Chinese medicine impregnation method
The impregnation method of the medicine is divided into cold dipping method; hot dipping method; and heavy dipping method. It is suitable for the extraction of viscous herbs, unstructured medicinal materials, fresh and easily swellable medicinal materials, and inexpensive aromatic medicinal materials. Not suitable for precious herbs, toxic herbs and high concentrations of preparations. 1. Cold dipping method: an dipping operation performed at room temperature. The general operation process is as follows: take the coarse particles of the medicine, place it in a lid container, add a certain amount of solvent (white wine or ethanol), seal it, and immerse it at room temperature for 3 to 5 days or until the specified time, often shake or stir, filter The pressed dregs are combined with the filtrate, and after standing for 24 hours, the mixture is filtered to obtain an immersion liquid. This method can directly produce medicinal liquor and tincture. If the immersion liquid is concentrated, a flow extract or the like can be further prepared. 2. Hot dipping method: the operation process is: placing the coarse particles of the medicinal material in a tank with a heating device, adding a certain amount of solvent, heating in a water bath or steam to 40 ° C to 60 ° C, or boiling and then naturally cooling to impregnate to shorten the impregnation Time, the same as the cold dipping method operation. After the leaching solution is cooled, it precipitates and should be separated and removed. Flowers, leaves, and whole grass medicinal materials are usually boiled and then tempered at 80 °C. 3. Heavy impregnation method: that is, multiple impregnation method, which can reduce the loss of the drug component caused by the adsorption of the leachate by the dregs. The operation process is as follows: the whole leaching solvent is divided into several parts, and after being impregnated with * part, the dregs are further impregnated with the second solvent, so that it is repeated 2 to 3 times, and the immersion liquids are combined after the Zui .
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Other cotton materials like Cotton elastic bandage, Paris bandage and Trangle bandage, cotton ball and cotton swab will be found in our other category.
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