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Method for onlinely monitoring extraction processes for preparing natural drugs, traditional Chinese medicines and other extracts

A technology of natural medicine and extraction process, which is applied in the direction of material impedance, etc., and can solve the problems of online monitoring indicators for the production of extracts without preparation

Inactive Publication Date: 2018-08-21
王建卫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of preparing the extract, although the conductivity of the extract is occasionally detected, it is only a detection index and has not become an on-line monitoring index for the preparation of the extract, and the extraction process is controlled according to the change of this index.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Preparation of Chinese medicine extracts such as Radix Astragali, Safflower, Peach Kernel, Angelica Sinensis

[0036] Astragalus, safflower, peach kernel, angelica and other Chinese herbal medicines are 10kg in total, add 15 times the amount of solvent to soak for 1 hour and then heat. The conductivity of the extract was measured at 100 min, 110 min, and 120 min after boiling, and the results were 3.98, 5.89, 6.61, 8.32, 10.00, 10.47, 10.96, 11.09, and 11.02, respectively.

[0037] The conductivity of the first extract is less than 5% after 90 minutes, and less than 3% at 110 minutes, so it can be judged according to the preset end point change value for 100 minutes (the change in conductivity within 10 minutes is less than 5%) Or 110 minutes (the change in conductivity within 10 minutes is less than 3%) is the end time of the first extraction process.

Embodiment 2

[0038] Example 2: Preparation of Chinese medicine extracts such as Radix Astragali, Safflower, Peach Kernel, Radix Puerariae, Lycium barbarum, etc.

[0039] Astragalus, safflower, peach kernel, kudzu root, wolfberry and other traditional Chinese medicinal materials are 10kg in total, add 15 times the amount of purified water to soak for 1 hour and then heat. Measure the conductivity of the extract at 90 minutes after boiling, 100 minutes after boiling, and 110 minutes after boiling. The results were 8.32, 15.14, 20.89, 22.39, 23.99, 15.12, 25.70, 25.53, respectively.

[0040] In this extraction, when boiling for 90 minutes, the change in conductivity within 10 minutes is less than 5%, and when boiling for 110 minutes, the change in conductivity within 10 minutes is less than 3%. Therefore, according to the preset end point change value, 90 minutes (the change in conductivity within 10 minutes is less than 5%) or 100 minutes (the change in conductivity within 10 minutes is les...

Embodiment 3

[0042] Embodiment 3: the mensuration of solid content in the extract

[0043] Accurately take some (denoted as N ) ml of the extract in Example 1, and stipulate that the solid content in it is 1 unit. Measure its conductivity. Accurately take its 1 / 2 amount (ie 0.5Nml), then it contains 1 / 2 unit of solid content. Take 1 / 2 of the remaining liquid (ie 0.25 Nml), which contains 0.25 units of solid content. Take 1 / 2 of the remaining liquid (ie 0.125 Nml), which contains 0.125 units of solid content. Take 1 / 2 of the remaining liquid (that is, 0.0625 Nml), which contains 0.0625 solids. For these extracts, use purified water to accurately determine the volume to Nml, shake well, and measure their electrical conductivity respectively. The results are shown in Table 2.

[0044] Table 2: Extracted liquid solid content and conductivity values

[0045] Solid content

1

0.5

0.25

0.125

0.0625

Conductivity

20.755

14.693

11.146

6.873

5.213 ...

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Abstract

The invention relates to a method and an apparatus for onlinely detecting extraction processes for preparing natural drugs, plant extracts, traditional Chinese medicines and other extracts, particularly to a method and an apparatus for onlinely detecting in the extraction with water and different concentrations of ethanol during the extraction and production of Chinese patent medicine, the extraction and production of plant extracts and the drug decoction process of traditional Chinese medicine decoction machines, wherein the apparatus comprises a computer data processing system, a detector and the like. According to the present invention, with the apparatus and the method, the extraction for preparing natural drugs, plant extracts, traditional Chinese medicines and other extracts can be real-timely and onlinely detected, the solid content in the extraction liquid can be predicted, and the basis can be established for the automated control of the extraction for preparing natural drugs,plant extracts, traditional Chinese medicines and other extracts.

Description

technical field [0001] The present invention relates to an on-line monitoring method during the extraction and preparation process of extracts such as natural medicines, plant extracts and traditional Chinese medicines, in particular to a natural medicine, plant extracts and traditional Chinese medicines and other extracts that can be widely applied to different raw material products On-line monitoring method during the shrinkage preparation process. Background technique [0002] The extraction process is a key link in the production of natural medicines, plant extracts and traditional Chinese medicines, and is also the starting point of the preparation process of most natural medicines, plant extracts and traditional Chinese medicines. It is directly related to the quality of finished products and the utilization rate of raw materials. Traditional extraction methods include decoction, maceration, and percolation. In recent years, some new technologies and methods such as su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/02
CPCG01N27/02
Inventor 王建卫
Owner 王建卫
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