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Table 2 Summary of fatty acid compositional profiles at steady state for algal lipids from the different isolates cultivated in semi-continuous mode at different dilution rates

From: Evaluation of native microalgae from Tunisia using the pulse-amplitude-modulation measurement of chlorophyll fluorescence and a performance study in semi-continuous mode for biofuel production

 

Chlorella sp.

Scenedesmus sp.

D, 1/day

0.08

0.20

0.30

0.38

0.45

0.50

0.10

0.20

0.30

0.40

0.50

14:0

–

–

–

–

–

–

–

–

–

–

–

16:0

–

–

–

17.40

15.40

14.80

–

16.40

16.50

16.30

16.00

16:1n7

33.10

16.60

14.50

2.30

–

–

18.80

2.90

2.60

2.60

2.70

16:2n4

6.30

12.90

5.30

4.40

4.20

4.30

3.20

2.30

–

3.00

–

16:3n4

5.00

6.90

10.00

9.50

11.20

10.70

2.90

–

–

–

–

16:4n1

–

–

3.70

2.40

–

–

9.10

11.80

13.50

13.70

13.80

18:0

1.80

–

3.50

–

2.80

3.20

–

–

7.10

6.80

–

18:1n9

8.40

–

2.80

6.90

2.40

2.80

11.70

7.80

–

–

6.90

18:1n7

–

–

–

–

–

–

–

–

–

–

–

18:2n6

–

–

–

14.20

13.40

12.90

–

14.10

11.30

9.70

8.40

18:3n3

9.30

13.20

–

28.10

30.00

28.30

16.20

24.50

28.10

29.90

31.90

18:4n3

16.40

19.50

–

–

–

–

20.20

1.80

1.80

1.80

–

20:4n6

–

–

–

–

–

–

–

–

–

–

–

20:1n9

3.00

3.00

–

2.20

3.20

3.20

–

–

–

–

–

22:5n3

–

–

–

–

–

–

–

–

–

–

–

SFA

1.80

–

3.50

17.40

18.20

18.00

–

16.40

23.50

23.10

16.00

MUFA

44.50

19.60

19.40

11.40

5.60

3.20

30.50

10.70

2.60

2.60

9.60

PUFA

37.00

52.50

57.50

58.70

58.90

56.30

51.60

54.60

54.80

58.10

54.10

 

Nitzschia sp.

Tetraselmis sp.

D, 1/day

0.10

0.20

0.30

0.10

0.20

0.30

0.40

0.50

0.60

0.80

0.90

14:0

6.60

7.60

6.30

–

–

–

–

–

–

–

–

16:0

23.70

25.20

20.80

14.90

14.60

14.80

16.00

11.40

17.00

17.90

18.00

16:1n7

47.70

43.60

34.40

3.20

3.00

2.30

2.40

2.30

1.90

1.70

1.40

16:2n4

1.80

2.20

4.20

8.00

8.00

7.30

6.00

5.60

5.00

4.50

4.00

16:3n4

1.60

2.40

5.10

0.50

5.30

6.40

8.80

8.90

10.20

11.40

10.30

16:4n1

–

–

–

6.40

12.40

11.70

11.50

11.00

9.80

10.10

10.80

18:0

1.40

1.50

–

12.70

2.30

2.10

0.90

13.90

12.20

10.60

9.80

18:1n9

1.70

1.60

1.80

2.50

17.90

16.40

14.10

14.70

16.50

17.50

20.20

18:1n7

–

–

–

–

13.00

14.50

13.30

–

–

–

–

18:2n6

–

–

–

17.00

–

–

–

2.80

–

–

–

18:3n3

8.00

7.80

19.00

10.90

0.70

0.90

1.60

1.60

2.00

2.30

2.40

18:4n3

–

–

–

0.80

0.90

0.90

1.20

1.20

–

1.40

1.60

20:4n6

–

–

–

2.80

1.00

1.20

1.70

1.90

2.30

2.80

3.10

20:1n9

–

–

–

–

3.00

3.10

2.60

2.40

2.20

2.20

1.80

22:5n3

7.70

7.90

13.00

–

–

–

–

–

–

–

–

SFA

31.80

34.40

27.00

27.60

16.90

16.90

16.90

25.30

29.30

28.50

27.80

MUFA

49.60

45.20

36.20

5.80

37.00

36.40

32.40

19.40

20.60

21.40

23.50

PUFA

11.00

12.50

22.40

46.50

28.30

28.40

31.00

33.20

29.40

32.60

32.30

  1. Data are mean value of two repetitions
  2. SFA: Saturated fatty acids; MUFA: mono unsaturated fatty acids; PUFA: poly unsaturated fatty acids