Extraction
of solid matrixes is the most common use of supercritical CO2. The great classics are extraction of caffeine from coffee or extraction of bitter molecules from hops, and also the extraction of essential oils from perfume plants.Fractionation of liquid products is carried out continuously in columns. The fractionation of vegetable or marine oils or aromas are just some examples...Purification covers several applications including desolvation, decolouration, deodorisation and elimination of undesirable compounds such as pesticides or chemical residues.Extraction-formulation
with liquid or solid excipients is a derivative application frequently used in phytotherapy and cosmetics.
It is also possible to combine these processes for one single product: for example deodorisation followed by an extraction stage.
