Table 2.
Comparison of major constituents of C. rotundus rhizomes oils from different countries.
| Oil percentage composition | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Constituents | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| α-pinene | - | - | - | - | - | - | - | - | - | (3.0-10.8) |
| β-pinene | - | - | - | - | - | - | - | - | - | (5.3-11.3) |
| α-copaene | - | - | - | - | - | - | (11.4-12.1) | - | - | - |
| cyperene | - | 30.8 | 7.2 | 28.7 | 20.7 | - | (8.4-11.1) | 19.2 | (20.4-30.9) | (1.6-2.6) |
| β-selinene | 18.3 | - | 17.8 | - | - | - | - | - | - | (4.6-5.1) |
| cyperotundone | - | 13.1 | 19.4 | 8.8 | 25.0 | 12.1 | -- | - | 8.8 | - |
| α-cyperone | 38.6 | - | 30.7 | - | - | 22.8 | - | 17.7 | (4.5 – 25.2) | (7.9-11.0) |
| valerenal | - | - | - | - | - | - | (8.7-9.8) | - | - | - |
| caryophyllene oxide | - | - | - | - | - | - | (7.8-9.7) | - | - | (2.6-5.4) |
| petchoulenyl acetate | - | - | - | 8.0 | - | - | - | - | - | - |
| sugeonyl acetate | - | - | - | 8.9 | - | - | - | - | - | - |