Table 2 VOCs of Shengli grass and classification results of its volatile components.

A1

Selina-3,7(11)-diene

6813-21-4

C₁₅ H₂₄

–

29.5

20.84

A2

γ-Himachalene

53111-25-4

C₁₅ H₂₄

18.89

–

–

A3

m-Cymene

535-77-3

C₁₀ H₁₄

6.62

13.77

26.17

A4

Linalyl propionate

144-39-8

C₁₃ H₂₂ O₂

–

17.19

–

A5

1,2,4,5-Tetramethyl benzene

95-93-2

C₁₀ H₁₄

–

0.02

0.04

A6

Bornyl acetate

5655-61-8

C₁₂ H₂₀ O₂

8.9

–

–

A7

γ-Selinene

515-17-3

C₁₅ H₂₄

–

–

12.74

A8

Isocaryophyllene

118-65-0

C₁₅ H₂₄

6.93

–

–

A9

trans-Caryophyllene

87-44-5

C₁₅ H₂₄

6.24

–

–

A10

α-Phellandrene

99-83-2

C₁₀ H₁₆

1.13

2.7

7.14

A11

Coumarin

91-64-5

C₉ H₆ O₂

–

0.36

6.42

A12

γ-Gurjunene

22567-17-5

C₁₅ H₂₄

4.1

–

–

A13

Bicyclosesqui phellandrene

54324-03-7

C₁₅ H₂₄

–

1.51

6.13

A14

o-Cymene

527-84-4

C₁₀ H₁₄

3.94

1.61

0.05

A15

4-Nitrosotoluene

623-11-0

C₇ H₇ N O

4.63

–

–

A16

β-Sesquiphellandrene

20307-83-9

C₁₅ H₂₄

3.03

–

–

A17

Germacrene D

23986-74-5

C₁₅ H₂₄

–

3.42

0.17

A18

α-Ylangene

14912-44-8

C₁₅ H₂₄

–

0.13

-

A19

trans-α-Bergamotene

13474-59-4

C₁₅ H₂₄

2.93

-

-

A20

α-Caryophyllene

6753-98-6

C₁₅ H₂₄

-

3.03

2

A21

Neryl Acetate

141-12-8

C₁₂ H₂₀ O₂

2.14

–

–

A22

α-Copaene

3856-25-5

C₁₅ H₂₄

–

–

2.86

A23

Benzofuran

271-89-6

C₈ H₆ O

–

0.07

–

A24

β-Phellandrene

555-10-2

C₁₀ H₁₆

–

1.31

–

A25

Neryl propionate

105-91-9

C₁₃ H₂₂ O₂

–

1.27

0.04

A26

Neryl formate

2142-94-1

C₁₁ H₁₈ O₂

–

1.1

–

A27

o-Acetyl-p-cresol

1450-72-2

C₉ H₁₀ O₂

0.46

0.11

1.43

A28

(-)-Borneol

464-45-9

C₁₀ H₁₈ O

0.73

–

–

A29

2-Isopropyl-5-methyl-9-methylene-bicyclo [4.4.0]dec-1-ene

150320-52-8

C₁₅ H₂₄

0.67

–

–

A30

Geranyl isovalerate

109-20-6

C₁₅ H₂₆ O₂

–

–

0.85

A31

Trigonelline

535-83-1

C₇ H₇ N O₂

–

0.53

–

A32

4-Phenyl undecane

4536-86-1

C₁₇ H₂₈

–

–

0.62

A33

α-Muurolene

31983-22-9

C₁₅ H₂₄

–

–

0.01

A34

1,4-Cadinadiene

29837-12-5

C₁₅ H₂₄

0.32

0.13

–

A35

(-)-Clovene

469-92-1

C₁₅ H₂₄

0.32

–

–

A36

α-Cubebene

17699-14-8

C₁₅ H₂₄

–

–

0.47

A37

(E)-para-2,8-1-Menthadienol

7212-40-0

C₁₀ H₁₆ O

0.3

–

–

A38

Thymoquinone

490-91-5

C₁₀ H₁₂ O₂

–

–

0.29

A39

Geranyl propionate

105-90-8

C₁₃ H₂₂ O₂

–

0.25

–

A40

Citral

5392-40-5

C₁₀ H₁₆ O

0.08

0.23

–

A41

Rotundene

65128-08-7

C₁₅ H₂₄

0.2

–

–

A42

Hexanal

66-25-1

C₆ H₁₂ O

0.15

0.22

0.13

A43

β-Cubebene

13744-15-5

C₁₅ H₂₄

–

–

0.3

A44

Thymol

89-83-8

C₁₀ H₁₄ O

1.02

–

–

A45

(2E,6Z)-Nona-2,6-dienal

557-48-2

C₉ H₁₄ O

0.11

–

–

A46

Nerol

106-25-2

C₁₀ H₁₈ O

–

–

0.16

A47

(-)-Lavandulol

498-16-8

C₁₀ H₁₈ O

–

–

0.13

A48

(+/-)-β-trans-Bergamotene

55123-21-2

C₁₅ H₂₄

0.09

–

–

A49

3,4-Dimethylcyclopent-2-en-1-one

30434-64-1

C₇ H₁₀ O

0.07

–

–

A50

Geranyl formate

105-86-2

C₁₁ H₁₈ O₂

–

0.08

0.04

A51

Cis-3-Hexenyl Butyrate

16491-36-4

C₁₀ H₁₈ O₂

–

–

0.08

A52

2-Pentylfuran

