Preservation and Processing of Chinese Herbal Medicine Slices

Slices of Chinese herbal medicines exposed to the air are easily contaminated by microorganisms and contaminants and decay. Now a method for extending the preservation period of Chinese herbal medicines is described as follows: Material selection and cleaning. Select fresh, non-perishable Chinese herbal medicines, clean them with deionized water or sterilizing water, and drain the surface water. 2. slice. According to the texture and function of the medicinal materials, the medicinal materials to be sliced ​​can be cut into thin slices, medium slices, thick slices, segments, blocks or silks. 3. Prepare fresh-keeping solution. Preservation liquid formula: 0.1% citric acid, 0.05% inositol hexaphosphate compound solution, 0.1% sodium benzoate, 0.02% sodium metabisulfite, 1%-2% sodium chloride, white sugar The amount is more than deionized water. The above-mentioned several kinds of raw materials are mixed and mixed evenly according to the formula proportion to obtain a fresh-keeping solution. 4. package. Slice the sliced ​​Chinese herbal medicines into a heat-resistant plastic packaging bag with a prepared fresh-keeping liquid and vacuum seal them. 5. Sterilization. Slice the packaged Chinese herbal medicines together with plastic bags in 100°C water, boil or steam for 12 minutes - 17 minutes, then quickly put into cold water and cool to below 40°C, remove and drain the water, store in a cool and dry place. Department. The freshness preservation period of traditional Chinese medicinal materials preserved by this method can reach 4 months or more, which is 4 to 5 times longer than the preservation period of traditional Chinese medicines that are not preserved under the same conditions, and the cost is low, which is very suitable for the use of small and medium medicinal material processing plants and medicinal material suppliers. .