

Factorial

3

2

4

0.5

9

7

Factorial

3

2

9

0.2

14

8

Factorial

3

2

9

0.5

14

9

Factorial

8

0

4

0.2

12

10

Factorial

8

0

4

0.5

12

11

Factorial

8

0

9

0.2

17

12

Factorial

8

0

9

0.5

17

13

Factorial

8

2

4

0.2

14

14

Factorial

8

2

4

0.5

14

15

Factorial

8

2

9

0.2

19

16

Factorial

8

2

9

0.5

19

17

Center

5.5

1

6.5

0.35

13

18

Center

5.5

1

6.5

0.35

13

19

Center

5.5

1

6.5

0.35

13