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Table 1 Percentage composition of EOs by sHS-SPME-GC-MS analysis

From: Antibacterial activity evaluation of selected essential oils in liquid and vapor phase on respiratory tract pathogens

Component RI Percentage of compounds (%)
1 2 3 4 5 6 7
α-Pinene 939 1.1 1.0 5.7 1.4 26.1
Camphene 951 2.2 7.9
β-Pinene 978 1.0 18.0
β-Myrcene 992 1.7 1.9
α-Phellandrene 1007 1.2
α-Terpinene 1017 1.9
p-Cymene 1026 27.9 6.1 3.2
δ-3-Carene 1031 14.4
Limonene 1044 12.8 8.2 17.0
1,8-Cineole 1046 17.4 3.7 11.1 91.0
γ-Terpinene 1060 6.5 4.4 3.2
Terpinolene 1093        3.3
Linalool 1104 1.0 3.5 6.7
Isopulegol 1150 1.1 1.0
Citronellal 1153 42.3
Menthone 1156 19.8
Isomenthone 1159 11.6
Anethole 1171 3.3
Menthol 1172 27.2
Isomenthol 1183 3.7
α-Terpineol 1190     2.2 1.3
Pulegone 1215 1.9
Citronellol 1226 8.9
Nerol 1230 12.9
trans-Cinnamaldehyde 1266 45.9
Bornyl acetate 1289 4.2
Thymol 1297 46.1
Isomenthyl acetate 1305 6.6
Citronellyl acetate 1353 4.6
Neryl acetate 1365 3.5
Eugenol 1373 66.9 1.4
β-Elemene 1394 3.0
β-Caryophyllene 1417 1.3 2.3 26.5 5.0
Cinnamyl acetate 1446 1.9
α-Humulene 1452 6.0
β-Cadinene 1473 2.6
β-Muurolene 1493 1.5
Total:   93.4 94.1 97.0 99.4 98.5 98.0 98.6
  1. Table 1 shows the average content of volatile compounds which occurred in the EOs in more than 1% from 3 parallel measurements. The standard deviations (SD) were below 4.5%. 1. peppermint, 2. citronella, 3. thyme, 4. clove, 5. cinnamon bark, 6. eucalyptus, 7. scots pine. RI: Retention Index based on a homologous series of normal alkanes.