Table 1.
Chromatographic profiles of essential oil of M. piperita specified by international standards.
| Component | Specified Components [%] | |||
|---|---|---|---|---|
| [81] | Ph. Eur. [53] | WHO [83] | ||
| Non-US Origin | US Origin | |||
| menthol | 32.0–49.0 | 36.0–46.0 | 30.0–55.0 | 30.0–55.0 |
| menthone | 13.0–28.0 | 15.0–25.0 | 14.0–32.0 | 14.0–32.0 |
| isomenthone | 2.0–8.0 | 2.0–4.5 | 1.5–10.0 | 2.0–10 |
| menthyl acetate | 2.0–8.0 | 3.0–6.5 | 2.8–10.0 | 3.0–5.0 |
| eucalyptol (1,8-cineole) | 3.0–8.0 | 4.0–6.0 | 3.5–8.0 | 6.0–14.0 |
| menthofuran | 1.0–8.0 | 1.5–6.0 | 1.0–8.0 | 1.0–9.0 |
| neomenthol | 2.0–6.0 | 2.5–4.5 | ||
| limonene | 1.0–3.0 | 1.0–2.5 | 1.0–3.5 | 1.0–5.0 |
| trans-sabinene hydrate | 0.5–2.0 | 0.5–2.3 | ||
| pulegone | 0.5–3.0 | 0.5–2.5 | 0–3.0 | 0–4.0 |
| β-caryophyllene | 1.0–3.5 | 1.0–2.5 | ||
| 3-octanol | 0.1–0.5 | 0.1–0.4 | ||
| carvone | 0–1.0 | 0–1.0 | ||
| 1,8-cineole/limonene ratio | >2.0 | |||