Table 2 Constituents and relative contents (%, w/w) of essential oils from five different plantation timbers in Taiwan

1

α-Pinene

0.32 ± 0.14

1.42 ± 0.22

4.59 ± 1.13

2

Camphene

0.09 ± 0.02

0.09 ± 0.05

3

Thuja-2,4(10)-diene

0.02 ± 0.02

0.01 ± 0.01

0.45 ± 0.10

4

Limonene

0.03 ± 0.02

0.04 ± 0.01

0.31 ± 0.08

0.29 ± 0.02

5

Terpinolene

0.08 ± 0.05

0.07 ± 0.00

6

Fenchone

0.05 ± 0.01

7

α-p-Dimethylstyrene

0.11 ± 0.03

0.02 ± 0

0.08 ± 0.08

0.91 ± 0.03

8

endo-Fenchol

0.03 ± 0

0.65 ± 0.15

0.26 ± 0.00

9

α-Campholenal

0.03 ± 0.03

0.01 ± 0.01

0.32 ± 0.02

10

cis-Verbenol

0.13 ± 0.02

0.06 ± 0.01

0.43 ± 0.01

11

trans-Verbenol

0.19 ± 0.02

0.10 ± 0

0.41 ± 0.08

12

Pinocarvone

0.12 ± 0.00

13

Isoborneol

0.06 ± 0.05

14

Borneol

0.14 ± 0.03

0.08 ± 0.01

1.41 ± 0.28

2.94 ± 0.11

0.02 ± 0.01

15

Terpinen-4-ol

0.10 ± 0.02

0.08 ± 0.01

0.14 ± 0.03

0.66 ± 0.01

16

2,4-Dimethylstyrene

0.04 ± 0.01

0.05 ± 0.00

0.15 ± 0.10

3.54 ± 0.07

17

Myrtenal

14.20 ± 3.00

2.87 ± 0.11

18

Myrtenal +α-Terpineol

3.17 ± 0.13

0.18 ± 0.03

19

α-Terpineol

10.00 ± 2.13

20

Verbenone

0.15 ± 0.02

0.09 ± 0.04

3.19 ± 0.03

21

endo-Fenchyl acetate

0.04 ± 0.01

22

trans-Carveol

0.03 ± 0.01

0.68 ± 0.03

23

cis-Carveol

0.06 ± 0.01

24

Carvone

0.09 ± 0.01

25

Geraniol

0.15 ± 0.03

26

trans-Myrtanol

18.04 ± 2.70

0.87 ± 0.07

0.40 ± 0.05

0.03 ± 0.00

27

Isoborneol acetate

0.33 ± 0.07

0.29 ± 0.02

0.13 ± 0.03

0.92 ± 0.01

0.01 ± 0.01

28

Methyl myrtenate

0.08 ± 0.02

29

Carvacrol

0.76 ± 0.36

30

α-Cubebene

0.55 ± 0.06

1.27 ± 0.06

0.14 ± 0.01

31

α-Terpinyl acetate

0.82 ± 0.16

0.87 ± 0.02

32

2-Allyl-4-methylphenol

0.07 ± 0.02

33

α-Copaene

0.07 ± 0.01

0.11 ± 0.02

0.05 ± 0.02

0.06 ± 0.00

0.09 ± 0.01

34

β-Cubebene + β-Elemene

1.56 ± 0.09

1.65 ± 0.02

0.24 ± 0.02

35

β-Elemene

0.13 ± 0.01

0.80 ± 0.05

36

Sibirene

0.27 ± 0.03

0.15 ± 0.01

0.06 ± 0.01

37

Longifolene

0.02 ± 0.02

0.09 ± 0.01

38

α-Cedrene

0.67 ± 0.01

5.13 ± 0.81

0.06 ± 0.01

1.12 ± 0.14

39

trans-β-Caryophyllene

0.03 ± 0.02

0.24 ± 0.01

0.11 ± 0.01

40

β-Cedrene

0.29 ± 0.01

2.33 ± 0.21

0.53 ± 0.08

41

Thujopsene

0.13 ± 0.01

0.26 ± 0.04

0.77 ± 0.08

42

