Table 2 Four-factor, five level CCD and obtained responses for total experimental runs in the precipitation process.

From: Efficient purification of CrocinI from saffron stigmas using antisolvent precipitation to implications for food technology

Run order

Type

Decoded factor

Desirable function

Conc. mg/ml

Ratio v/v

Addition Rate µl/min

Temp ° C

1

Center

50

5

600

32

53.455

2

Fact

40

3

800

28

60.572

3

Fact

60

3

800

36

62.653

4

Fact

40

3

400

36

60.618

5

Fact

60

7

800

28

77.300

6

Fact

40

7

800

36

62.432

7

Fact

40

7

400

28

61.240

8

Center

50

5

600

32

72.942

9

Fact

60

7

400

36

71.531

10

Fact

60

3

400

28

80.636

11

Fact

40

3

800

36

64.296

12

Center

50

5

600

32

68.041

13

Fact

60

7

800

36

66.689

14

Fact

60

3

800

28

81.241

15

Fact

40

7

400

36

82.624

16

Fact

60

7

400

28

83.694

17

Center

50

5

600

32

78.725

18

Fact

60

3

400

36

59.032

19

Fact

40

3

400

28

53.588

20

Fact

40

7

800

28

44.275

21

Axial

50

9

600

32

73.145

22

Axial

70

5

600

32

83.152

23

Axial

50

1

600

32

82.106

24

Axial

50

5

200

32

74.239

25

Axial

50

5

600

40

19.524

26

Center

50

5

600

32

75.552

27

Axial

50

5

600

24

57.617

28

Center

50

5

600

32

72.780

29

Axial

30

5

600

32

79.525

30

Axial

50

5

1000

32

76.715