Table 2 GC/MS analyses of Cinnamomum cassia oils obtained through three different extraction methods

1

Cyclosativene

1125

0.32

0.37

0.18

2

Cinnamaldehyde

1283

83.19

75.94

72.36

3

Cinnamyl acetate

1367

5.77

2.0

3.46

4

α-Copaene

1377

2.30

3.77

9.81

5

Coumarin

1439

2.60

3.77

5.64

6

Cubinene

1440

0.44

1.09

–^b

7

α-Humulene

1467

0.19

–

0.29

8

β-Caryophyllene

1494

–

–

0.56

9

3-Ethoxy-hexa-1,5-dienyl-benzene

1499

0.40

0.29

–

10

δ-Cadinene

1519

1.77

3.81

3.58

11

Muurolene

1523

1.39

3.75

2.42

12

α-Cedrene

1580

0.45

0.20

–

13

Cadinol

1676

0.57

–

–

14

α-Calacorene

1859

0.22

–

–

Major grouped compounds

Phenylpropanoid esters

5.77

2.0

3.46

Phenylpropanoid hydrocarbons

83.59

76.23

72.36

Sesquiterpene alcohol

0.57

–

–

Sesquiterpene hydrocarbons

7.08

12.99

16.84

Sesquiterpene ketones

2.60

3.77

5.64

Total (%)

99.61

94.99

98.3

Yield (%)

0.65

4.06

7.61