Process for preparing dendrobium officinale freeze-dried powder

A technology of Dendrobium officinale and preparation process, which can be used in freeze-drying transportation, medical preparations containing active ingredients, powder transportation, etc., can solve the problems of insufficient development of new products, insufficient deep-processed products, etc., and achieve biological activity retention and scientific steps. Reasonable, low preparation temperature effect

Active Publication Date: 2017-02-22
NANJING XIYUAN BIOPHARML SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the development of many Dendrobium candidum products is only at the low level of primary processing, and the deep-processed products are insufficient or the development of new products is not enough. In addition, due to the high commercial value of Dendrobium candidum, the promotion of it in the market is too exaggerated, resulting in shoddy products Phenomena emerge in endlessly

Method used

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  • Process for preparing dendrobium officinale freeze-dried powder
  • Process for preparing dendrobium officinale freeze-dried powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation technology of dendrobium officinale freeze-dried powder comprises the following steps:

[0032] (1) Raw material preparation: get Dendrobium officinale meeting the requirements of the "Pharmacopoeia of the People's Republic of China" (2015 edition), wash with water, remove sundries, and rinse with purified water;

[0033] (2) Cut into pieces: mechanically cut into sections, cut into 2-4cm;

[0034] (3) Crushing and beating: add pure water according to the ratio of solid-liquid ratio 1g: 100ml for crushing and beating, grinding speed: 3000rpm, operating temperature: 40°C, pass through a 30-mesh filter, and receive the pulp;

[0035] (4) Vacuum drying: Take the above juice, pre-freeze overnight at -18°C to -20°C, then vacuum freeze-dry, set the cold trap temperature to -26°C, vacuum degree -0.9 to -0.1 Pa, freeze-drying time 18h, The final sublimation time is 14 hours, and the sublimation temperature is 40-45°C;

[0036] (5) Pulverization: the freeze-dri...

Embodiment 2

[0038] The preparation process of the freeze-dried powder of Dendrobium officinale is the same as in Example 1, except that in step (4), the freeze-drying time is 20 hours, and the sublimation is 16 hours.

Embodiment 3

[0040] The preparation technology of dendrobium officinale freeze-dried powder comprises the following steps:

[0041] (1) Raw material preparation: get Dendrobium officinale meeting the requirements of the "Pharmacopoeia of the People's Republic of China" (2015 edition), wash with water, remove sundries, and rinse with purified water;

[0042] (2) Cut into pieces: mechanically cut into sections, cut into 2-4cm;

[0043] (3) Crushing and beating: add pure water according to the ratio of solid-liquid ratio 1g: 80ml for crushing and beating, grinding speed: 3500rpm, operating temperature: 42°C, pass through a 28-mesh filter, and receive the pulp;

[0044] (4) Vacuum drying: Take the above juice, pre-freeze overnight at -18°C ~ -20°C, then vacuum freeze-dry, set the cold trap temperature at -24°C, vacuum degree -1.1 Pa, freeze-drying time 16h, and finally sublimate for 12h , the sublimation temperature is 38°C;

[0045] (5) Pulverization: the freeze-dried powder obtained in ste...

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Abstract

The invention discloses a process for preparing a dendrobium officinale freeze-dried powder. The process comprises the following steps: (1) preparing a raw material, namely, washing dendrobium officinale which meets standards with water, removing impurities, and bleaching with purified water; (2) dicing, namely, cutting the dendrobium officinale into segments of 2-4cm by using a machine; (3) crushing and pulping, namely, crushing and pulping by using pure water in a solid-liquid ratio of 1g:(80-120)ml, screening by using a net of 28-32 meshes, and collecting filtrate; (4) performing vacuum drying, namely, performing pre-freezing on the pulp at minus 18 DEG C to minus 20 DEG C over night, performing vacuum freeze-drying for 16-22 hours, and finally sublimating for 12-18 hours; (5) crushing, tidily crushing the freeze-dried powder obtained in the step (4), and screening granules by using a net of 70-90 meshes, thereby obtaining the dendrobium officinale freeze-dried powder. Compared with the prior art, the process disclosed by the invention is simple to operate, scientific and reasonable in step, free of solvent pollution or residue in the preparation process of the dendrobium officinale freeze-dried powder, low in preparation temperature, and capable of ensuring that bioactivity of functional substances of the dendrobium officinale is not lost.

Description

technical field [0001] The invention relates to a preparation process of dendrobium officinale freeze-dried powder, belonging to the technical field of pharmaceutical preparations. Background technique [0002] Dendrobium candidum products currently on the market, one is to make stems into dry products, that is, Tiepi Fengdou, which cuts off the leaves and fibrous roots of Dendrobium candidum, and twists them into spiral or spring-shaped dry products while drying; the other is fresh products Direct sales, including stems, flowers and leaves; the third is intensive processing products, mainly including granules, capsules, extracts, oral liquids, buccal tablets, tea, compound preparations and other types of medicines and health food. Various types of health food have been developed, and most of them are compound health products with other ingredients added. Dendrobium candidum health food is generally composed of two or more medicinal materials (including Dendrobium candidum)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/8984A61K9/19A61K9/20A61P37/04
CPCA61K9/19A61K9/2059A61K36/8984A61K2236/31A61K2236/51
Inventor 刘勇业
Owner NANJING XIYUAN BIOPHARML SCI & TECH
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