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Method for preparing superfine rhizoma gastrodiae powder by vacuum freeze drying

A vacuum freeze-drying and gastrodia elata powder technology is applied in pharmaceutical formulations, medical preparations containing active ingredients, plant/algae/fungus/moss ingredients, etc. The effect of less pollution, high strain rate and narrow particle size distribution

Inactive Publication Date: 2014-07-30
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

However, the average particle size of Gastrodia elata powder is relatively coarse, and the median particle size is between 80-12 mesh (~200μm), which affects the use effect and the utilization rate of the drug material.

Method used

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  • Method for preparing superfine rhizoma gastrodiae powder by vacuum freeze drying
  • Method for preparing superfine rhizoma gastrodiae powder by vacuum freeze drying
  • Method for preparing superfine rhizoma gastrodiae powder by vacuum freeze drying

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The Gastrodia elata raw material collected in the Sichuan base has been determined to have a water content of 10-20%. After cleaning, peeling, and slicing, it is dried using the YRD-1030 vacuum drying equipment produced by Shanghai Yucheng Drying Equipment Co., Ltd. , select the pre-freezing temperature of Gastrodia elata to be -20°C, adjust the vacuum degree to 45-55Pa, control the vacuum drying temperature at 40-45°C, and dry for 15-18 hours, so that the water content after dehydration is controlled below 2%, and then After coarse crushing, put it into an airflow mill for crushing. The domestic flat airflow mill is STG-10 series. The diameter of the studio used for airflow milling is φ100-150mm, the number of nozzles is 4, and the production capacity is 10-20kg / h, the median particle size of the product is about 10-15 μm.

Embodiment 2

[0047] The moisture content of the initial Gastrodia elata raw material is 10% to 15%, the pre-freezing temperature is -25°C, the drying temperature is 50°C, and the post-drying analysis stage is extended for 2 hours, a total of 20 hours. The water content of the dehydrated Gastrodia elata is measured at Below 1%. The fine powder obtained after pulverization is 1000 mesh, and the median particle size is in the range of 10-12 μm, and the rest are the same as in Example 1.

[0048] 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 method for preparing superfine rhizoma gastrodiae powder by vacuum freeze drying. The method is characterized in that by combining the vacuum freeze drying process technology with the supersonic airflow low-temperature grinding process technology, a fresh rhizoma gastrodiae raw material is cleaned, peeled and sliced, and then, freeze drying is performed; then, coarse grinding is performed; and then, supersonic airflow grinding is performed to prepare the superfine rhizoma gastrodiae powder. According to the method, the fresh rhizoma gastrodiae raw material is made into the freeze-drying superfine rhizoma gastrodiae powder by adopting the international advanced vacuum freeze drying superfine grinding technology and process, and the powder is originally white. The original biological enzyme, the protein, the amino acid, the vitamin and the thermosensitive effective component of rhizoma gastrodiae are kept to the maximum limit, so that the nutritional value and the drug action of the active freeze-drying rhizoma gastrodiae are improved. The superfine rhizoma gastrodiae powder is far superior to traditional rhizoma gastrodiae powder prepared by drying in the sun and heated-air drying.

Description

technical field [0001] The invention relates to a method for preparing superfine Gastrodia elata powder by vacuum freeze-drying, which belongs to the application field of vacuum freeze-drying technology in food or medicine. Background technique [0002] Insomnia is relatively common in modern society. In addition to pathological causes, young and middle-aged office workers and students also often suffer from insomnia due to social, life, work and study pressures. Long time not only affects life, work and study. And it can lead to memory loss, forgetfulness, high blood pressure, heart disease, diabetes, stomach problems, obesity, stroke and other diseases. Insomnia has a greater impact on middle-aged and elderly people, even life-threatening. In addition, seamen and soldiers who have been working at sea for a long time are also more prone to insomnia, which has a great impact. [0003] For insomnia, Western medicines such as diazepam are generally taken, which not only aff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/8988A61P25/08A61P25/00A61P29/00A61P9/10
Inventor 孙企达陈德
Owner 上海玉成干燥设备有限公司