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Table 2 Essential oil composition (expressed as percentage of total extracted oil) for isolated secretory cavities of Eucalyptus‡.

From: Isolation of intact sub-dermal secretory cavities from Eucalyptus

 

E. polybractea

E. globulus

E. froggattii

Essential oil constituent (%, v/v)

mean

s.e.

mean

s.e.

mean

s.e.

Hydrocarbon monoterpenes

α-pinene

1.2

0.1

18.7

0.4

4.5

0.2

camphene

n.d.

 

n.d.

 

1.3

0.4

β-pinene

3.0

0.3

0.2

0.1

0.5

0.1

myrcene

trace

 

2.2

0.1

2.8

0.1

sabinene

trace

 

n.d.

 

1.3

0.1

p-cymene

1.6

0.2

0.5

0.1

0.4

0.0

limonene

2.3

0.1

6.3

0.2

6.6

0.2

β-phellandrene

Trace

 

trace

 

6.7

0.2

Oxygenated monoterpenes

1,8-cineole

58.7

2.8

51.6

0.8

5.0

0.3

cryptone

4.2

0.6

n.d.

 

n.d.

 

α-terpineol

2.0

0.3

2.0

0.2

1.4

0.0

α-terpenyl acetate

1.6

0.3

trace

 

0.4

0.0

Total monoterpenes

74.6

 

81.5

 

30.9

 

Hydrocarbon sesquiterpenes

Allo-aromadendrene

trace

 

1.9

0.2

0.5

0.0

C15H24

trace

 

trace

 

1.4

0.0

aromadendrene

5.8

0.6

1.3

0.1

0.9

0.1

selinene

trace

 

2.6

0.6

0.8

0.1

C15H24

trace

 

trace

 

1.0

0.2

cadinene

2.9

0.6

n.d.

 

2.7

0.2

Oxygenated sesquiterpenes

elemol

trace

 

n.d.

 

10.2

0.3

globulol

6.5

0.9

2.1

0.3

trace

 

spathulenol

1.9

0.5

0.8

0.2

trace

 

α-eudesmol

trace

 

trace

 

8.0

0.3

β-eudesmol

trace

 

n.d.

 

27.4

0.4

C15H26O

trace

 

n.d.

 

7.6

0.3

Total sesquiterpenes

17.1

 

8.7

 

60.5

 

Uncharacterised

8.3

 

9.8

 

8.6

 
  1. ‡Data are presented as the mean and 1 standard error (s.e.) of 20 isolated cavities for each species. Only essential oil constituents with a mean > 1.0% for any species are presented. Trace denotes mean < 0.2%, and n.d. denotes not detected.