1. Airflow from a boiling dryer: The dry hot air transfers heat to the particles in the drying chamber, thereby removing moisture from the surface of the particles and then returning the moisture to the boiling dryer. This requires sufficient airflow to heat the resin to the drying temperature for a certain period of time.
2, the drying temperature of the boiling dryer: we should know that heat is the key to open the joint between water molecules and hygroscopic polymers, so the drying temperature of the boiling dryer is very critical.
3. Drying time of boiling desiccant: In the air around the particles, the absorption of heat and the diffusion of water molecules to the surface of the particles take a certain amount of time.
4, the dew point of the boiling dryer: in the drying process, the first is to remove the humid air, will contain very low residual moisture (dew point), and then by heating the air to reduce the relative humidity.
Plant extraction process
1. Select plants/medicinal materials. It is nothing more than ancient prescriptions, proven prescriptions, and folk medicinal herbs. At present, common and uncommon medicinal materials have been studied. Most of the time, the amount of medicinal materials has been increased to extract low-isolated components, or medicinal plants have not been studied from Miao medicine, Tibetan medicine, Mongolian medicine, Africa, Latin America and other places.
2. Extract. Solvent petroleum ether, n-hexane, cyclohexane, benzene, chloroform, ethyl acetate, n-butanol, acetone, ethanol, methanol, water (small polarity → large polarity). Daily decoction of medicines is effective, use water and ethanol and other solvents with high polarity. Artemisinin and other boiling methods are not effective, use petroleum ether and other solvents with low polarity. The common medicinal materials, water/alcohol/ether, are presented again, and more compounds can be separated and identified.
3. Separation. This is the most important task. There are dozens of compounds in the solution extracted in the second step. Generally, column chromatography is used, which is what we often call column flushing. The workload is large, boring, and low-tech. A master's degree may do this every day for 2 years of experimentation. As shown in the figure below, the column for separating compounds is as large as 2 meters high and as small as 10 cm. Change the solvent conditions of the mobile phase, change the material of the column, and repeatedly wash the column under different conditions and separation principles to separate the monomer compound.
High Content Monomer,Kudzu Root Powder,Magnolia Bark Extract Powder,Golden Turtle Lotus Extract
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