How are Chinese herbal medicines processed into granules? Ask god for help

Decocting method: Decocting method is a method of boiling Chinese medicinal materials with water. The operation steps of the general decoction method are: first, cut the Chinese medicinal materials into pieces or supporting powder, then put them into a suitable vessel, then drain the water to cover the Chinese medicinal materials, soak them for a while, heat and extract them with fire, boil the residue for two or three times, collect the extracted liquid, centrifuge or filter, and finally get the remaining plaster.

This method is the most common method to prepare tablets, because the pharmaceutical ingredients are soluble in water.

Immersion method: Immersion method is to soak Chinese medicinal materials at a certain temperature, so that the medicinal properties of Chinese medicinal materials can be extracted reasonably. The operation steps of this impregnation method are as follows: firstly, Chinese herbal medicines are broken and cut into blocks, then put into a glass bottle with an outer cover, and then a certain amount of organic solvent is added to seal.

Until three or five days later, the general drug strength will be fully leached, and then the dust settles after careful consideration. This method is mainly suitable for Chinese herbal medicines that are a little sticky and have no organizational structure, but the steps are too long and inefficient.

It is best to make the ingredients in Chinese herbal medicine into powder and then into granules, so the obtained ingredients should be dried and dehydrated. There are many drying technologies, such as plastic film extraction technology, membrane separation technology and spray drying technology. These technologies have their own characteristics and advantages, so we can choose a suitable method to prepare them.