| abstract |
The plant material is first subjected to a first extraction with a liquefied or supercritical gas. preferably subjected to CO 2 , N 2 0 and the extracts in the separating container of the plant deposited directly on a powder or granular carrier material. The residue from the gas extraction is subjected to a second extraction with water, ethanol or aqueous ethanol. After the extracts obtained have been dried, preferably by spray drying, they are mixed together. |