| 摘要 |
PURPOSE: To extract pure essence of Houttuynia cordata so as not to destroy a decanoylacetaldehyde component contained in Houttuynia cordata. CONSTITUTION: This pure essence of Houttuynia cordata is obtained by passing through a process for picking Houttuynia cordata in a flowering season, washing, pressing and extracting its essence, a process for freezing the extracted solution, removing a misty frozen substance of supernatant liquid and taking out the residual solution and a process for allowing the residual solution to stand and keeping it at a normal temperature of 15-25 deg.C and removing precipitate. |
