Table 1.
Chemical composition of Asarum heterotropoides oil, expressed as chromatographic area percentages obtained by supercritical CO2 at different extraction conditions, P (bar)/T (°C).
| Components | Concentration (%) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||
| SC-CO2 extraction | SC-CO2 with ethanol extraction | |||||||||
|
|
|
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| Conditions (bar/°C) | ||||||||||
|
| ||||||||||
| 300/50 | 250/50 | 200/50 | 200/45 | 200/55 | 300/50 | 250/50 | 200/50 | 200/45 | 200/55 | |
| Eucarvone | 0.7 | 0.8 | 0.8 | 0.8 | 0.9 | 0.6 | 0.7 | 0.6 | 0.7 | 0.8 |
| 3,5-Dimethoxytoluene | 5.6 | 6.5 | 12.8 | 5.5 | 7.1 | 3.6 | 4.5 | 4.7 | 6.2 | 4.8 |
| Safrole | 9.1 | 9.8 | 11.3 | 8.6 | 11.2 | 8.6 | 9.4 | 9.2 | 9.2 | 10.9 |
| Methyl eugenol | 35.4 | 36.9 | 36.8 | 35.8 | 36.5 | 35.8 | 37.6 | 37.6 | 36.1 | 37.2 |
| Myristicin | 1 | 1.2 | 0.7 | 1.2 | 1.9 | 1 | 1.5 | 1.3 | 1 | 1.1 |
| Pentadecane | 4.2 | 3.8 | 4 | 5.3 | 7.1 | 5.1 | 5.6 | 5.1 | 4.6 | 4.3 |
| Trans-isocroweacin | 5.5 | 5.4 | 7.3 | 2.5 | 4.6 | 3 | 3.5 | 3.7 | 5.1 | 5.8 |
| 3,4-Benzocyclodec-3-ene-1,5-diyn-7-one | 3 | 2.8 | 2.3 | 3.4 | 2.6 | 2.8 | 3.1 | 3.5 | 2.6 | 2.9 |
| 4,6-Dimethoxy-5-methyl phthalide | 2.3 | 2.3 | 1.7 | 2.5 | 2.2 | 2 | 2.5 | 2.7 | 2.1 | 2.3 |
| Linoleic acid | 3.2 | 2.5 | 1.8 | 4 | 1.4 | 2 | 2 | 1.9 | 1.6 | 3.9 |
| N-Isobutyl-(2E,4Z,8Z,10E)-dodecatetraenamide | 8.6 | 6.3 | 6.2 | 8.8 | 5.2 | 9.6 | 8.7 | 9 | 7.9 | 11.3 |
| N-Isobutyl-(2E,4Z,8Z,10E)-dodecatetraenamide | 3.5 | 3.1 | 2 | 3.8 | 2.3 | 3.7 | 4.1 | 4.1 | 4.1 | 3.7 |
| Sesamin | 18 | 18.7 | 12.4 | 17.8 | 17 | 22.1 | 17. | 16.7 | 19.1 | 11.1 |
SC = supercritical.