Abstract: Super critical fluid extraction is using super critical fluid as extreacting solvent. The super critical carbon diox-ied extraction has the advantages of low temperature treatment, effectively extracting volatility substance, no oxidating deterioration . harmless to the health , stability and safety. Super critical fluid extraction in food industry is mainly used in extractions of essence , perfume , pigment oil , decolor deodorization , and also used in de - fat of food materials , degreassing caffeine, separating oil mixture and purification.

Key words: Super critical fluid Extraction Food industry