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Table 4 Effects of glucose concentration on fatty acids (FA) composition

From: Single cell oils of the cold-adapted oleaginous yeast Rhodotorula glacialis DBVPG 4785

Glucose

(g L-1)

Relative abundance of FA (w/w %)

UI

 

C14

C16

C16:1

C18

C18:1

C18:2

C18:3

Total

C16

Total

C18

Total

SFA

Total

MUFA

Total

PUFA

 

1.6

3.1a

14.4a

0.4a

7.4a

4.3e

43.8ab

26.6a

14.8a

82.1a

25.3a

4.3f

70.4a

1.72a

4

3.1a

15.1a

1.1a

7.2a

6.3de

43.1ab

24.1a

16.2a

80.7a

25.4a

7.4e

67.2a

1.66a

8

2.6a

13.2a

1.4a

6.8a

7.7d

43.5ab

24.8a

14.6a

83.1a

22.6a

9.1e

68.3a

1.71a

16

3.4a

16.6a

1.6a

6.6a

20.3c

46.7a

4.8b

18.2a

78.5a

26.6a

21.9d

51.5b

1.30b

40

3.2a

16.0a

1.6a

5.2a

28.6b

41.0b

4.4b

17.6a

79.0a

24.4a

30.2c

45.4c

1.26bc

80

3.1a

14.2a

1.2a

6.3a

33.4a

36.2c

5.5b

15.4a

81.5a

23.6a

34.6bc

41.7d

1.24c

120

4.6a

14.4a

0.5a

6.3a

36.3a

33.1c

4.8b

15.0a

80.4a

25.3a

36.8ab

37.9e

1.17d

160

4.4a

14.0a

1.5a

6.3a

35.5a

34.6c

3.8b

15.4a

80.1a

24.7a

37a

38.4e

1.18d

  1. R. glacialis DBVPG 4785 was cultured at different temperatures in GMY medium containing 40 g L-1 glucose. FA within the lipid extract were transformed into the corresponding methyl-esters and were analyzed as described in Methods section. The relative abundance of each FA, the sum of 16- and 18-carbons FA, the sum of the saturated, mono-unsaturated, and poly-unsaturated ones (SFA, MUFA, and PUFA, respectively), and the unsaturation index (UI) are reported as a function initial glucose concentration. The values are means of three independent experiments. Within a column, superscripts indicate statistically similar means, P > 0.05, n = 3.