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Superfine eucommia ulmoides powder and preparation method thereof

A technology of eucommia powder and low-temperature crushing, which is applied in the direction of pharmaceutical formulas, medical preparations containing active ingredients, and plant raw materials. Effect of narrow particle size distribution

Inactive Publication Date: 2014-04-16
上海玉成干燥设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, at present, the preparation of eucommia powder at home and abroad is generally heat-dried and crushed, and the particles are relatively coarse, with the smallest median particle size of 80-120 mesh (~200μm), which seriously affects the use effect and the utilization rate of the drug material.

Method used

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  • Superfine eucommia ulmoides powder and preparation method thereof
  • Superfine eucommia ulmoides powder and preparation method thereof
  • Superfine eucommia ulmoides powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The bark flakes of Eucommia ulmoides collected in the Sichuan base were measured to have a moisture content of 45-50%. They were dried with YRD-1030 vacuum drying equipment produced by Shanghai Yucheng Drying Equipment Co., Ltd. The temperature is -20°C, the vacuum degree is adjusted to 45-55Pa, the vacuum drying temperature is controlled at 40-45°C, and the drying time is 15-18 hours, so that the water content of Eucommia after dehydration is controlled below 2%, and then sealed in the first Put it into the jet mill for pulverization, and the domestic flat jet mill is STG-10 series. The diameter of the studio used in jet milling is φ100-150mm, the number of nozzles is 4, the angle between the axis of the nozzle and the radius of the studio is 30°-50°, and the nozzle is installed in the middle of the studio. The production capacity is 10-20kg / h, and the median particle size of the product is about 10-15μm.

Embodiment 2

[0044] The water content of the initial Eucommia bark flakes is 45% to 50%, the pre-freezing temperature is -30°C, the drying temperature is 50°C, and the dehydration stage is extended for 2 hours in the later stage of drying, a total of 20 hours. The water content of Eucommia is below 1%. The median diameter of the particles obtained after pulverization is in the range of 10-12 μm, and the rest are the same as in Example 1.

[0045] From the above two examples, the lower the water content after freeze-drying, the more thorough the dehydration and the easier the crushing of the product.

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Abstract

The invention relates to a superfine eucommia ulmoides powder and a preparation method thereof. The preparation method is characterized by comprising the following steps of performing freeze drying on fresh eucommia ulmoides bark by combining the vacuum freeze drying process technology with the supersonic airflow low-temperature grinding process technology; then, sealing; and crushing at the very first time to directly prepare the eucommia ulmoides bark into the superfine eucommia ulmoides powder. According to the preparation method, the eucommia ulmoides bark is directly prepared into the freeze-drying superfine eucommia ulmoides powder by adopting the international advanced vacuum freeze drying ultrafine grinding process technology. The original biological enzyme, the protein, the amino acid, the vitamin and the thermosensitive effective component of eucommia ulmoides are kept to the maximum limit, so that the nutritional value and the drug action of the active freeze-drying eucommia ulmoides are improved, and the freeze-drying eucommia ulmoides powder is far superior to traditional eucommia ulmoides powders prepared by drying in the sun and heated-air drying.

Description

technical field [0001] The invention relates to an ultrafine eucommia powder and a preparation method thereof, in particular to the preparation of the ultrafine powder of the traditional Chinese medicine Eucommia ulmoides by vacuum freeze-drying ultrafine pulverization technology, and belongs to the application field of vacuum freeze-drying ultrafine powder in food and medicine . Background technique [0002] Eucommia ulmoides is a traditional precious Chinese medicine. Eucommia ulmoides is a medicinal plant of Eucommiaceae. It is a deciduous tree with taupe and rough bark. Its branches, leaves and roots contain eucommia gum. Especially when the bark is broken and pulled apart, there are many silver-white fine particles. Silk. Ancient Chinese "Shen Nong's Materia Medica" and Ming Dynasty Li Shizhen's "Compendium of Materia Medica" are listed as top grade. Eucommia ulmoides is sweet in taste, warm in nature, and has the functions of nourishing the liver and kidney, strength...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/46A61P1/14A61P15/06A61K129/00
Inventor 孙企达陈德
Owner 上海玉成干燥设备有限公司
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