1. Concentration

The leach Capsicum Oleoresin is fed into the distillation unit and the ethanol is recovered by indirect heating. With the evaporation of ethanol, the Acerola Cherry Extract and color of the extract increased. In the later stage of distillation, the heating temperature should be controlled to prevent coking. When the Ginkgo Biloba Extract is cooled to room temperature, it is a thick dark red liquid. The recovered ethanol can be used for leaching.

1. Purification

In order to remove the Mixed Tocopherols Oil and colloidal resin substances in the concentrate, further solvent extraction is needed, under the conditions as mentioned above. Then evaporate the purified solvent to obtain the pure extract - capsicum essence.