Extraction method of radix bardanae general flavone

An extraction method and technology of total flavonoids are applied in pharmaceutical formulations, medical preparations containing active ingredients, antidote and other directions, which can solve the problems of high cost of reagent consumables, low product yield, complicated process, etc. The effect of high yield and purity and broad application prospects

Inactive Publication Date: 2017-01-04
FUYANG HUAIBANG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are few techniques for extracting flavonoids from burdock, and most of them hav

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] A method for extracting total flavonoids from burdock root, comprising the following steps:

[0022] Step 1) Clean the fresh burdock root, then heat it in steam at 100°C for 20 minutes, take it out, cool it naturally, cut it into slices with a thickness of 3 mm, then dry it in an oven, pulverize it, and pass it through a 100-mesh sieve to obtain burdock root powder dry powder;

[0023] Step 2) Flatten the dry powder obtained in step 1) into a flat layer with a thickness of 5 mm, and then place it under ultraviolet light for 30 minutes, and the ultraviolet intensity is 3000 mW / cm 2 ;

[0024] Step 3) Soak the dry powder of step 2) in a 6wt% sucrose solution for 30min, collect the precipitate by centrifugation, and place the precipitate in a cool and ventilated place to dry;

[0025] Step 4) Extract the precipitate obtained in step 3) by refluxing with 75% ethanol for three times, each time for 30 minutes, and the ratio of material to liquid is 1g:10...

Example Embodiment

[0030] Example 2

[0031] A method for extracting total flavonoids from burdock root, comprising the following steps:

[0032] Step 1) Clean the fresh burdock root, then place it in 100 ℃ steam for heat treatment for 15 minutes, take it out, cool it naturally, cut it into slices with a thickness of 3 mm, then dry it in an oven, pulverize it, and pass it through a 100-mesh sieve to obtain burdock root powder dry powder;

[0033] Step 2) Flatten the dry powder obtained in step 1) into a flat layer with a thickness of 5mm, and then place it under ultraviolet light for 20 minutes, and the ultraviolet intensity is 3000mW / cm 2 ;

[0034] Step 3) Soak the dry powder of step 2) in a 6wt% sucrose solution for 30min, collect the precipitate by centrifugation, and place the precipitate in a cool and ventilated place to dry;

[0035] Step 4) Extract the precipitate obtained in step 3) by refluxing with 75% ethanol for three times, each time for 30 minutes, and the ratio of material to ...

Example Embodiment

[0040] Example 3

[0041] Take the process of Example 1 as an example to detect the influence of each parameter and condition on the extraction efficiency:

[0042] Groups: control group 1, control group 2, example group 1;

[0043] Control group 1: do not use sucrose soaking and ultraviolet irradiation, other is the same as Example 1;

[0044] Control group 2: not treated with flocculant, treated with activated carbon, the others are the same as in Example 1.

[0045] The determination of total flavonoids in the precipitate is shown in Table 1:

[0046] Table 1

[0047] group Contentmg / g burdock root dry powder purity% Example 1 24.3 33.2 control group 1 14.6 29.7 control group 2 20.8 21.8

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Abstract

The invention belongs to the technical field of plant extraction, and discloses an extraction method of radix bardanae general flavone. The extraction method comprises the following steps of: step 1) drying and pulverizing; step 2) performing ultraviolet treatment; step 3) performing soaking treatment; step 4) performing ethanol extraction; step 5) performing flocculation; and step 6) performing extraction and drying. The extraction method is capable of extracting an effective substance general flavone compound from radix bardanae, greatly improving the yield and the purity, reducing the material cost and increasing the benefits of enterprises and has extensive application prospects.

Description

technical field [0001] The invention belongs to the technical field of plant extraction, and in particular relates to a method for extracting total flavonoids from burdock roots. Background technique [0002] Burdock root, alias Eshi root, rat sticky root, beef vegetable, Campanulaceae, Compositae, Arctium plant root system, traditional Chinese medicine name, spindle-shaped, dark brown skin, wrinkled, functions: dispelling wind-heat, detumescence Toxic treatment wind poison face swelling. Li Shizhen of the Ming Dynasty called it "cut the seedlings and wash them as vegetables, take the roots and cook them, and expose them to preserves, saying that they are beneficial to people." It is called "long-term service, making light of one's life and being resistant to old age". Song Su Song once described burdock in this way: "The leaves are as long as taro, and they are brown like grape cores, and the shell is as small and thorny as chestnut wood." When Japan occupied Taiwan, loc...

Claims

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Application Information

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IPC IPC(8): A61K36/28A61P3/10A61P3/06A61P39/06
CPCA61K36/28A61K2236/10A61K2236/15A61K2236/17A61K2236/333A61K2236/39A61K2236/51
Inventor 朱敏强
Owner FUYANG HUAIBANG MACHINERY
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