CO2 supercritical extraction equipment
The characteristics of CO2 supercritical extraction technology make supercritical fluid a good extractant. Supercritical fluid extraction is a process that uses the strong solubility of supercritical fluid to extract various effective components from slaves and plants, and then release them by changing process parameters. The principle of supercritical CO2 fluid extraction (SFE) separation process is based on the relationship between the solubility of supercritical CO2 fluid and its density, that is, the influence of pressure and temperature on the solubility of supercritical CO2 fluid. In the supercritical state, the supercritical CO2 fluid is contacted with the substance to be separated to selectively extract the components of polarity, boiling point and molecular weight in turn. Of course, the extract obtained corresponding to each pressure range cannot be single, but the conditions can be controlled to obtain the best proportion of mixed components, and then the supercritical CO2 fluid can be turned into gas by means of decompression and heating, and the extracted substances can be completely or basically precipitated, so as to achieve the purpose of separation and purification, Therefore, supercritical CO2 fluid extraction process is a combination of extraction and separation processes.
Characteristics of supercritical CO2 extraction:
1, low critical temperature, suitable for the extraction and purification of thermosensitive compounds;
2, can provide an indolent environment, avoiding product oxidation, without affecting the active ingredients of the extract;
3, extraction is rapid, nontoxic, nonflammable, safe to use, and does not contaminate the environment;
4, no solvent residue, no nitrate and heavy metal ions;
Supercritical CO2 fluid extraction method is a physical separation and purification process in which CO2 is recycled.In addition to being an alternative to traditional solvent based separations, this technique can address the separation of biomacromolecules, thermosensitive and chemically labile substances, and thus has received considerable attention in food, medicine, spices, and chemicals.
CO2 supercritical extraction
Main areas of application:
The characteristics of supercritical CO2 extraction determine its wide range of applications.
As in the pharmaceutical industry, it can be used for the extraction of phytoactive ingredients, the refinement of thermosensitive bioproduct drugs, and the separation of lipid class mixtures;
In the food industry, the extraction of hop, the extraction of capsaicin, etc;
In the fragrance industry, the elaboration of natural and synthetic flavors;
In the chemical industry, the separation of mixtures, etc.
Specific applications can be divided into the following:
Extraction of phyto active ingredients: extraction, refinement of plant volatile oil, industrial cannabinoid oil, active fraction of Lonicera japonica, essential oil of mudflower, essential oil of rosette, ginkgo flavonoids, taxol, kobresin, Glycyrrhiza glabra, etc;
Food additives: coffee decaffeinated;Pepper red pigment, black currant seed oil, hop dip
Advanced nutraceutical bond preservation products: the extraction of acanthosed, bicuculline, natural VE, lecithin, natural fish oil, wheat germ oil, corn germ oil, allicin, a-linolenic acid, tea polyphenols, etc.
Extraction and elaboration of fragrances and flavors.
Environmental protection: wastewater treatment by supercritical water oxidation.
Main areas of application
Rose essential oil
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