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Table 3 FA composition, content and proportion of T. lutea after the 16-day cultivation under three culture modes

From: Effect of cultivation mode on the production of docosahexaenoic acid by Tisochrysis lutea

FA

Autotrophy

Mixotrophy

Heterotrophy

Content (mg/g)

Proportion (%)

Content (mg/g)

Proportion (%)

Content (mg/g)

Proportion (%)

SFAs

 C13:0

1.89 ± 0.00

0.72 ± 0.00

1.79 ± 0.32

0.64 ± 0.11

0.65 ± 0.01

0.80 ± 0.01

 C14:0

46.17 ± 0.3

17.70 ± 0.11

49.46 ± 2.00

17.75 ± 0.72

11.49 ± 0.07

14.13 ± 0.09

 C15:0

0.58 ± 0.06

0.22 ± 0.02

1.09 ± 0.11

0.39 ± 0.04

ND

ND

 C16:0

26.53 ± 0.97

10.17 ± 0.37

28.86 ± 3.54

10.36 ± 1.27

10.93 ± 0.12

13.44 ± 0.15

 C17:0

2.41 ± 0.04

0.92 ± 0.02

2.22 ± 0.06

0.80 ± 0.09

ND

ND

 C18:0

1.39 ± 0.14

0.53 ± 0.05

0.83 ± 0.08

0.30 ± 0.14

0.79 ± 0.02

0.97 ± 0.02

 C20:0

0.64 ± 0.04

0.24 ± 0.02

1.00 ± 0.11

0.36 ± 0.08

2.50 ± 0.03

3.07 ± 0.03

 Sum

79.6 ± 1.56

30.50 ± 0.59

85.25 ± 1.82

30.60 ± 0.45

26.35 ± 0.24

32.41 ± 0.30

MUFAs

 C16:1

12.66 ± 0.15

4.85 ± 0.06

13.31 ± 2.2

4.78 ± 0.79

9.14 ± 0.13

11.24 ± 0.16

 C17:1

0.82 ± 0.01

0.31 ± 0.00

0.79 ± 0.14

0.28 ± 0.00

2.59 ± 0.05

3.18 ± 0.06

 C18:1

33.31 ± 0.48

12.77 ± 0.18

34.92 ± 2.77

12.54 ± 1.51

10.86 ± 0.66

13.36 ± 0.81

 C20:1

1.16 ± 0.01

0.44 ± 0.01

1.10 ± 0.03

0.40 ± 0.01

0.92 ± 0.07

1.14 ± 0.09

 Sum

47.94 ± 0.65

18.37 ± 0.25

50.13 ± 12.14

18.00 ± 0.36

23.51 ± 0.91

28.92 ± 0.12

PUFAs

 C18:2

29.07 ± 0.73

11.15 ± 0.28

34.21 ± 10.49

12.28 ± 0.77

7.4 ± 0.11

9.10 ± 0.14

 C18:3

27.09 ± 0.01

10.39 ± 0.01

22.49 ± 1.74

8.07 ± 0.62

3.95 ± 0.00

4.86 ± 0.00

 C18:4

33.59 ± 0.33

12.88 ± 0.13

37.02 ± 1.61

13.29 ± 0.58

11.79 ± 0.01

14.5 ± 0.01

 C20:4

0.94 ± 0.04

0.36 ± 0.02

1.19 ± 0.22

0.43 ± 0.08

ND

ND

 C20:5

3.87 ± 0.1

1.49 ± 0.04

3.59 ± 0.55

1.29 ± 0.20

ND

ND

 C22:5

5.51 ± 0.09

2.11 ± 0.04

6.35 ± 0.07

2.28 ± 0.02

0.69 ± 0.97

0.85 ± 1.20

 C22:6

33.18 ± 0.45

12.72 ± 0.17

38.37 ± 0.37

13.77 ± 0.13

7.62 ± 0.30

9.37 ± 0.37

Sum

133.26 ± 1.76

51.10 ± 0.69

143.22 ± 15.05

51.40 ± 0.50

31.44 ± 1.39

38.68 ± 0.72

  1. The values from three biological replicates are expressed as mean ± one standard deviation
  2. SFAs saturated fatty acids, MUFAs monounsaturated fatty acids, PUFAs polyunsaturated fatty acids, ND not detected
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