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Medicinal fungus mycelium freeze-dried powder and preparation method thereof

A technology of medicinal fungi and mycelium, which is applied in the preparation of microwave vacuum freeze-drying and the field of medicinal fungal mycelium freeze-dried powder, which can solve the problems of low purity and poor quality of fermented bacteria powder

Inactive Publication Date: 2014-12-10
王新华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the process is simple and convenient, the purity of the fermented bacteria powder is low and the quality is poor, so there is a big gap as a medicinal raw material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The fresh Wuling ginseng mycelium that has just been isolated through liquid submerged fermentation culture is placed in a microwave-resistant freeze-drying tray, and the thickness of the material is 10-12mm. It is pre-frozen in an ultra-low temperature freezer, and quickly frozen to -25°C , prefreeze for 1 hour;

[0019] Start the microwave vacuum freeze dryer to reduce the temperature of the cold trap to -40°C, quickly put the pre-frozen material into the drying room, the vacuum degree of the vacuum drying room is 35-45Pa, and the gap microwave heating makes the material gradually rise to Sublimation is carried out at 0°C, and when there is no ice in the material, microwave heating makes the temperature rise rapidly for analysis, the temperature of the material is controlled within 40°C, and the drying time is 3 hours to obtain a freeze-dried product with a moisture content of less than 5%;

[0020] The relative humidity of the working room is adjusted to 10-20%, and ...

Embodiment 2

[0023] Put the fresh Yunzhi mycelia that have just been separated through liquid submerged fermentation culture into a microwave-resistant freeze-drying tray, and spread them evenly, with a material thickness of 13-15mm, put them in an ultra-low temperature freezer for pre-freezing, and quickly freeze them to -30°C. Prefreeze for 1.5 hours;

[0024] Start the microwave vacuum freeze dryer to lower the temperature of the cold trap to -35°C, quickly put the pre-frozen material into the drying room, the vacuum degree of the vacuum drying room is 25-35Pa, and the intermittent microwave heating makes the material gradually rise to Sublimation is carried out at 0°C, and when there is no ice in the material, microwave heating makes the temperature rise rapidly for analysis, the temperature of the material is controlled within 45°C, and the drying time is 2.5 hours to obtain a freeze-dried product with a moisture content of less than 5%;

[0025] The relative humidity of the working r...

Embodiment 3

[0028] The freshly separated fresh Grifola frondosa mycelium obtained through submerged fermentation culture is placed in a microwave-resistant freeze-drying tray, and the thickness of the material is 8-10mm. It is pre-frozen in an ultra-low temperature freezer, and quickly frozen to -40°C. Prefreeze for 2 hours;

[0029] Start the microwave vacuum freeze dryer, lower the temperature of the cold trap to -30°C, quickly put the pre-frozen material into the drying room, the vacuum degree of the vacuum drying room is 45-65Pa, and heat the material by adjusting the microwave power. Gradually rise to 0°C for sublimation. When there is no ice in the material, increase the microwave power to heat up the temperature to rise rapidly for analysis. The temperature of the material is controlled within 45°C, and the drying time is 3 hours to obtain a freeze-dried product with a moisture content of less than 6%. ;

[0030] The relative humidity of the working room is adjusted to 20-30%, and...

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Abstract

The invention discloses medicinal fungus mycelium freeze-dried powder and a method for preparing the medicinal fungus mycelium freeze-dried powder by microwave vacuum freeze-drying. According to the method, fresh fungus mycelium is taken as a raw material, and is subjected to pre-freezing, microwave vacuum freeze-drying and low-humidity low-temperature crushing so as to obtain the mycelium freeze-dried powder. The material is dried under a microwave vacuum low-temperature condition, and has a low probability of oxidative deterioration and good quality; and the microwave-processed material can be stored for a longer time and can keep the original effective components and taste to the utmost extent; the drying time is greatly shorter than the freeze-drying time; the drying efficiency is improved; and the method is applicable to industrial production.

Description

technical field [0001] The invention relates to a medicinal fungal mycelium freeze-dried powder, in particular to a preparation method of the medicinal fungal mycelium separated by submerged fermentation by microwave vacuum freeze-drying. Background technique [0002] The production methods of medicinal fungi include cultivation, solid fermentation and liquid fermentation. In the past 30 years, the development of modern industrial fermentation production technology has advanced by leaps and bounds. People have begun to study the use of submerged fermentation technology to achieve large-scale production of fungal products. The fungal strains are separated by industrialized liquid submerged fermentation technology to obtain mycelium and dried to obtain bacterial powder. Facts have proved that the use of fermentation technology to produce fungi has the characteristics of large volume, high output, short production cycle, and no pollution. It has become an important production m...

Claims

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Application Information

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IPC IPC(8): A61K36/06A61K36/07A61K36/074A61J3/00
Inventor 王新华
Owner 王新华
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