Table 1.
Chemical composition of lemongrass essential oil. Ri, retention indices; Rt, retention time; MC, mean composition (% area); MM, molecular mass; m/z, mass/charge ratio; ID, identification methods; KI, Kovats retention index on a DB-5 column and compared from the literature [39,40,41]; MS, mass spectra.
| Peaks | Component | Ri | Rt | MC | MM | m/z | ID |
|---|---|---|---|---|---|---|---|
| 1 | 6-methylhept-5-en-2-one | 938 | 8.91 | 1.796 | 128 | 121.1 | KI [39,40], MS |
| 2 | Camphene | 958 | 10.8 | 4.709 | 130 | 108.1 | KI [39,41], MS |
| 3 | Limonene | 1030 | 12.4 | 7.552 | 136 | 94.1 | KI [39,40], MS |
| 4 | Nonan-4-ol | 1052 | 14.7 | 3.194 | 142 | 86.1 | KI [39,41], MS |
| 5 | Citronellal | 1125 | 18.5 | 3.213 | 154 | 121.1 | KI [39,40,41], MS |
| 6 | Citronellol | 1136 | 19.8 | 2.245 | 156 | 109.1 | KI [39,40,41], MS |
| 7 | Neral | 1174 | 22.1 | 24.65 | 156 | 95.1 | KI [39,40,41], MS |
| 8 | Geranial | 1179 | 22.5 | 12.36 | 152 | 109.1 | KI [39,40,41], MS |
| 9 | Citral | 1228 | 23.2 | 18.71 | 154 | 123.1 | KI [39,40,41], MS |
| 10 | Geranyl acetate | 1274 | 23.8 | 12.49 | 196 | 137.1 | KI [39,40], MS |
| 11 | β-caryophyllene | 1352 | 28.8 | 2.586 | 204 | 136.1 | KI [39,40], MS |
| 12 | γ-muurolene | 1435 | 29.9 | 1.706 | 204 | 133.1 | KI [39,40], MS |
| 13 | Caryophyllene oxide | 1494 | 33.8 | 1.893 | 220 | 204.1 | KI [39,40], MS |