Table 1.
Chemical composition of the essential oil from the flowers of Monarda punctata
| S. No | RT | Compound | % Peak area | Methods of identification |
|---|---|---|---|---|
| 1 | α-Thujene | 1.0 | MS, RI | |
| 2 | α-Pinene | 0.2 | MS, RI | |
| 3 | β-Pinene | 0.9 | MS, RI | |
| 4 | α-Phellandrene | 0.1 | MS, RI | |
| 5 | α-Terpinene | 1.5 | MS, RI | |
| 6 | P-Cymene | 6.7 | MS, RI, Std | |
| 7 | Carene | 0.2 | MS, RI | |
| 8 | Limonene | 5.4 | MS, RI, Std | |
| 9 | 4-Terpineol | 0.1 | MS, RI | |
| 10 | Methyl carvacrol | 0.4 | MS, RI | |
| 11 | Thymol | 75.2 | MS, RI, Std | |
| 12 | Carvacrol | 3.5 | MS, RI, Std | |
| 13 | β-Caryophyllene | 0.1 | MS, RI | |
| Total (%) | 95.3 | |||
| Monoterpene hydrocarbons | 16.0 | |||
| Oxygenated monoterpenes | 79.2 | |||
| Sesquiterpene hydrocarbons | 0.1 | |||
| Oxygenated sesquiterpenes | nil | |||