CBD has received a lot of attention in medical journals and other media lately. It has also generated some controversy due to its association with marijuana, although its proponents continue to highlight the benefits of medical marijuana and its growing legal acceptance. The best cbd oil for anxiety is available online at the best stores at any given time.
CBD oil is extracted from plant material hemp in different ways, such as using carbon dioxide, steam distillation, or dissolving them in hydrocarbons or natural solvents:
Extraction with carbon dioxide
Supercritical carbon dioxide is CO2 that has properties in both liquid and gaseous states, and this CBD extraction process uses a series of pressurized chambers to expose CO2 to high pressure and low temperatures, resulting in the extraction of CBD oil with high content of CBD.
The extraction starts with a chamber containing compressed CO2 and another chamber, also under pressure, contains the products of the hemp plant. The CO2 is then pumped into the second chamber, which contains the hemp, and causes it to break down, causing the oil to separate from the plant material.
The CO2 and oil are then pumped into a third chamber, where the gas evaporates, leaving behind pure CBD oil. This is the preferred method of extracting CBD oil, although it requires specialized equipment.
The concentration of CBD oil obtained from CO2 extraction can reach 92%. By adjusting the ratio of solvent and pressure, the desired concentration of CBD can be extracted.
Steam distillation
Steam distillation separates the CBD oil from the hemp plant. Hemp is stored in a glass flask that has both an inlet and an outlet. The entrance connects to another container in which to boil water.
The exit from the hemp flask leads to the condenser tube. The steam moves up to the flask containing the plant and separates the oil from the plant. The vapour coming out of the flask contains both oil and water. This mixture is then distilled until the oil is separated from the water.
Extraction of CDBs by dissolving them in hydrocarbons or natural solvents:
The solvent extraction process is similar to steam distillation and the solvent acts as a substitute for water. This process is more efficient than steam distillation and also results in lower costs.
The solvent used can be toxic, but this can be avoided by using natural solvents such as ethanol or olive oil. The use of solvents also results in the extraction of chlorophyll from the plant, which can give the oil a bitter taste.
