| 摘要 |
PURPOSE:To obtain chrysanthemum extract with perfume or flavor unique in chrysanthemum plant, by extraction treatment of a chrysanthemum plant with carbon dioxide under the supercritical conditions. CONSTITUTION:The flower or leaf section of a chrysanthemum plant in either intact or cut state is put in an extraction tank 1, being extracted with carbon dioxide under the supercritical conditions (i.e., at 31-50 deg.C under 80-200kg/cm<2> G). The resulting carbon dioxide in which the perfume components have been dissolved is fed to a pressure control valve 2 from the extraction tank 1 followed by pressure reduction to decrease the solubility, and then separation of the extract in a separation column 3. The gaseous carbon dioxide separated is condensed again, being transmitted to a liquid carbon dioxide tank 5 for reuse. The extract is taken out from the separation column 3. |
