Dendrobium polysaccharide extract, and preparation method thereof

A technology for dendrobium polysaccharide and extract is applied in the field of dendrobium polysaccharide extract and its preparation, which can solve the problems of undisclosed yield of dendrobium polysaccharide, high safety requirements, complicated process operation, etc. The effect of large processing capacity

Inactive Publication Date: 2019-08-23
广州泽力医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the traditional plant polysaccharide extraction technology, mainly water extraction and alcohol precipitation method, microwave method, ultrasonic assisted water extraction method, supercritical fluid extraction method, etc., all of the above methods have the defects of low extraction efficiency and low yield of Dendrobium polysaccharides, usually Dendrobium polysaccharide extraction rate is not higher than 30%, and the process is complicated
[0004] Another method is to use low-temperature ultra-high pressure (UHP) technology to extract polysaccharides from Dendrobium. Under the conditions of low temperat

Method used

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  • Dendrobium polysaccharide extract, and preparation method thereof
  • Dendrobium polysaccharide extract, and preparation method thereof
  • Dendrobium polysaccharide extract, and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0037] This embodiment is a preparation method of Dendrobium polysaccharide extract, the steps are as follows (process flow chart see figure 1 ):

[0038] 1. cut into strips: fresh dendrobium stem (its microscope image is as figure 2 shown) cut into small pieces between 0.5cm and 2cm;

[0039] 2. Pulverization: Use a high-efficiency turbo pulverizer with a pore size of 0.8mm to pulverize the fresh dendrobium stem segments into a fine pulp by adding a certain amount of purified water;

[0040] 3. Mixing and pulping: put the crushed fresh Dendrobium finely crushed pulp and purified water in the mixing tank of the high-speed mixer, stir and mix evenly and control the temperature not to exceed 25°C;

[0041] 4. Extraction: Add the mixed solution into the buffer tank of the high pressure difference continuous extractor, control the extraction force range to 25-35MPa, and extract the temperature at 20°C; collect the discharge to obtain the mixed material liquid; the high pressure...

Embodiment 2

[0051] This example is a preparation method of Dendrobium polysaccharide extract, the steps of which are the same as Example 1, the only difference is that in Step 4, the extraction pressure difference is controlled to be 10-20 MPa, and the extraction temperature is 35°C.

[0052] Specific steps are as follows:

[0053] 1. Cut into strips: Cut the fresh Dendrobium stems into small sections between 0.5cm and 2cm with a traditional Chinese medicine slicer;

[0054] 2. Pulverization: Use a high-efficiency turbo pulverizer with a pore size of 0.8mm to pulverize the fresh dendrobium stem segments into a fine pulp by adding a certain amount of purified water;

[0055] 3. Mixing and pulping: put the crushed fresh Dendrobium finely crushed pulp and purified water in the mixing tank of the high-speed mixer, stir and mix evenly and control the temperature not to exceed 25°C;

[0056] 4. Extraction: Add the mixed solution into the buffer tank of the high-pressure differential continuous...

Embodiment 3

[0065] This example is a preparation method of Dendrobium polysaccharide extract, the steps of which are the same as those of Example 1, the only difference is that in Step 4, the extraction pressure difference is controlled to be 40-50 MPa, and the extraction temperature is 15°C.

[0066] Specific steps are as follows:

[0067] 1. Cut into strips: Cut the fresh Dendrobium stems into small sections between 0.5cm and 2cm with a traditional Chinese medicine slicer;

[0068] 2. Pulverization: Use a high-efficiency turbo pulverizer with a pore size of 0.8mm to pulverize the fresh dendrobium stem segments into a fine pulp by adding a certain amount of purified water;

[0069] 3. Mixing and pulping: put the crushed fresh Dendrobium finely crushed pulp and purified water in the mixing tank of the high-speed mixer, stir and mix evenly and control the temperature not to exceed 25°C;

[0070] 4. Extraction: Add the mixed solution into the buffer tank of the high-pressure differential c...

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Abstract

The invention relates to a dendrobium polysaccharide extract, and a preparation method thereof. The preparation method comprises following steps: 1, pretreatment, wherein dendrobium raw material is prepared, and is crushed so as to obtain a raw material powder; 2, extraction, wherein the raw material powder is added into water so as to obtain a pre-mixed solution, the pre-mixed solution is subjected to high differential pressure continuous extraction, an obtained extracted solution is collected, the extraction pressure of high differential pressure continuous extraction is controlled to be -0.1 to 50MPa; 3, separation, wherein the extracted solution is subjected to centrifugation, an obtained supernatant is collected and is subjected to microfiltration so as to obtain a microfiltered clearliquid; and 4, condensation, wherein the microfiltered clear liquid is subjected to condensation so as to obtain the dendrobium polysaccharide extract. The preparation method is capable of increasingdendrobium polysaccharide yield with ensured dendrobium extraction efficiency, and is capable of realizing industrialized continous large scale production.

Description

technical field [0001] The invention relates to the technical field of plant component extraction, in particular to a dendrobium polysaccharide extract and a preparation method thereof. Background technique [0002] Dendrobium officinale contains polysaccharides, alkaloids, proteins, flavonoids, 17 kinds of amino acids and 7 kinds of inorganic elements, the main active ingredient of which is Dendrobium polysaccharides. Modern pharmacological studies have shown that Dendrobium polysaccharides have the effects of improving immunity, anti-tumor, anti-oxidation, lowering blood sugar, lowering blood pressure and anti-Sjogren's syndrome. Therefore, it is of great significance to study the development of extraction technology of Dendrobium officinale polysaccharides. [0003] In the traditional plant polysaccharide extraction technology, mainly water extraction and alcohol precipitation method, microwave method, ultrasonic assisted water extraction method, supercritical fluid extr...

Claims

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Application Information

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IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 刘常青马志鹏宋力飞刘乡乡
Owner 广州泽力医药科技有限公司
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