Pharmaceutical Freeze Deyer For Fresh Cordyceps Sinensis
Usually, after the Chinese herbal medicines are collected, they must be dried in time during the initial processing. The purpose of drying is to remove the moisture contained in the medicinal materials, reduce the volume, and facilitate transportation and storage. When drying, choose an appropriate method for drying according to the types of Chinese herbal medicines, the nature of the active ingredients, and the characteristics of the medicinal materials.
Drying is one of the methods to keep materials from spoiling. There are many drying methods, such as sun drying, boiling, drying, spray drying and vacuum drying. However, these drying methods are all performed at temperatures above 0°C or higher. The product obtained by drying generally shrinks in volume and hardens in texture. Some substances are oxidized, and most of the volatile components will be lost. Some heat-sensitive substances, such as proteins and vitamins, will be denatured. Microorganisms will lose their biological vitality, and the dried substances are not easily dissolved in water. Therefore, the properties of the dried product are quite different from those before drying.
1. Cordyceps is dried in the sun:
To remove the mud, brush the mud and sand on the body of the cordyceps; to dry it, air dry the newly excavated grass to make it dry to more than 90%.
2. Dry Cordyceps:
The freshly picked Cordyceps has a high moisture content, usually about 80%. The water content of the Cordyceps is reduced by the temperature of the drying equipment, and the water content of the Cordyceps is reduced under high temperature. The drying situation of the Cordyceps is observed through the observation hole until the Cordyceps is dried until it can be crushed.
to sum up:
The effect of cordycepin is related to the drying/drying temperature. High temperature will cause the degradation of anti-oxidant substances such as cordycepin and loss of activity. The key to the retention of substances such as cordycepic acid and cordyceps polysaccharide is precise temperature control. The sun-dried temperature is different in the morning, noon, and afternoon. The climate in the region is different, and the angle of the cordyceps drying is also different. It is completely impossible to control and predict the problem of cordyceps drying, and the natural efficacy is poor.
The low-temperature freeze-drying technology (also called vacuum freeze-drying technology) is different from the above drying methods. The product is basically dried at a temperature below 0°C, that is, the product is frozen until the later stage, in order to further reduce the product The residual moisture content will allow the product to rise to a temperature above 0°C, but generally does not exceed 40°C.
3. Freeze-dried Cordyceps sinensis:
The principle of cordyceps freeze-drying: first freeze the moisture in the fresh cordyceps into a solid state (ie ice) at a low temperature through a cordyceps freeze-drying machine, and then directly transform the solid ice into a vapor state and sublimate it under a vacuum environment to obtain a freeze-dried Cordyceps. Because it is dried at low temperature, it can maintain the shape, size, taste, color and original effective ingredients of the insect grassland.
Cordyceps freeze-drying process: harvest fresh Cordyceps sinensis-clean up-lay the material tray of Cordyceps-put it into the freeze-drying chamber of the special freeze dryer for cordyceps-start the cordyceps freeze-drying program-wait for the automatic end of the freeze-drying program-take out the freeze-dried cordyceps, Seal the package!
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