Cordyceps Sinensis Freeze Dryer

Cordyceps Sinensis Freeze Dryer

 Usually, after the Chinese herbal medicine is collected, it should be dried in time during the preliminary 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, an appropriate method should be selected for drying according to the type of Chinese herbal medicine, the nature of the active ingredient, and the characteristics of the medicinal material.

Drying is one of the ways to keep substances from spoilage. There are many drying methods, such as sun drying, boil drying, drying, spray drying and vacuum drying. However, these drying methods are all carried out at temperatures above 0°C or higher. The products obtained by drying are generally reduced in volume and hardened in texture. Some substances are oxidized, most of the volatile components will be lost, and some heat-sensitive substances, such as proteins and vitamins, will be denatured. Microorganisms will lose their biological activity, and the dried substances will not easily dissolve in water. Therefore, the dried product has a great difference in properties compared with that before drying.

1. Cordyceps Sinensis sun drying:

Remove the mud and brush the sand on the cordyceps; sun-dry, dry the new grass excavated to make it dry to more than 90%.

2. Cordyceps Sinensis high temperature drying:

The freshly picked Cordyceps has a high water content, usually about 80%. The temperature is increased by drying equipment, and the water content of Cordyceps is reduced at high temperatures. The drying conditions of Cordyceps are observed through the observation hole until the Cordyceps are dried until they can be crushed.

Summarize:

The effect of Cordyceps is related to the temperature of drying/drying. Under high temperatures, antioxidants such as Cordycepin will be decomposed and lose their activity. The key to the retention of Cordyceps acid, Cordyceps polysaccharides, and other substances is precise temperature control. The temperature of sun drying is different in the morning, noon and afternoon, the climate in the region is different, and the drying angle of Cordyceps is also different.

The low-temperature freeze-drying technology (also called vacuum freeze-drying technology) is different from the above drying methods. The drying of the product is basically carried out at a temperature below 0 °C, that is, it is carried out in a state where the product is frozen, until the later stage, in order to further reduce the product. Residual moisture content, the product can be raised to a temperature above 0 °C, but generally not more than 40 °C

3. Cordyceps Sinensis freeze-drying:

Freeze-drying principle of Cordyceps Sinensis: The water in the fresh Cordyceps Sinensis is first frozen into a solid-state (that is, ice) at a low temperature through the Cordyceps Sinensis freeze-drying machine, and then the solid ice is directly transformed into a vapor state and sublimated in a vacuum environment, thereby obtaining freeze-dried Cordyceps. Because it is dried at low temperature, it can maintain the shape, size, taste, color, and original active ingredients of Cordyceps.

Cordyceps freeze-drying process: harvesting fresh Cordyceps Sinensis-cleaning up-laying the material tray for cordyceps-putting it into the freeze-drying room of the special freeze-drying machine for cordyceps-starting the freeze-drying program for cordyceps-waiting for the freeze-drying program to finish automatically-taking out the freeze-dried cordyceps, Just seal the package!

Traditional dried Cordyceps are prepared by sun-drying, air-drying, drying, microwave oven drying, etc. The length and thickness of the obtained Cordyceps will be reduced by about 40%, and the weight after drying is less than half of that before drying, and drying at high temperature will easily lead to the inside of Cordyceps. loss of heat-sensitive substances. From a technical point of view, the freeze-drying method is superior to the traditional preparation method.

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