Method for rapid freeze-drying of cordyceps sinensis
A technology for drying Cordyceps sinensis and Cordyceps sinensis, which is applied in the field of freeze-drying and vacuum drying, which can solve the problems of high processing cost of freeze-dried Cordyceps sinensis, large initial production investment, and high energy consumption of freeze-drying production, so as to save production time, less production links, and short working hours Effect
Inactive Publication Date: 2011-09-14
SHENYANG UNIV
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Problems solved by technology
Cooling the shelves for a long time and the cooling-heating conversion of the shelves cause a lot of energy loss, highlighting the disadvantage of high energy consumption in freeze-drying production
[0008] 3. In the existing freeze-drying technology of Cordyceps sinensis, if a freeze-drying box is used to freeze, a refrigerant is required in the shelf, and the entire freeze dryer must have a refrigeration system for the shelf, the production equipment is complicated, and the initial production investment is large.
[0009] 4. The existing freeze-drying technology of Cordyceps sinensis has many production links, long production cycle, high production energy consumption and complex production equipment, so the existing freeze-dried Cordyceps sinensis has high processing cost and weak market competitiveness
Method used
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Embodiment 1
[0029] This embodiment adopts the GLZ-0.4 type freeze dryer of Beijing Suyuan Zhongtian Technology Co., Ltd., and the method for quick freeze-drying 100 grams of fresh Cordyceps militaris is:
[0030] 1. Rinse fresh Cordyceps militaris twice with 15°C water to remove debris and dust, and soak in water for 5 minutes.
[0031] 2. Turn on the freeze dryer to refrigerate the cold trap.
[0032] 3. While cooling the cold trap, spread bamboo chips on the shelf in the freeze-drying box as a thermal insulation layer.
[0033] 4. Take the Cordyceps militaris out of the water and place them directly on the bamboo slices; insert the needle-shaped thermocouple into the Cordyceps militaris.
[0034] 5. Refrigerate the cold trap for 30 minutes, and the temperature of the cold trap is -40°C. Turn on the vacuum pump to evacuate the cold trap and the freeze-drying box; after 10 minutes, the freezing of Cordyceps militaris is completed, and the temperature of the frozen material reaches -29°C....
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The invention relates to a method for rapid freeze-drying of cordyceps sinensis, comprising the steps of: 1, soaking and washing fresh cordyceps sinensis by utilizing clear water to remove sundries and silt; 2, starting a freeze dryer to refrigerate a cold trap; 3, paving bamboo chips on a shelf in a freeze-drying box to serve as a thermal insulating layer; 4, fishing out the cordyceps sinensis from the water and directly putting the cordyceps sinensis with moisture adhering to the surface on the thermal insulating bamboo chips, wherein the quality of the moisture adhering to the surface of the cordyceps sinensis is not less than 5% of the total quality; 5, when the temperature of the freeze dryer cold trap is decreased to a temperature at which a vacuum pump can be started, starting the vacuum pump, vacuumizing the cold trap and the freeze-drying box so as to freeze the cordyceps sinensis, after the material is frozen, keeping on vacuumizing and directly entering a drying stage; 6, heating the shelf and keeping on drying; 7, stopping and decompressing the freeze-dryer and taking out the dried cordyceps sinensis; and 8, carrying out vacuum packaging on the freeze-dried cordyceps sinensis and storing up at a room temperature. The method provided by the invention has the characteristics of shortening the working hour, reducing the energy consumption, simplifying the equipment and reducing the cost.
Description
technical field [0001] The invention relates to the application field of freeze vacuum drying, in particular to a method for rapidly freezing Cordyceps sinensis. Background technique [0002] Cordyceps sinensis is a precious raw material of traditional Chinese medicine. Modern pharmacological research results show that Cordyceps sinensis contains cordycepic acid, carbohydrates, fat, protein, vitamin B12, ergoolipid alcohol, six-carbon sugar alcohol, alkaloids, etc., which can regulate human immune function , anti-fatigue, anti-tumor and other health care effects. [0003] In order to prevent moths and facilitate storage and transportation, Cordyceps sinensis needs to be dried in time after picking. The traditional drying method is to dry Cordyceps sinensis in the place of production, but the efficiency of drying Cordyceps sinensis in the sun is low, and the water content of the product is not easy to control; the temperature is not easy to control during the sun exposure pr...
Claims
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IPC IPC(8): A61K36/068
Inventor 刘军张世伟
Owner SHENYANG UNIV