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Novel drying method of fresh traditional Chinese medicine materials and application of dried traditional Chinese medicine materials

A technology for fresh medicinal materials and traditional Chinese medicinal materials, which is applied in the field of processing fresh medicinal materials of traditional Chinese medicinal materials by microwave vacuum freeze-drying technology, can solve the problems of long time, difficult production and practical promotion, and high energy consumption.

Inactive Publication Date: 2015-01-21
王新华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Invention patent CN103591772A discloses a processing method of vacuum freeze-drying marshmallow flowers, which obtains dried medicinal materials with fresh medicinal characteristics and achieves ideal effects. However, due to long-term freeze-drying, high energy consumption and long time, it is difficult to apply in actual production. promotion;
[0011] Invention patent CN103041186A discloses a method of using microwave vacuum freeze-drying fresh medicinal materials of Dendrobium, which shows that microwave vacuum freeze-drying technology can be used for drying processing of fresh medicinal materials, but this technology has not been popularized and applied in the scope of the patented fresh medicinal materials of the present invention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Select fresh medicinal mint to remove impurities, wash it with pure water, dry it with a centrifugal dehydrator, cut it into strips of 2-3 cm in length, put it in a microwave-resistant freeze-drying tray, and spread the medicinal materials with a thickness of 1.2-2.0 cm , put it in an ultra-low temperature freezer for pre-freezing, quickly freeze to -30°C, and pre-freeze for 1.5 hours;

[0026] Start the microwave vacuum freeze dryer, lower the temperature of the cold trap to -40°C, put the pre-frozen fresh mint into the drying room quickly, the vacuum degree of the vacuum drying room is 45-55Pa, and heat the medicinal material with intermittent microwave for 3 hours. Gradually rise to 0°C for sublimation, then intermittent microwave heating to make the temperature rise rapidly for analysis, the temperature of the medicinal material is controlled within 35°C, and the drying time is 2 hours to obtain a freeze-dried mint medicinal material with a moisture content of less t...

Embodiment 2

[0032] Select the fresh medicinal material Cordyceps sinensis to remove the broken impurities, remove the dirt and dirt on the surface with a toothbrush, wash it with pure water, blow dry with a cold fan, put it in a microwave-resistant freeze-drying tray, and spread it evenly. The stacking thickness does not exceed 1.0cm, and put it in an ultra-low temperature freezer Medium pre-freezing, quick freezing to -45°C, pre-freezing for 2 hours;

[0033]Start the microwave vacuum freeze dryer, lower the temperature of the cold trap to -45°C, quickly put the pre-frozen fresh Cordyceps sinensis into the drying room, the vacuum degree of the vacuum drying room is 35-50Pa, and microwave the intermittent heating for 4 hours to make the medicinal material Gradually rise to 0°C for sublimation, and then intermittent microwave heating to make the temperature rise rapidly for analysis, the temperature of the medicinal material is controlled within 40°C, and the drying time is 2.5 hours to obt...

Embodiment 3

[0038] Select the fresh medicinal bitter gourd to remove impurities, wash it with pure water, dry it with a centrifugal dehydrator, then cut the bitter gourd into strips with a length and width of 0.8-1.5cm and a thickness of 0.1-0.2cm, and put them in microwave-resistant freezers. Spread out flat on a dry plate, stacked with a thickness of 0.5-0.8cm, pre-freeze in an ultra-low temperature freezer, quickly freeze to -40°C, and pre-freeze for 2 hours;

[0039] Start the microwave vacuum freeze dryer, lower the temperature of the cold trap to -45°C, quickly put the pre-frozen fresh bitter gourd into the drying room, the vacuum degree of the vacuum drying room is 25-35Pa, and heat the medicinal material with intermittent microwave for 5 hours. Gradually rise to 0°C for sublimation, then intermittent microwave heating to make the temperature rise rapidly for analysis, the temperature of the medicinal material is controlled within 50°C, and the drying time is 3 hours to obtain freez...

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Abstract

The invention discloses a novel drying method of fresh traditional Chinese medicine materials and application of dried traditional Chinese medicine materials. The novel drying method disclosed by the invention comprises the following steps: performing pretreatment on the fresh traditional Chinese medicine materials, then pre-freezing, further performing microwave vacuum freeze-drying to obtain the freeze-dried medicine materials, crushing and packaging at low moisture and low temperature and further preparing a traditional Chinese medicine preparation. The materials are dried at low temperature in a microwave vacuum state, and are less prone to oxidative deterioration; and the quality is good, the drying time is shortened in comparison with freeze-drying, and the drying efficiency is improved.

Description

technical field [0001] The invention relates to a novel drying method for fresh traditional Chinese medicinal materials, in particular to processing fresh traditional Chinese medicinal materials by microwave vacuum freeze-drying technology and its application. Background technique [0002] Fresh Chinese herbal medicines refer to "original medicinal materials" that have not been processed in any way that may cause changes or losses in the composition of Chinese herbal medicines. [0003] Fresh herbs of traditional Chinese medicine have the characteristics of rich active ingredients, good quality and quick curative effect. Many medical scientists in ancient times attached great importance to the application of fresh herbs, and recorded a large amount of information and experience. They have important clinical reference value of traditional Chinese medicine and have a long history of application. history. For example, Sun Simiao's "Thousand Gold Prescriptions" and "Thousand Go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/534A61K36/068A61K36/42A61K36/355A61K36/258A61K35/583A61K36/00F26B5/06
Inventor 王新华
Owner 王新华
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