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Method and Application of Extracting Dihydromyricetin from Rattan Tea

A technology of dihydromyricetin and vine tea, applied in the fields of application, function of food ingredients, organic chemistry, etc., can solve problems such as complex equipment and operating procedures, achieve easy industrial operation and application, shorten extraction cycle, and increase extraction yield Effect

Active Publication Date: 2020-09-08
黄云祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The more advanced extraction method is the continuous countercurrent extraction technology in the microwave dynamic cycle stage. It combines the advantages of microwave-assisted extraction of active ingredients of traditional Chinese medicine and the characteristics of continuous countercurrent extraction. It adopts the MARS5 microwave device with precise temperature control, heating power and time control (USA ), the effect is better than microwave static intermittent extraction, but the equipment and operating procedures required by this technology are more complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) choose rattan tea leaves, dry through natural air drying, and pulverize with a plant pulverizer to obtain rattan tea coarse powder with 20 mesh fineness;

[0033] (2) The rattan tea coarse powder obtained in step (1) is ultrafinely pulverized by a jet mill to obtain rattan tea superfine powder with a particle diameter≤30 μm;

[0034] (3) Carry out first dynamic circulation extraction with step (2) gained rattan tea superfine powder, dynamic circulation extraction for the first time is to carry out in the extraction system that 3 extraction columns are combined in series, choose one extraction column as starting column, add Extract the solvent, start the circulation pump, release the extraction solution into the next extraction column after dynamic circulation extraction, add the extraction solvent into the extraction column, then start the circulation pump, and collect the first extraction solution after extraction through two extraction columns; The extraction solv...

Embodiment 2

[0057] (1) Select rattan tea stems, dry in a 60°C constant temperature drying oven, and pulverize with a plant grinder to obtain rattan tea coarse powder with a fineness of 40 meshes;

[0058] (2) The rattan tea coarse powder obtained in step (1) is ultrafinely pulverized by a fluidized bed jet mill to obtain a rattan tea superfine powder with a particle diameter≤30 μm;

[0059] (3) Carry out dynamic circulation extraction for the first time with step (2) gained rattan tea superfine powder, dynamic circulation extraction for the first time is to carry out in the extraction system that 4 extraction columns are combined in series, choose an extraction column as initial column, add Extract the solvent, start the circulation pump, release the extraction solution after dynamic circulation extraction, enter the next extraction column and add the extraction solvent to the extraction column, then start the circulation pump, and collect the first extraction solution after extraction thr...

Embodiment 3

[0064] (1) Select the mixed material of rattan tea leaves and stems, dry in a constant temperature drying oven at 80°C, and pulverize with a plant pulverizer to obtain rattan tea coarse powder with a fineness of 60 meshes;

[0065] (2) The rattan tea coarse powder obtained in step (1) is ultrafinely pulverized by a rolling ball mill to obtain a rattan tea superfine powder with a particle diameter≤30 μm;

[0066] (3) Carry out first dynamic cycle extraction with step (2) gained rattan tea superfine powder, the first dynamic cycle extraction is to carry out in the extraction system that 5 extraction columns are combined in series, choose an extraction column as initial column, add Extract the solvent, start the circulation pump, release the extraction solution after dynamic circulation extraction, enter the next extraction column and add the extraction solvent to the extraction column, then start the circulation pump, and collect the first extraction solution after extraction thr...

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Abstract

The invention discloses a method for extracting dihydromyricetin from ampelopsis grossedentata and application of dihydromyricetin and belongs to the technical field of traditional Chinese medicine active component extraction methods. Through the method, a superfine grinding technology is used in a raw material pretreatment stage of extraction of dihydromyricetin from ampelopsis grossedentata; superstrong mechanical force is used for breaking cell wall tissues; dihydromyricetin which originally exists in various layers of cells is directly exposed in an extraction solvent during extraction; mass transfer resistance of outward diffusion of dihydromyricetin is greatly reduced; the extraction yield is obviously increased; and the extraction period is shortened. The dynamic and circular extraction method is simple in process and is capable of reducing consumption of the extraction solvent and shortening the extraction period; the superfine grinding pretreatment technology is combined withthe dynamic and circular extraction technology; all the steps cooperate with each other to jointly achieve the effects of shortening the extraction period, increasing the extraction yield, reducing the consumption of the extraction solvent, saving energy and protecting environment; the method is adapted to large-scale industrial production line equipment, is free of pollution to environment, and is easy in industrial operation and application.

Description

technical field [0001] The invention belongs to the technical field of extraction methods for active ingredients of traditional Chinese medicines, and relates to a method for extracting dihydromyricetin, in particular to a method for extracting dihydromyricetin from rattan tea and its application. Background technique [0002] Vine tea, whose scientific name is Ampelopsis grossedentata (Hand-Mazz) W.T.Wang, is a wild woody deciduous vine of the family Vitaceae Michx (Ampelopsis), commonly known as mountain sweet tea and nectar tea. , white hairy monkey, white tea, white tea cake, etc. It has been reported in the literature that vine tea and its extracts have anti-oxidation, anti-tumor, anti-virus, anti-inflammatory, analgesic, broad-spectrum antibacterial, hypoglycemic, hypolipidemic, and liver-protecting effects. Pharmacological experiments have proved that its efficacy is mainly due to flavonoids, especially It is caused by Dihydromyricetin and Myricetin. Chemical compos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D311/32C07D311/40A61P3/10A23L33/105
CPCA23L33/105A23V2002/00A61P3/10C07D311/32C07D311/40A23V2200/328A23V2250/2116
Inventor 黄云祥成龙周青朱孔山安静吕伟
Owner 黄云祥