cis-Muurola-3,5-diene

0.18 ± 0.01

0.48 ± 0.02

0.06 ± 0.00

43

α-Humulene

0.06 ± 0.01

0.21 ± 0.01

0.07 ± 0.01

0.10 ± 0.01

44

β-Selinene

0.35 ± 0.02

0.11 ± 0.01

0.42 ± 0.04

0.09 ± 0.01

45

trans-Muurola-4(14),5-diene

0.41 ± 0.02

1.70 ± 0.12

0.11 ± 0

46

γ-Amorphene

1.58 ± 0.11

4.75 ± 0.48

0.24 ± 0.02

47

α-Muurolene

0.73 ± 0.03

2.93 ± 0.08

0.48 ± 0.05

1.12 ± 0.10

2.18 ± 0.14

48

γ-Cadinene

0.93 ± 0.01

0.70 ± 0.08

2.59 ± 0.15

3.76 ± 0.19

49

Cubebol

1.97 ± 0.48

5.69 ± 0.56

50

δ-Cadinene

5.31 ± 0.34

11.96 ± 0.46

1.86 ± 0.16

1.36 ± 0.16

7.60 ± 0.50

51

trans-Calamenene

5.76 ± 0.11

0.70 ± 0.09

1.05 ± 0.08

52

trans-Cadina-1,4-diene

0.20 ± 0.02

1.19 ± 0.11

53

α-Cadinene

0.11 ± 0.00

0.56 ± 0.05

54

α-Calacorene

0.13 ± 0.01

0.84 ± 0.01

0.12 ± 0.02

2.77 ± 0.25

1.17 ± 0.08

55

β-Elemol

9.20 ± 0.37

1.03 ± 0.05

0.05 ± 0.00

0.16 ± 0.04

0.19 ± 0.01

56

β-Calacorene

0.28 ± 0.01

0.64 ± 0.06

0.30 ± 0.01

57

E-Nerolidol

0.24 ± 0.02

0.01 ± 0.01

58

Globulol

0.31 ± 0.02

0.48 ± 0.03

59

9,11-Epoxy-guaia-3,10(14)-diene

0.54 ± 0.02

60

Cedrol

3.96 ± 0.48

62.26 ± 5.17

16.29 ± 0.30

61

1-epi-Cubenol

2.32 ± 0.10

15.99 ± 0.69

0.44 ± 0.03

1.38 ± 0.17

1.41 ± 0.06

62

γ-Eudesmol

2.28 ± 0.13

0.47 ± 0.05

0.71 ± 0.04

63

T-Cadinol + T-Muurolol

9.26 ± 0.16

23.45 ± 0.43

64

T-Cadinol + T-Muurolol + δ-Cadinol

6.84 ± 0.45

1.13 ± 0.10

21.49 ± 2.13

65

δ-Cadinol

3.79 ± 0.19

4.00 ± 0.17

66

α-Cadinol

26.42 ± 1.94

27.98 ± 0.51

67

α-Cadinol + α-Eudesmol

17.26 ± 4.04

6.97 ± 0.19

1.88 ± 0.16

68

Cadalene

0.37 ± 0.02

0.22 ± 0.03

3.06 ± 0.12

0.46 ± 0.01

69

α-Bisabolol

0.34 ± 0.03

0.46 ± 0.03

70

10-nor-Calamenen-10-one

0.37 ± 0.07

71

Cryptomerione

1.36 ± 0.05

72

γ-Costol

0.31 ± 0.25

0.36 ± 0.06

73

β-Costol

0.55 ± 0.54

0.04 ± 0.01

74

β-Costol + α-Costol

0.27 ± 0.06

75

α-Costol

0.56 ± 0.58

76

14-Hydroxy-α-muurolene

0.07 ± 0.06

77

Abietatriene

0.14 ± 0.01

78

Abietadiene

0.51 ± 0.02

79

Sandaracopimarinal

0.37 ± 0.05

80

Phyllocladan-16α-ol

0.88 ± 0.19

81

Sandaracopimarinol

0.73 ± 0.23

82

6,7-Hydro-ferruginol

0.27 ± 0.47

83

Ferruginol

1.30 ± 0.58

1.07 ± 0.76

Total

86.24

89.21

94.03

81.12

95.60