Table 1 Volatile components identified from Citrus aurantium leaves essential oil
No. | Rt (min.) | Component | KI | Molecular formula | % Composition | |||||
|---|---|---|---|---|---|---|---|---|---|---|
Calculated | Reported | Steam distilled (SD) | Hydrodistilled (HD) | Microwave-assisted (MV) | ||||||
1. | 6.904 | β-Thujene | 922 | 920 | C10H16 | 0.21 | 0 | 0 | ||
2. | 7.088 | α-Pinene | 929 | 931 | C10H16 | 2.70 | 0 | 0 | ||
3. | 7.505 | Camphene | 943 | 945 | C10H16 | 0.11 | 1.32 | 0 | ||
4. | 8.269 | 4(10)-Thujene | 969 | 971 | C10H16 | 4.02 | 0 | 0 | ||
5. | 8.346 | β-Pinene | 971 | 977 | C10H16 | 2.29 | 1.37 | 1.36 | ||
6. | 8.766 | 2,3-Dehydro-1,8-cineole | 986 | 986 | C10H16O | 0.24 | 0 | 0 | ||
7. | 9.835 | β-Myrcene | 987 | 987 | C10H16 | 0.15 | 1.33 | 1.29 | ||
8. | 9.571 | α-Terpinene | 1012 | 1017 | C10H16 | 0.14 | 0 | 0 | ||
9. | 9.835 | p-Cymene | 1021 | 1025 | C10H14 | 0.57 | 0 | 0 | ||
10. | 10.063 | Eucalyptol | 1028 | 1031 | C10H18O | 69.92 | 0 | 0 | ||
11. | 10.563 | β-Ocimene | 1044 | 1046 | C10H16 | 0 | 0 | 1.38 | ||
12. | 10.881 | γ-Terpinene | 1055 | 1056 | C10H16 | 0.29 | 0 | 0 | ||
13. | 11.123 | trans-4-Thujanol | 1062 | 1064 | C10H18O | 0.73 | 0 | 0 | ||
14. | 12.155 | Linalool | 1096 | 1098 | C10H18O | 0.85 | 24.04 | 23.69 | ||
15. | 13.345 | cis-Pinocarveol | 1135 | 1139 | C10H16O | 0.15 | 0 | 0 | ||
16. | 14.076 | cis-Dihydro-β-Terpineol | 1159 | 1160 | C10H18O | 0.14 | 0 | 0 | ||
17. | 14.221 | 6-Terpineol | 1163 | 1166 | C10H18O | 0.29 | 0 | 0 | ||
18. | 14.536 | Terpinen-4-ol | 1174 | 1177 | C10H18O | 1.52 | 0 | 0 | ||
19. | 14.951 | α-Terpineol | 1187 | 1189 | C10H18O | 1.63 | 5.14 | 7.82 | ||
20. | 15.123 | (1R)-(-)-Myrtenal | 1193 | 1192 | C10H14O | 0.25 | 0 | 0 | ||
21. | 16.880 | Linalool acetate | 1253 | 1257 | C12H20O | 0 | 64.08 | 57.13 | ||
22. | 17.753 | Isobornyl acetate | 1282 | 1288 | C12H20O | 0.18 | 0 | 0 | ||
23. | 18.638 | δ-Terpineol, acetate | 1314 | 1316 | C12H20O | 0.43 | 0 | 0 | ||
24. | 19.339 | cis-2-acetoxy-1,8-cineole | 1339 | 1341 | C12H20O | 0.22 | 0 | 0 | ||
25. | 19.570 | α-Terpinyl acetate | 1347 | 1349 | C12H20O | 9.86 | 0 | 0 | ||
26. | 19.819 | 3-Allylguaiacol; 3-Allyl-2-methoxyphenol | 1356 | 1362 | C12H20O | 0.59 | 0 | 0 | ||
27. | 19.925 | Geranyl acetate | 1360 | 1366 | C12H20O2 | 0 | 2.70 | 7.31 | ||
28. | 20.738 | β-Elemene | 1389 | 1389 | C15H24 | 0.28 | 0 | 0 | ||
29. | 21.079 | Methyl eugenol | 1402 | 1403 | C11H14O | 0.75 | 0 | 0 | ||
30. | 21.503 | Caryophyllene | 1418 | 1420 | C15H24 | 0.18 | 0 | 0 | ||
31. | 23.279 | α-Selinene | 1486 | 1488 | C15H24 | 0.11 | 0 | 0 | ||
32. | 25.594 | Spatulenol | 1578 | 1578 | C15H24O | 0.20 | 0 | 0 | ||
33. | 25.735 | Caryophyllene oxide | 1584 | 1583 | C15H24O | 0.46 | 0 | 0 | ||
34. | 27.355 | Eudesm-4(14)-en-11-ol | 1652 | 1651 | C15H26O | 0.36 | 0 | 0 | ||
35. | 34.860 | Dehydrocostuslactone | 2000 | 2006 | C15H20O | 0.15 | 0 | 0 | ||
% Composition | 99.97% (32 cpd) | 99.98% (7 cpd) | 99.98% (7 cpd) | |||||||
Monoterpene HCS | 9 | 3 | 3 | |||||||
Oxygenated monoterpene HCS | 16 | 4 | 4 | |||||||
Sesquiterpene HCs | 3 | 0 | 0 | |||||||
Oxygenated sesquiterpene HCs | 4 | 0 | 0 | |||||||