Studies have shown that if cannabinol is used reasonably in medicine, it has anti-epilepsy, anti-psychotic, anti-depressant, analgesic, reducing the nausea caused by chemotherapy and treating asthma. Therefore, many people wonder what is the best cbd extraction method. There are several extraction methods, and the best cbd extraction method is ethanol extraction method. Solvent extraction uses a solvent rather than water to separate the cbd from the plant material. During the process of extracting cbd, there are also some other steps, and the whole process is as follows:
1. The hemp plant should be dried at 105-120 degrees Celsius for 0.5-4 hours to obtain a raw material having a moisture content of less than 7%. For this step, users could use mash belt drier to get hemp plant dried.
2. Extract cbd from the dried hemp material, and obtain the liquid and residue after extraction . Ethanol is used as the washing liquid to extract cbd out of hemp plant by industrial centrifuge. The liquid is going through throttled of vacuum suction filter to resolve the cbd and then the solvent is recovered.
3. Filtration: Get isolated cbd filtered by using an ultrafiltration membrane with a molecular weight cut-off of 80-120 kD. And make filtered cbd flow through UV light to get purified.
Ethanol extraction method of cbd is the most popular used method in industrial, chemical, pharmaceutical and other application fields. Because the ethanol can be used for several times, so this method is more energy-saving.