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Method for removing propamocarb in araliaceae saponin extract

A technology of extract and propamocarb, which is applied in the field of removing propamocarb in the saponin extract of Araliaceae plants, can solve the problems of low yield, high toxicity, and difficulty in opening the door to the international market, and achieve removal efficiency High, high yield effect

Active Publication Date: 2016-07-20
广东青云山药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technologies in the existing documents or patents in our country basically revolve around organochlorine pesticide residues and organophosphorus pesticide residues. These two types of pesticides are highly toxic, and their solubility (polarity) is different from the properties of ginsenosides, the active ingredients in ginseng extracts. are different and therefore easier to remove
However, propamocarb has strong water solubility, which is similar to that of ginsenosides, and is difficult to remove by conventional methods. Related patents and documents are very rare. Therefore, it is difficult to produce high-standard (low residue) ginseng extracts, with high cost and low yield. Open the door to international

Method used

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  • Method for removing propamocarb in araliaceae saponin extract

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Experimental program
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Effect test

Embodiment 1

[0024] Take by weighing 50g ginsenoside extract samples (purchased in Ningbo Jin Ai Nong Biotechnology Co., Ltd.), dissolve completely with 2 times the amount of water, add 0.3% magnesium oxide powder of times the amount, settle after fully stirring, supernatant filter, remove most pesticide residues. Slowly add acetic acid test solution (aqueous solution with a mass fraction of acetic acid of 5%) to the supernatant, adjust the pH to 2-5, add 1 / 3 times the volume of acetone to extract the ginsenoside solution multiple times, the number of extractions is 3 times, organic Discard after concentrating and reclaiming the organic solvent, collect the mother liquor, which is the water phase, take the water phase and concentrate and spray dry to obtain the ginsenoside extract from propamocarb (saponin yield 80%).

Embodiment 2

[0026] Take by weighing 50g ginsenoside extract samples (purchased in Ningbo Jin Ai Nong Biotechnology Co., Ltd.), dissolve completely with 6 times the amount of water, add 0.3% magnesium oxide powder of times the amount, settle after fully stirring, supernatant filter, remove most pesticide residues. Slowly add acetic acid test solution (aqueous solution with a mass fraction of acetic acid of 5%) to the supernatant, adjust the pH to 2-5, add 1 / 3 times the volume of acetone to extract the ginsenoside solution multiple times, the number of extractions is 3 times, organic Discard after concentrating and reclaiming the organic solvent, collect the mother liquor, which is the water phase, take the water phase and concentrate and spray dry to obtain the ginsenoside extract from propamocarb (saponin yield 70%).

Embodiment 3

[0028] Take by weighing 50g ginsenoside extract samples (purchased in Ningbo Jin Ai Nong Biotechnology Co., Ltd.), dissolve completely with 2 times the amount of water, add 0.5% magnesium oxide powder of times the amount, settle after fully stirring, supernatant filter, remove most pesticide residues. Slowly add acetic acid test solution (aqueous solution with acetic acid mass fraction of 5%) to the supernatant, adjust the pH to 2-5, add 1 / 3 times the volume of acetone to extract the ginsenoside solution multiple times, the number of extractions is 4 times, organic Discard after concentrating and recovering the organic solvent, collect the mother liquor, which is the aqueous phase, take the aqueous phase and concentrate and spray dry to obtain the ginsenoside extract from propamocarb (saponin yield 60%).

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Abstract

The invention discloses a method for removing propamocarb in araliaceae saponin extract. The method sequentially comprises the following steps that 1, the araliaceae saponin extract is taken and completely dissolved in water of 2-8 folds, an adsorption agent of 0.3%-0.8% fold is added, sedimentation is carried out after full stirring, and supernate is filtered; 2, an acetic acid test solution is slowly added dropwise to the supernate filtered in the step 1, the pH value is adjusted to range from 2 to 5, an organic solvent of 1 / 3 to 2 / 3 of the volume is added for extracting many times, the number of times of extracting ranges from 2 to 8, an organic phase is abandoned after an organic solvent is concentrated and recycled, and a water phase is collected; 3, the water phase obtained in the step 2 is taken to be concentrated and spray-dried or freeze-dried, and ginsenoside extract with propamocarb removed is obtained. According to the method, an adsorption-extraction combined method is adopted for gradually removing propamocarb pesticide residues in the araliaceae saponin extract according to the structure characteristics of propamocarb. By means of the technology, the existing residue removing efficiency is greatly improved, cost is reduced, and the method is suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of removing residual chemical components in plant extracts, in particular to a method for removing propamocarb in Araliaceae plant saponin extracts. Background technique [0002] At present, the international market is increasingly concerned about the safety of food, health products and medical supplies, and pesticide residues are the first to bear the brunt. Therefore, countries have increased the limit standards of pesticide residues. The technologies in the existing documents or patents in our country basically revolve around organochlorine pesticide residues and organophosphorus pesticide residues. These two types of pesticides are highly toxic, and their solubility (polarity) is different from that of the active ingredient ginsenoside in ginseng extracts. Not the same and therefore easier to remove. However, propamocarb has strong water solubility and is similar to ginsenoside in solubility, so it is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J17/00C07G3/00
CPCC07G3/00C07J17/005
Inventor 陈曙平沈洪宁谢敏杰钟祥禄徐文韬彭小兰
Owner 广东青云山药业有限公司
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