| 1 | Conclusion The optimization of the extraction process of galangin from Alpinia is optimized. | |
| 2 | Cinnamon oil, Eugenia oil and Galangal oil can be used to enhance the percutaneous absorption of benzoic acid. | |
| 3 | Results Galangin was obtained by on-step column chromatography of polyamide only once. | |
| 4 | Supercritical CO2 extraction technology was applied to extract the spice substance from Alpinia galanga . | |
| 5 | Results Galangin was obtained by on-step column chromatography of polyamide only once. |