Table 3 Fatty acid profiles of R. toruloides during early exponential phase and lipid accumulation phase following batch cultivation in medium containing either glucose or xylose (presented as percentage of total identified, average ± standard deviation)

C14:0

0.98 ± 0.25

1.03 ± 0.26

0.91 ± 0.03

1.23 ± 0.09

1.25 ± 0.05

1.28 ± 0.04

1.1 ± 0.07

C16:0

14.35 ± 1.9

17.91 ± 2.5

17.16 ± 0.01

26.63 ± 0.22

25.76 ± 0.24

26.73 ± 0.26

25.55 ± 0.3

C16:1

1.39 ± 0.28

0.96 ± 0.1

0.51 ± 0.02

0.98 ± 0.05

0.53 ± 0.01

1.00 ± 0.04

0.57 ± 0.05

C17:0

n.d.

0.76 ± 0.13

n.d.

n.d.

n.d.

n.d.

n.d.

C17:1

0.75 ± 0.18

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

C18:0

3.84 ± 0.44

5.55 ± 0.57

7.63 ± 0.5

8.11 ± 0.28

9.31 ± 0.19

7.73 ± 0.22

7.83 ± 0.56

C18:1 (n − 9)

66.66 ± 2.28

46.27 ± 3.05

36.99 ± 1.3

45.26 ± 0.5

47.23 ± 0.61

45.07 ± 0.7

47.25 ± 1.06

C18:2 (n − 6)

6.62 ± 0.33

20.36 ± 4.16

23.56 ± 0.71

13.51 ± 0.69

11.58 ± 0.5

13.83 ± 0.57

13.06 ± 0.68

C18:3 (n − 3)

3.38 ± 0.86

5.74 ± 1.9

11.25 ± 0.98

2.78 ± 0.15

2.94 ± 0.22

2.99 ± 0.19

3.01 ± 0.25

C24:0

0.9 ± 0.01

1.15 ± 0.13

0.66 ± 0.05

0.73 ± 0.05

0.76 ± 0.02

0.67 ± 0.05

0.91 ± 0.13

Avg length

17.4891

17.5942

17.4104

17.3038

17.3546

17.3084

17.3586

Avg desaturation

0.9218

1.0517

1.1837

0.816

0.7974

0.827

0.8297