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Table 1 Chemical composition (%) of LEOs extracted by hydrodistillation (HD) and ultrasound-assisted microextraction (UAME)

From: Rapid determination of S-(+)-linalool in leaf of Cinnamomum osmophloeum ct. linalool using ultrasound-assisted microextraction

AIa

rAIb

Compound

HD-EO

UAME-EO

Identification methodc

932

932

α-Pinene

0.2 ± 0.0

 

AI, MS, ST

988

988

β-Myrcene

0.1 ± 0.0

0.2 ± 0.0

AI, MS

1028

1024

Limonene

0.3 ± 0.0

 

AI, MS

1034

1032

cis-β-Ocimene

0.1 ± 0.0

0.2 ± 0.0

AI, MS

1044

1044

trans-β-Ocimene

 

0.2 ± 0.0

AI, MS

1085

1084

trans-Linalool oxide (furanoid)

0.1 ± 0.0

0.3 ± 0.0

AI, MS

1100

1095

S-(+)-Linalool

97.8 ± 0.1

70.4 ± 0.6

AI, MS, ST

1194

1186

α-Terpineol

0.1 ± 0.0

 

AI, MS

1197

1195

4-Allylanisole

0.2 ± 0.0

0.2 ± 0.0

AI, MS

1270

1267

trans-Cinnamaldehyde

0.9 ± 0.2

2.2 ± 0.4

AI, MS, ST

1429

1432

Coumarin

 

26.1 ± 0.4

AI, MS, ST

  

Monoterpenes hydrocarbons (%)

0.7

0.6

 
  

Oxygenated monoterpenes (%)

98.0

70.7

 
  

Other (%)

1.1

28.5

 
  

Total identified (%)

99.8

99.8

 
  1. Data were presented as mean ± SD (n = 3)
  2. aArithmetic index
  3. bReference arithmetic index
  4. cCompound identified by arithmetic index (AI), mass spectrum (MS), and standard compound (ST)