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Extraction method of ginseng extractive without pesticide residues

A technology for extracting ginseng and pesticide residues, which can be used in pharmaceutical formulations, plant raw materials, and medical preparations containing active ingredients, etc., which can solve the problems of expensive reagents, high equipment costs, and rising costs, and achieve increased space and scope with simple methods , easy-to-operate effect

Active Publication Date: 2013-03-13
康美新开河(吉林)药业有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

If one wants to obtain ginseng extracts with low pesticide residues or no pesticide residues, generally people will choose raw ginseng with less pesticide residues for extraction, which causes difficulties in raw material selection and increases in cost
[0003] Existing methods for removing pesticide residues include supercritical extraction and other methods. These methods are complex in operation, high in equipment costs, expensive in reagents, and the final effect of removing pesticide residues is not particularly perfect. Therefore, a simple, easy-to-operate, and capable of achieving pesticide The method of extracting ginseng with zero residue and high purity of ginseng extract, on the one hand, broadens the selection range of raw ginseng, and on the other hand, saves costs

Method used

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Embodiment

[0015] In the present invention, ADS-4 is the non-polar resin produced by Hecheng Resin Factory in Nankai, Tianjin, with a specific surface area of ​​1000m 2 / g, the average pore diameter is 1.2-1.4nm, and the molecular weight of the adsorbable substance is ≤350. 666. The detection of DDT shall be carried out according to GB / T 5009.19. The detection of pentachloronitrobenzene shall be carried out according to GB / T 5009.136.

[0016] The extraction method of the ginseng extract without pesticide residues comprises the following steps:

[0017] 1) One-time extraction: crush the dried ginseng, add it to a multifunctional heat reflux extraction tank, add 70%~75% ethanol 5 times the weight of ginseng to it, extract for 2 hours, remove the primary extract, and leave the primary ginseng residue ;

[0018] 2) Secondary extraction: add 75%~85% ethanol 4 times the weight of ginseng to the primary ginseng residue, extract for 2.5 hours, remove the secondary extract, and leave the seco...

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PUM

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Abstract

The invention discloses an extraction method of a ginseng extractive without pesticide residues, comprising the following steps of: extracting ginseng by ethanol for three times; carrying out ultra-filtering by ceramic; and utilizing an ADS-4 to sieve adsorbing resin to adsorb to completely remove the pesticide residues so as to obtain the ginseng extractive without the pesticide residues, wherein the content of ginseng total saponin is more than 86%.

Description

technical field [0001] The invention relates to a treatment method for medicinal plants, in particular to a method for extracting ginseng extract without pesticide residues. Background technique [0002] Ginsenoside is the main active ingredient of ginseng, which has the main physiological activity of ginseng. Common ginseng extract is extracted with ethanol, concentrated to no alcohol, and dried. However, in the process of ginseng cultivation, due to the variable amount and types of pesticides used, there are more or less pesticide residues in ginseng. At present, the content of organochlorine pesticide residues in ginseng in China is about 3-4 mg / kg. If one wants to obtain ginseng extracts with low pesticide residues or no pesticide residues, generally people will choose raw ginseng with less pesticide residues for extraction, which causes difficulties in raw material selection and increases in cost. [0003] Existing methods for removing pesticide residues include supe...

Claims

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Application Information

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IPC IPC(8): A61K36/258
Inventor 李学军张志东陈丽
Owner 康美新开河(吉林)药业有限公司
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