Table 1. Identification of Volatile Compounds Emitted by the Flowers of T. xiphioides.
| # | family | compound | RIa | m/z | retention time (min) | identificationb |
|---|---|---|---|---|---|---|
| 1 | monoterpene | α-thujene* | 919.04 | 136.1 | 14.15 | MS + RI |
| 2 | monoterpene | α-pinene* | 927.24 | 136.1 | 14.46 | MS, RI and STD |
| 3 | monoterpene | sabinene* | 969.04 | 136.1 | 16.05 | MS, RI and STD |
| 4 | monoterpene | β-phellandrene* | 973.81 | 136.1 | 16.23 | MS + RI |
| 5 | monoterpene | β-pinene* | 979.87 | 136.1 | 16.46 | MS, RI and STD |
| 6 | monoterpene | β-myrcene* | 988.09 | 136.1 | 16.78 | MS, RI and STD |
| 7 | monoterpene | α-phellandrene* | 1007.47 | 136.1 | 17.51 | MS + RI |
| 8 | monoterpene | limonene* | 1033.5 | 136.1 | 18.52 | MS, RI and STD |
| 9 | monoterpene | eucalyptol* | 1036.85 | 154.1 | 18.66 | MS, RI and STD |
| 10 | monoterpene | β-ocimene* | 1045.1 | 136.1 | 18.98 | MS, RI and STD |
| 11 | monoterpene | γ-terpinene* | 1058.76 | 136.1 | 19.5 | MS, RI and STD |
| 12 | monoterpene | terpinolene* | 1086.34 | 136.1 | 20.57 | MS + RI |
| 13 | monoterpene | β-linalool* | 1097.68 | 154.1 | 21.02 | MS, RI and STD |
| 14 | monoterpene | α-terpineol* | 1196.01 | 154.1 | 24.71 | MS, RI and STD |
| 15 | monoterpene | geraniol* | 1249.72 | 154.1 | 26.64 | MS, RI and STD |
| 16 | monoterpene | methyl geranate+ | 1320.56 | 182.1 | 29.02 | MS + RI |
| 17 | monoterpene | geranyl acetate+ | 1378.72 | 196.1 | 30.59 | MS, RI and STD |
| 18 | monoterpene | geranyl butyrate+ | 1556.43 | 224 | 34.75 | MS + RI |
| 19 | monoterpene | geranyl tiglate+ | 1695.1 | 236 | 37.39 | MS + RI |
| 20 | monoterpene | geranyl hexanoate+ | 1748.19 | 252 | 38.27 | MS + RI |
| 21 | sesquiterpene | α-bergamotene+ | 1439.14 | 204.2 | 32.16 | MS + RI |
| 22 | sesquiterpene | β-farnesene+ | 1454.04 | 204.2 | 32.55 | MS + RI |
| 23 | sesquiterpene | α-farnesene+ | 1503.96 | 204.2 | 33.69 | MS + RI |
| 24 | sesquiterpene | β-bisabolene+ | 1512.37 | 204.2 | 33.86 | MS + RI |
| 25 | sesquiterpene | α-bisabolene+ | 1544.55 | 204.2 | 34.52 | MS + RI |
| 26 | sesquiterpene | nerolidol+ | 1567.82 | 222.2 | 34.98 | MS, RI and STD |
| 27 | sesquiterpene | denderalasin+ | 1577.22 | 218.2 | 35.17 | MS + RI |
| 28 | sesquiterpene | α-patchoulene+ | 1595.54 | 204.2 | 35.55 | MS + RI |
| 29 | other | indole+ | 1296.08 | 117.1 | 28.22 | MS + RI |
| 30 | other | methyl palmitate+ | 268.2 | 41.14 | MS |
a
Retention Index using a DB-5MS capillary column.
b
MS = by comparison of the mass spectrum with the NIST library. RI = by comparison of RI (retention index) with RI of published literatures and online library (https://webbook.nist.gov/chemistry/cas-ser.html). STD = by comparison of retention time and mass spectrum of the authentic standard. * = efficient extraction with the first method, low values of temperature and extraction time (30 °C and 20 min). + = efficient extraction with the second method, high values of temperature and extraction time (75 °C and 65 min).