Table III.
Chemical composition of the essential oil of Cyperus longus from North Khorasan, Iran.
| No. | Compound name | Area % | RI | Type of compound |
|---|---|---|---|---|
| 1 | Linalool | 0.15 | 1,000.423 | Monoterpene oxygenated |
| 2 | cis-Dihydrocarvone | 0.22 | 1,100.42 | Monoterpene oxygenated |
| 3 | trans-Dihydrocarvone | 0.12 | 1,100.50 | Monoterpene oxygenated |
| 4 | α-Cubebene | 0.23 | 1,200.90 | Sesquiterpene |
| 5 | α-Copaene | 2.35 | 1,300.21 | Sesquiterpene |
| 6 | β-Elemene | 0.05 | 1,300.25 | Sesquiterpene |
| 7 | Germacrene-D | 0.61 | 1,300.33 | Sesquiterpene |
| 8 | Megastigmatrienone | 0.06 | 1,300.37 | Monoterpene oxygenated |
| 9 | α-Gurjunene | 0.56 | 1,300.49 | Sesquiterpene |
| 10 | α-Guaiene | 0.71 | 1,300.79 | Sesquiterpene |
| 11 | α-Humulene | 1 | 1,300.99 | Sesquiterpene |
| 12 | α-Amorphene | 1.16 | 1,400.18 | Sesquiterpene |
| 13 | Spathulenol | 0.97 | 1,400.41 | Sesquiterpene oxygenated |
| 14 | δ-Guaiene | 1.27 | 1,400.48 | Sesquiterpene |
| 15 | Torreyol | 1.61 | 1,400.59 | Sesquiterpene oxygenated |
| 16 | 9-methyl-10-methylenetricyclo[4,2,1,1]decane-9-ol | 1.65 | 1,400.87 | Monoterpene oxygenated |
| 17 | β-Himachalene | 10.81 | 1,500.02 | Sesquiterpene |
| 18 | γ-Gurjunenepoxide | 1.4 | 1,500.11 | Sesquiterpene oxygenated |
| 19 | α-Caryophyllene oxide | 7.6 | 1,500.22 | Sesquiterpene oxygenated |
| 20 | Irisone | 4.78 | 1,500.30 | Monoterpene oxygenated |
| 21 | β-Caryophyllene oxide | 4.36 | 1,500.35 | Sesquiterpene oxygenated |
| 22 | Humulene oxide | 12 | 1,500.65 | Sesquiterpene oxygenated |
| 23 | Retinol-acetate | 1.58 | 1,500.73 | Diterpene oxygenated |
| 24 | Limonene-1,2-epoxide | 2.15 | 1,500.80 | Monoterpene oxygenated |
| 25 | Viridiflorol | 4.73 | 1,600.02 | Sesquiterpene oxygenated |
| 26 | α-Himachalene | 2.14 | 1,600.18 | Sesquiterpene |
| 27 | Longiverbenone | 6.04 | 1,600.29 | Sesquiterpene oxygenated |
| 28 | Aristolone | 6.39 | 1,600.57 | Sesquiterpene oxygenated |
| 29 | Cembrene | 1.71 | 1,600.67 | Diterpene |
| 30 | Viridiflorol | 0.79 | 1,600.75 | Sesquiterpene oxygenated |
| 31 | Aromadendrenepoxide | 1.1 | 1,600.92 | Sesquiterpene oxygenated |
| 32 | 17-Acetoxy-19-kauranal | 3.1 | 1,800.64 | Diterpene oxygenated |
| Total compounds | 83.24 | |||
| Monoterpene oxygenated | 9.13 | |||
| Sesquiterpene | 20.89 | |||
| Sesquiterpene oxygenated | 46.83 | |||
| Diterpene | 1.71 | |||
| Diterpene oxygenated | 4.68 |
Retention index (RI) relative to the n-alkanes on the DB-5 MS capillary column. MS, identified on the basis of a comparison with MS data spectra.