Table 6 Peak assignment for the GC–MS chromatograms of the acidic fractions of samples KLR-8008 and KLR-8012 in Fig. 6

1

8.0

Benzoic acid

2

8.3

Octanoic acid

3

8.8

Tridecane

4

9.6

Nonanoic acid

5

10.2

Tetradecane

6

10.9

Decanoic acid

7

11.4

Heptanedioic acid, 1-methyl ester

8

11.7

Hexanedioic acid

9

12.1

Undecanoic acid

10

12.7

Hexadecane (IS1)

11

12.6

Octanedioic acid, 1-methyl ester

12

12.8

Heptanedioic acid

13

13.2

Dodecanoic acid

14

13.7

Octanedioic acid, 1-methyl ester

15

13.7

Octanedioic acid

*

13.9

Phthalic acid

16

14.3

Tridecanoic acid (IS2)

*

15.1

Terephthalic acid

17

14.9

Nonanedioic acid

18

15.0

ω-hydroxy-decanoic acid

19

15.1

Tetradecanoic acid (br)

20

15.6

Tetradecanoic acid

*

15.9

Phthalate (contaminant)

21

16.3

Decanedioic acid

22

16.6

Pentadecanoic acid (br)

23

16.8

Pentadecanoic acid (br)

24

17.4

Hexadecanoic acid, methyl ester

25

17.3

Pentadecanoic acid

26

18.0

Undecanedioic acid

27

18.3

Hexadecanoic acid (br)

28

18.8

(Z)-9-hexadecenoic acid

29

19.0

(E)-9-hexadecenoic acid

30

18.9

Hexadecanoic acid

31

19.5

Dodecanedioic acid

32

19.8

Heptadecanoic acid (br)

33

19.9

Heptadecanoic acid (br)

34

20.4

Octadecanoic acid, methyl ester

35

20.3

Heptadecanoic acid

36

20.7

Tridecanedioic acid

37

21.0

Octadecanoic acid (br)

38

21.4

9,12-octadecadienoic acid

39

21.1

(Z)-9-octadecenoic acid

40

21.7

(E)-9-octadecenoic acid

41

21.5

Octadecanoic acid

42

21.9

Tetradecanedioic acid

43

22.2

Nonadecanoic acid (br)

44

22.5

Hydroxycarboxylic FA -TMS

45

22.5

Nonadecanoic acid

46

22.8

Pentadecanedioic acid

47

23.0

ω-hydroxyhexadecanoic acid

48

23.3

Unknown (73, 129, 227, 329)

49

23.5

10-oxo-octadecanoic acid

50

23.5

eicosanoic acid

51

24.3

9,x-dihydroxyoctadecanoic acid (?)

52

24.5

9,x-dihydroxyoctadecanoic acid (?)

53

24.6

9,x-dihydroxyoctadecanoic acid (?)

54

23.8

Hexadecanedioic acid

55

24.0

ω-hydroxyoctadecanoic acid

56

24.4

Heneicosanoic acid

57

25.0

9,x-dihydroxyoctadecanoic acid (?)

58

25.2

Docosanoic acid

59

26.1

Tricosanoic acid

60

27.0

Tetracosanoic acid

61

30.4

Hexacosanoic acid

62

32.3

Cholesterol (traces)