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Supercritical CO2 extraction of natural pigments

Supercritical CO2 fluid extraction technology has been applied to the extraction and refining of natural food pigments such as capsanthin, lycopene, β-carotene and gardenia yellow.

Compared with the traditional organic reagent method, the natural pigment produced by supercritical CO2 extraction technology has no solvent residues and no pollution, which can avoid the thermal degradation of the extract at high temperatures, protect the activity of physiologically active substances, and maintain the natural flavor of the extract .