TABLE 1.
Chemical composition (%) of essential oils from Oliveria decumbens (ODEO), Trachyspermum ammi (TAEO), Thymus kotschyanus (TKEO), and Zataria multiflora (ZMEO)
| Compounds | Formula | RT | RI | ODEO | TAEO | TKEO | ZMEO |
|---|---|---|---|---|---|---|---|
| alpha‐Thujene | C10H16 | 3.44 | 924 | 0.00 | 0.00 | 1.03 | 0.00 |
| alpha‐Pinene | C10H16 | 4.80 | 931 | 0.13 | 0.00 | 0.69 | 0.00 |
| Sabinene | C10H16 | 5.85 | 958 | 1.53 | 0.00 | 0.00 | 0.00 |
| beta‐Pinene | C10H16 | 6.19 | 975 | 0.21 | 0.21 | 1.03 | 0.00 |
| beta‐Myrcene | C10H16 | 6.19 | 990 | 0.00 | 0.00 | 1.03 | 0.00 |
| alpha‐Terpinene | C10H16 | 6.94 | 1,015 | 0.22 | 0.00 | 4.76 | 1.06 |
| para‐Cymene | C10H14 | 7.20 | 1,023 | 5.04 | 5.21 | 3.38 | 3.24 |
| Limonene | C10H16 | 7.32 | 1,026 | 1.16 | 0.00 | 2.20 | 0.00 |
| gamma‐Terpinene | C10H16 | 8.29 | 1,056 | 12.72 | 3.64 | 0.00 | 1.23 |
| Linalool | C10H18O | 9.80 | 1,098 | 0.00 | 0.00 | 6.41 | 0.00 |
| Borneol | C10H18O | 12.29 | 1,164 | 0.00 | 0.00 | 1.49 | 0.00 |
| Terpinen‐4‐ol | C10H18O | 12.75 | 1,175 | 0.00 | 0.00 | 4.63 | 0.00 |
| Citronellol | C10H20O | 8.61 | 1,189 | 0.00 | 0.00 | 4.81 | 0.00 |
| Thymol methyl ether | C11H16O | 15.46 | 1,232 | 0.00 | 0.00 | 2.62 | 1.25 |
| Carvone | C10H14O | 15.70 | 1,243 | 0.00 | 0.40 | 0.00 | 0.00 |
| Geraniol | C10H18O | 16.77 | 1,253 | 0.00 | 0.00 | 14.55 | 0.00 |
| Thymol | C10H14O | 17.85 | 1,292 | 37.77 | 86.41 | 1.18 | 14.95 |
| Carvacrol | C10H14O | 18.49 | 1,311 | 40.38 | 3.14 | 43.39 | 52.36 |
| Spathulenol | C15H24O | 20.25 | 1,352 | 0.00 | 0.00 | 0.00 | 13.61 |
| Globulol | C15H26O | 20.58 | 1,370 | 0.00 | 0.00 | 0.00 | 1.47 |
| Caryophyllene | C15H24 | 22.64 | 1,417 | 0.00 | 0.00 | 4.96 | 3.29 |
| Isospathulenol | C15H24O | 25.85 | 1,437 | 0.00 | 0.00 | 1.01 | 0.92 |
| Aromadendrene epoxide | C15H24O | 28.27 | 1,506 | 0.00 | 0.00 | 0.00 | 1.29 |
| Caryophyllene oxide | C15H24O | 29.09 | 1,580 | 0.00 | 0.00 | 0.00 | 4.37 |
| Total | 99.34 | 99.55 | 99.76 | 99.80 | |||
| Monoterpenes | 21.01 | 9.05 | 14.12 | 5.53 | |||
| Monoterpenoids | 78.15 | 89.95 | 79.09 | 68.57 | |||
| Sesquiterpenes | 0.00 | 0.00 | 4.96 | 3.29 | |||
| Sesquiterpenoids | 0.00 | 0.00 | 1.01 | 21.67 |
The essential oils were identified by the GC‐MS software by comparing the retention times and fragmentation patterns of the related peaks with those reported in the libraries of Wily and NIST.