3777-69-3

C₉ H₁₄ O

0.05

–

–

A53

Benzyl Benzoate

120-51-4

C₁₄ H₁₂ O₂

–

0.01

–

A54

4-Thujanol

546-79-2

C₁₀ H₁₈ O

–

–

0.08

A55

Calamenene

483-77-2

C₁₅ H₂₂

–

–

0.07

A56

Melonal

106-72-9

C₉ H₁₆ O

–

12.45

–

A57

α-Amorphene

483-75-0

C₁₅ H₂₄

–

0.05

–

A58

1,3,8-p-Menthatriene

18368-95-1

C₁₀ H₁₄

–

0.02

0.06

A59

(E)-Sabinene hydrate

17699-16-0

C₁₀ H₁₈ O

–

–

0.05

A60

o-Cymen-5-ol

3228/2/2

C₁₀ H₁₄ O

–

–

0.05

A61

γ-Terpinene

99-85-4

C₁₀ H₁₆

–

0.03

0.04

A62

4-Ethenyl-1,2-dimethyl-benzene

27831-13-6

C₁₀ H₁₂

–

0.03

0.03

A63

β-Thujene

28634-89-1

C₁₀ H₁₆

0.02

–

0.01

A64

Isobutyric acid

79-31-2

C₄ H₈ O₂

0.02

–

0.03

A65

1-Hexene

592-41-6

C₆ H₁₂

0.02

0.01

0.03

A66

α-Terpinene

99-86-5

C₁₀ H₁₆

0.01

0.01

–

A67

2,4,6-Octatrienal

17609-31-3

C₈ H₁₀ O

0.02

–

–

A68

β-Terpinene

99-84-3

C₁₀ H₁₆

–

–

0.02

A69

cis-3-Hexenyl acetate

3681-71-8

C₈ H₁₄ O₂

–

–

0.02

A70

Dimethyl terephthalate

120-61-6

C₁₀ H₁₀ O₄

0.01

–

–

A71

1-Phenylethanol

98-85-1

C₈ H₁₀ O

–

0.02

–

A72

Isoterpinolene

586-63-0

C₁₀ H₁₆

–

0.01

0.01

A73

Neryl isovalerate

3915-83-1

C₁₅ H₂₆ O₂

0.01

–

–

A74

6-Hydroxykynurenic acid

3778-29-8

C₁₀ H₇ N O₄

–

0.03

–

A75

Pentanal

110-62-3

C₅ H₁₀ O

0.01

–

0.01

A76

Tiglinic acid

13201-46-2

C₅ H₈ O₂

–

–

0.01

A77

Phenylacetaldehyde

122-78-1

C₈ H₈ O

0.01

–

–

A78

Linalyl isobutyrate

78-35-3

C₁₄ H₂₄ O₂

0.01

–

–

A79

p-Cymen-8-ol

1197-01-9

C₁₀ H₁₄ O

–

–

0.01

A80

Perillen

539-52-6

C₁₀ H₁₄ O

0.01

0.01

–

A81

3’-Hydroxyacetophenone

121-71-1

C₈ H₈ O₂

–

–

0.01

A82

Angelic acid

565-63-9

C₅ H₈ O₂

–

–

0.01

A83

Isovaleraldehyde

590-86-3

C₅ H₁₀ O

–

–

0.01

A84

Acetanisole

100-06-1

C₉ H₁₀ O₂

–

0.003

–

A85

Isobutyraldehyde

78-84-2

C₄ H₈ O

0.01

–

–

A86

3-Buten-2-ol

598-32-3

C₄ H₈ O

–

0.01

–

A87

Phenoxyethanol

122-99-6

C₈ H₁₀ O₂

0.01

–

–

A88

(Z)-γ-bisabolene

13062-00-5

C₁₅ H₂₄

7.04

5.76

0.4

A89

Himachala-2,4-diene

60909-27-5

C₁₅ H₂₄

6.74

–

–

A90

Lavandulyl caproate

59550-36-6

C₁₆ H₂₈ O₂

4.97

–

3.54

A91

Longifolene-I2

1000162-76-7

C₁₅ H₂₄

4.45

–

–

A92

β-Bergamotene

1000425-19-8

C₁₅ H₂₄

0.06

–

–

A93

3,4-Decadiene

37050-04-7

C₁₀ H₁₈

–

0.04

0.12

A94

Benzoin ethyl ether

574-09-4

C₁₆ H₁₆ O₂

–

0.03

–

A95

β-Copaene

18252-44-3

C₁₅ H₂₄

–

1.9

–

A96

Thymyl tiglate

101162-18-9

C₁₅ H₂₀ O₂

–

–

3.24

A97

Neryl tiglate

93981-55-6

C₁₅ H₂₄ O₂

–

–

1.6

A98

Nerolidol 2

1000285-43-6

C₁₅ H₂₆ O

–

–

0.08

A99

Geranyl tiglate

7785-33-3

C₁₅ H₂₄ O₂

–

1.05

1.54

A100

(−)-β-Bourbonene

5208-59-3

C₁₅ H₂₄

–

–

0.15

Classify

Terpenes

60.02

49.58

53.5

Esters

19.05

20.94

10.84

Aromatics

10.62

15.49

26.91

Alcohols

1.03

0.02

0.32

Aldehydes

0.38

12.91

0.14

Ketones

0.54

0.47

7.86

Acids

0.02

0.03

0.04

Phenols

1.02

0

0.05

Other

0

0.56

0.34