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Table 1 D-optimal design arrangement and responses for non-urea-complexed fraction (NUCF) of Jatropha curcas seed oil

From: Selectively increasing of polyunsaturated (18:2) and monounsaturated (18:1) fatty acids in Jatropha curcas seed oil by crystallization using D-optimal design

 

Variables levels

Responses, Y

Run no.

Urea-FAsa(X 1 )

Temp.b(X 2 )

Timec(X 3 )

Y 1 , Yield (%)

C16:0 (%)

C18:0 (%)

Y 2 , SFAs (C16:0+C18:0) (%)

Y 3 , MUFA (C18:1) (%)

Y 4 , LA (C18:2) (%)

1

1

10

8

49

1.44

-

1.44

36.50

58.23

2

3

0

24

22.2

0.56

0.26

0.82

13.25

85.16

3

2

0

16

34.9

0.44

-

0.44

28.87

69.41

4

3

-10

8

32.3

0.49

-

0.49

20.90

77.74

5

5

10

24

7.7

0.43

-

0.43

9.37

88.60

6

5

-10

24

7.8

0.33

-

0.33

5.73

92.81

7

1

10

24

50.6

3.25

0.30

3.55

39.67

54.91

8

1

-10

24

34.1

0.58

-

0.58

34.64

61.46

9

5

10

8

8.8

1.23

-

1.23

9.94

87.82

10

5

0

16

6.2

0.97

-

0.97

8.95

89.19

11

1

-10

16

48.1

1.17

-

1.17

35.55

59.85

12

1

0

8

31.3

2.79

-

2.79

39.58

54.63

13

5

10

24

4.1

0.94

0.28

1.23

6.31

92.14

14

3

10

16

31.6

0.19

-

0.19

20.09

78.42

15

1

10

8

45.6

3.65

0.33

3.99

40.49

52.53

16

5

-10

8

6.6

0.89

-

0.89

9.10

88.92

17

5

0

8

20.5

0.34

-

0.34

10.30

88.12

18

1

10

16

49.7

1.17

-

1.17

41.30

54.87

  1. Notes: C16:0, palmitic acid; C18:0, stearic acid; C18:1, oleic acid; C18:1, linoleic acid; SFAs, saturated fatty acids; MUFA, monounsaturated fatty acid; LA, linoleic acid;
  2. a urea-to-FAs ratio (w/w).
  3. b crystallization temperature (°C).
  4. c crystallization time (h).