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Cordyceps sinensis freeze-drying method for retaining cordyceps polysaccharide and SOD activity

A technology of Cordyceps sinensis and Cordyceps polysaccharides, which is applied in the field of freeze-drying, can solve the problems of color change, Cordyceps polysaccharides and SOD nutritional value loss, volume reduction, etc., and achieve the effects of convenient transportation and sales, good rehydration, and easy long-term storage

Inactive Publication Date: 2018-12-04
重庆戴贺李生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the volume reduction, color change, and loss of nutritional value of components such as Cordyceps polysaccharide and SOD that tend to occur during the drying process of Cordyceps sinensis, the present invention provides a method for freeze-drying Cordyceps sinensis that retains the activities of Cordyceps polysaccharides and SOD;

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Eliminate impurities such as sand and stones in the Cordyceps sinensis, and pick out the Cordyceps sinensis with damage and decay;

[0023] (2) Use an ultrasonic cleaning machine to clean and drain the surface water;

[0024] (3) Pre-freeze the drained Cordyceps: freezing temperature -30℃, freezing time 2 hours;

[0025] (4) Vacuum freeze drying: sublimation drying temperature is -25℃, freezing pressure is 12Pa, drying time is 1 hour; analysis temperature is 15℃, pressure is 18Pa, time is 6 hours; the moisture content of the finished product is 2~3%;

[0026] (5) Place the freeze-dried Cordyceps sinensis in an ozone sterilization cabinet, the concentration of ozone is 130ppm, and the sterilization time is 60min;

[0027] (6) Finished product inspection to check whether the quality of the product is qualified;

[0028] (7) Vacuum packaging and storage at room temperature;

Embodiment 2

[0030] (1) Eliminate impurities such as sand and stones in the Cordyceps sinensis, and pick out the Cordyceps sinensis with damage and decay;

[0031] (2) Use an ultrasonic cleaning machine to clean and drain the surface water;

[0032] (3) Pre-freezing: freezing temperature -45℃, freezing time 5 hours;

[0033] (4) Vacuum freeze-drying: sublimation drying temperature is -30℃, freezing pressure is 30Pa, drying time is 15 hours; analysis temperature is 20℃, pressure is 30Pa, and time is 3 hours;

[0034] (5) Put the freeze-dried Cordyceps sinensis in an ozone sterilization cabinet, the concentration of ozone is greater than 140ppm, and the sterilization time is 60min;

[0035] (6) Finished product inspection to check whether the quality of the product is qualified;

[0036] (7) Vacuum packaging and storage at room temperature;

Embodiment 3

[0038] (1) Eliminate impurities such as sand and stones in the Cordyceps sinensis, and pick out the Cordyceps sinensis with damage and decay;

[0039] (2) Use an ultrasonic cleaning machine to clean and drain the surface water;

[0040] (3) Pre-freezing: freezing temperature -35℃, freezing time 3 hours;

[0041] (4) Vacuum freeze drying: sublimation drying temperature is -28℃, freezing pressure is 20Pa, drying time is 13 hours; analysis temperature is 18℃, pressure is 20Pa, time is 4 hours;

[0042] (5) Place the freeze-dried Cordyceps sinensis in an ozone sterilization cabinet, the concentration of ozone is greater than 130ppm, and the sterilization time is 60min;

[0043] (6) Finished product inspection to check whether the quality of the product is qualified;

[0044] (7) Vacuum packaging and storage at room temperature;

[0045] The freeze-drying method of the present invention is simple in process and convenient to operate. The activity of the cordyceps obtained has no change, the lo...

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Abstract

The invention discloses a cordyceps sinensis freeze-drying method for retaining cordyceps polysaccharide and SOD activity. Cordyceps sinensis is newly picked. The freeze-drying method specifically comprises the following steps that (1) raw materials are subjected to impurity removal and screening; (2) the raw materials are cleaned; (3) pre-freezing is carried out with the freezing temperature being -30 DEG C to -45 DEG C and the freezing time being 2-5 hours; (4) vacuum freeze drying is carried out, wherein the sublimation drying temperature is -25 DEG C to -30 DEG C, the freezing pressure is12-30 Pa, the drying time is 12-15 hours, the resolving temperature is 15-20 DEG C, the pressure is 18-30 Pa, and the time is 3-6 hours; (5) ozone sterilization is carried out; (6) finished cordycepssinensis products are obtained; and (7) the finished cordyceps sinensis products are subjected to vacuum packaging and normal-temperature storage. By means of the freeze-drying mode, internal molecular structures and nutrition ingredients of cordyceps sinensis can be completely retained, and the full shape and golden color of cordyceps sinensis can also be maintained.

Description

Technical field [0001] The invention relates to a cordyceps freeze-drying method that retains cordyceps polysaccharide and SOD activity, and belongs to the technical field of freeze-drying. Background technique [0002] Cordyceps is a valuable nourishing Chinese medicinal material in my country. Its nutritional content is higher than that of ginseng. It can be used as medicine and edible. It is a superior delicacy and has high nutritional value. Cordyceps can enhance the body's immunity, nourish the lungs and kidneys, and have a significant inhibitory effect on lung cancer and liver cancer. It is clinically effective for chronic cough, asthma, tuberculosis, hemoptysis, night sweats, kidney deficiency, waist and knee pain, neurasthenia, and red blood cell decline after chemotherapy and radiotherapy; [0003] Modern pharmacological research results show that Cordyceps contains cordycepic acid, carbohydrates, proteins, vitamins, alkaloids, etc., which has the function of regulating h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B5/06A61K36/068
CPCA61K36/068F26B5/06
Inventor 戴政平
Owner 重庆戴贺李生物科技有限公司
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