The predominant constituent was β-caryophyllene (27.4%) (Table 1). Minor sesquiterpene hydrocarbons in 3.01–6.59% yield like cycloisosativene, α-copaene, trans-α-bergamotene, β-farnesene, germacrene D, bicyclogermacrene, α-humulene, and δ-cadinene occurred in C. punctatum oil. Among the oxygenated sesquiterpenes, spathulenol (1.26%), viridiflorol (2.12%), and caryophyllene oxide (2.42%) formed the notable constituents.
| Serial No. | Biological Activity Name |
|---|---|
| 1 | Antioxidant |
| 2 | Anti-microbial |
1. Gbolade, Adebayo A., et al. "Essential oil composition of Centratherum punctatum from Nigeria." Chemistry of natural compounds 45.1 (2009): 118-119.
2. Pawar, NAVEEN KUMAR, and N. E. E. L. A. K. A. N. T. A. N. Arumugam. "Leaf extract of Centratherum punctatum exhibits antimicrobial, antioxidant and anti proliferative properties." Asian j pharm clin res 4.3 (2011): 71-76.
| Serial No. | Compound Name | Compound Percentage(%) |
|---|---|---|
| 1 | Beta-Caryophyllene | 27.40 |
| Serial No. | Compound Name | Compound Percentage(%) |
|---|---|---|
| 1 | D-Cadinene | 6.59 |
| 2 | A-Humulene | 6.95 |
| 3 | Germacrene D | 5.93 |
| 4 | Alpha-Copaene | 5.03 |
| 5 | Bicyclogermacrene | 4.63 |
| 6 | (E)-Beta-Farnesene | 3.90 |
| 7 | Trans-Alpha-Bergamotene | 3.87 |
| 8 | Caryophyllene Oxide | 2.42 |
| 9 | Gamma-Muurolene | 2.20 |
| 10 | Viridiflorol | 2.12 |
| 11 | Beta-Curcumene | 1.03 |
| 12 | Beta-Elemene | 1.32 |
| 13 | Delta-Elemene | 1.68 |
| 14 | Delta-Selinene | 1.90 |
| 15 | 1-Epi-Cubenol | 1.76 |
| 16 | Spathulenol | 1.26 |
| 17 | Allo-Aromadendrene | 1.22 |
| 18 | Beta-Bourbonene | 1.28 |