What is a CO2 extract / oil? Supercritical carbon dioxide isn’t only a efficient solvent for apolar compounds, in fact, if it’s combined with fluid modifiers like water, it becomes a very efficient solvent also for medium polar and polar substances (caffeine for coffee decaffeination). The … [Read more...] about What is a CO2 extract / oil?

How does CO2 extraction work? The main feature of supercritical fluids (SCF) is the tunability of their properties as solvent, supercritical CO2 or SC-CO2 extraction processes present an important advantage over low pressure methods, i.e., the selectivity of supercritical CO2 can be adjusted by … [Read more...] about How does CO2 extraction work?

Supercritical CO2 extraction benefits The supercritical CO2 extraction is, beyond all doubt, the best extraction technique available today. It is the best not only for the quality of its extracts, but also for the absence of contamination. For this reason, the exhausted matrix (flour, etc. ..) … [Read more...] about Supercritical CO2 extraction benefits

Semi Continuous Extraction The semi continuous extraction reduces the down time and bacteria pollution in the system.The CO2 flows continuously in the circuit, preventing the accumulation of Dirt and Bacteria.In the semi-continuous extraction process, the … [Read more...] about Semi Continuous Extraction

Overlapping extraction While in the simple semi continuous extraction the system is equipped with 2 extraction vessels, in the overlapping extraction the system is equipped with 3 extraction vessels.Taking advantage on the typical flowers and leaves extraction … [Read more...] about Overlapping extraction

Soaking or Static-Dynamic extraction The soaking extraction or static-dynamic-steps (SDS) allows the supercritical co2 to remain in contact with the raw material for the time necessary to dissolve the target compound. The raw material is brought to the set point pressure and, when … [Read more...] about Soaking or Static-Dynamic extraction

SFC Supercritical Fluid Chromatography Chromatography is a fractionation technique widely utilized in the pharmaceutic industry, where productions are highly valuable, because it is a very efficient technique, and it allows to separate compounds which would be not … [Read more...] about SFC Supercritical Fluid Chromatography

Terpenes extraction Terpenes, main constituents of essential oils, commonly called “essences”, are widely spread both in the animal and plant kingdoms in the form of apparently different substances but all united by the same basic structure, all recognized as multiples of the compound 2 … [Read more...] about Terpenes extraction

The importance of Cleaning The cleaning procedure is an important practice: it has the same importance of the extraction process. Any extraction system needs to be cleaned periodically: this period depends on many factors, and All these topics have an impact on the cleaning period: … [Read more...] about The importance of Cleaning

Co-solvent pump A liquid co-solvent can be added to CO2 to increase its solvent power on polar molecules.Indeed, supercritical CO2 is a good solvent for lipophilic (non-polar compounds like oils), whereas, it has a low affinity with hydrophilic (polar compounds like sugars).Process engineers … [Read more...] about Co-solvent pump

Extraction efficiency of CO2 Supercritical carbon dioxide isn’t only a efficient solvent for apolar compounds, in fact, if it’s combined with fluid modifiers like water, it becomes a very efficient solvent also for medium polar and polar substances (caffeine for coffee decaffeination).The … [Read more...] about Extraction efficiency of CO2

Separation and fractionation processes After the extraction process, the mixture composed by CO2 and solutes leaves the extraction vessel(s) and it is directed to the separation vessels.  By varying the pressure, flow and temperature of these vessels, it is possible to induce the selective … [Read more...] about Separation and fractionation processes