Supercritical CO₂ Fluid Extraction Technology
Supercritical CO₂ Fluid Extraction technology is a new green separation technology, which is becoming more and more adaptable in the world today.
Supercritical CO₂ refers to the state of CO₂ at the time of its critical temperature and critical pressure. This state of CO₂ has a very high solubility, and this dissolution ability varies dramatically with the change of pressure and temperature. Supercritical CO₂ Fluid Extraction is the process of extracting all kinds of active components from animal and plant, and then releasing them by changing process parameters by using the dissolution capability of supercritical CO₂.
Supercritical CO₂ Fluid Extraction is a physical separation and purification method, in which CO₂ can be recycled. In addition to the replacement of the traditional solvent separation method, the technology can also solve the separation of biological macromolecules, heat-sensitive and chemical-unstable substances, so it has been paid much attention in the fields of food, medicine, spices and chemical etc. industries.
Main Characteristics of Supercritical CO₂ Fluid Extraction Technology
- Supercritical CO₂ Extraction can extract at near room temperature (35~40℃), effectively preventing the oxidation of thermo-sensitive substances. Therefore, the active constituents of medicinal plants are kept in the extracts, and the high boiling point, the low volatility and the easily pyrolysis substance can be extracted at a far lower boiling temperature.
- High extraction yield and good quality of extractive products;
- The cleanest extraction method, because the whole process without organic solvents, so the extract has no residue, to prevent the presence of human harmful substances and environmental pollution during the extraction process, to ensure that 100% of pure natural;
- Combined the extraction and separation, when the CO₂ solution which dissolved with extract enter into the separator, due to pressure drop and temperature changes, so that the dissolution ability of CO₂ quickly reduced to achieve separation, high extraction efficiency, low energy consumption;
- CO₂ is an inactive gas, the extraction process does not occur chemical reaction, and is not flammable gas, tasteless, odorless, non-toxic, safe and good;
- CO₂ gas is cheap, high purity, easy to make, and can be repeated cycle use in the production, reduce costs;
- The extraction process is simple and easy to master, and the extraction speed is fast.
Application of Supercritical CO₂ Fluid Extraction Technology
The characteristics of supercritical CO₂ extraction determine its wide application range. Mainly used in the following areas:
Extraction and purification of plant active ingredients: plant volatile oil, cannabis oil, honeysuckle active ingredient, peony essence oil, rose essence oil, lavender essential oil, flavone glycosides, Taxol, artemisinin, licorice and so on.
Food additive: caffeine removal of Coffee, capsicum red pigment, black currant seed oil, hops extract, etc.
Advanced nutritional health products: extraction of seabuckthorn seed oil, peony seed oil, natural VE, lecithin, natural fish oil, wheat germ oil, corn germ oil, allicin, α-linolenic acid, tea polyphenols.
Extraction and refinement of spices and fragrances.
Environmental protection: supercritical water oxidation treatment of sewage.
Our company has successfully applied the supercritical CO₂ Extraction Technology to the following products:
Hemp oil, Seabuckthorn seed oil, Chinese wolfberry seed oil, peony seed oil, peony flower, rose, honeysuckle, lavender essential oil, grape seed oil, angelica volatile oil, Chuanxiong volatile oil, Brucea javanica seed oil, Perilla seed oil, Tanshinone, propolis, ginger oil, garlic oil, Ganoderma spore oil, celery seed oil, adlay Oil, fennel-seed oil, primrose oil (refined), walnut oil, red pepper pigment, lycopene, egg yolk lecithin, soy lecithin, soy isoflavones, natural vitamin E, β-carotene (spirulina), cardamom, some medicinal plant extracts etc.
CHENGDONG MEDICINE MACHINE
SHANGHAI CHENGDONG TECHNOLOGY CO., LTD