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Method for extracting low-pesticide-residue ginsenoside from ginsengs

A technology for pesticide residues ginsenosides and ginsenosides is applied in the field of extracting ginsenosides with low pesticide residues. Loss, manageable effects

Active Publication Date: 2014-02-05
HUNAN NUSTREETCARAX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] However, the extracted ginsenosides must achieve low pesticide residues and high content of ginsenosides, and most of them have many shortcomings in industrial production, such as cumbersome operations, serious environmental pollution, low yield, excessive pesticide residues, etc.; It shows that the existing technical research is still in its infancy and cannot really reach the level of industrialized mass production and marketing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] 1. Take 500kg of ginseng fibrous roots or branch roots (the content of total ginsenosides is 6.95% by UV detection), cut into 2-3cm sections;

[0067] 2. Put the ginseng section into the extraction tank, add 5000kg of ice water at 0°C (equivalent to 10 times the weight of ginseng), extract for 10 hours, filter, collect the filtrate, and add 3000kg of ice water (equivalent to 10 times the weight of ginseng) to the filter residue. 6 times) for the second extraction, the extraction time is 10h, collect the filtrate, and then add 3000kg ice water (equivalent to 6 times the weight of ginseng) for the third extraction, the extraction time is 10h, filter, and collect the filtrate , combined three filtrates;

[0068] 3. Concentration: Concentrate the filtrate obtained in step 2 under reduced pressure in vacuum, and concentrate it to 10 degrees Baume under the conditions of vacuum -0.1Mpa and concentration temperature of 60°C;

[0069] 4. Extraction: Add an equal volume of wate...

Embodiment 2

[0074] 1. Take 500kg of ginseng fibrous roots or branch roots (the content of total ginsenosides is 6.81% as detected by UV), and cut them into 2-3cm sections;

[0075] 2. Put the ginseng section into the extraction tank, add 4500kg of ice water at 0°C (equivalent to 9 times the weight of ginseng), extract for 11 hours, and filter with suction. Add 3000kg of ice water to the filter residue for the second and third times respectively. Extraction, leaching under the same conditions for 11h, and combining three extracts;

[0076] 3. Concentration: Concentrate the extract under vacuum pressure, vacuum range -0.08MPa, temperature 60°C, and concentrate to 12 Baume degrees;

[0077] 4. Extraction: add an equal volume of water-saturated n-butanol to the concentrated solution for extraction, separate the water phase and n-butanol phase, add an equal volume of n-butanol to the water phase for separation and extraction, separate the two phases, and combine them twice before and after Th...

Embodiment 3

[0082] 1. Take 500kg of ginseng fibrous roots or branch roots (the content of total ginsenosides is 6.97% by UV detection), cut into 2-3cm sections;

[0083] 2. Put the ginseng section into the extraction tank, add 4000kg of ice water at 0°C (equivalent to 8 times the weight of ginseng), extract for 12 hours, filter, collect the filtrate, and add 3000kg of ice water to the filter residue (equivalent to 8 times the weight of ginseng) 6 times) for the second extraction, the extraction time is 10h, collect the filtrate, then add 2500kg of ice water (equivalent to 5 times the weight of ginseng) for the third extraction, the extraction time is 10h, filter, and collect the filtrate , combined three filtrates;

[0084] 3. Concentration: Concentrate the filtrate obtained in step 2 under reduced pressure in vacuum, and concentrate it to 10 degrees Baume under the conditions of vacuum -0.09Mpa and concentration temperature of 50°C;

[0085] 4. Extraction: add an equal volume of water-s...

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Abstract

The invention relates to a method for extracting low-pesticide-residue ginsenoside from ginsengs. The method comprises the following steps of leaching the ginsengs for 3-4 times in cold water, wherein each leaching lasts for 8-12 hours; combining leaching liquids, carrying out concentration, solvent extraction and concentration, enabling the leaching liquids to pass through a macroporous resin column, and flushing by utilizing water; carrying out ethanol elution, collecting the eluted liquid, and drying to obtain the low-pesticide-residue ginsenoside. The production method of the ginsenoside comprises two purification processes, the preliminary purification is extraction, and the resin is highly purified; partial impurities are removed in the extraction process, so that the high purification efficiency is improved.

Description

technical field [0001] The invention relates to a method for extracting ginsenosides, in particular to a method for extracting low-residue ginsenosides from ginseng. Background technique [0002] Ginseng (Panax ginseng C.A.Mey.) is an Araliaceae plant. Panax means longevity and cures all diseases. Its application history can be traced back to more than 2,000 years ago. The earliest pharmacy monograph "Shen Nong's Materia Medica" in China has a detailed discussion on the medicinal value of ginseng. It enjoys the reputation of "the king of all herbs and the first of all medicines". [0003] Modern pharmacological research results show that ginseng can effectively regulate the central nervous system, improve the contractility and frequency of the heart, stimulate the endocrine system, lower blood sugar, improve sexual function, promote the secretion of digestive juice, enhance human immunity, and resist the proliferation and Transfer, strengthen the hematopoietic function of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/258A61K125/00
Inventor 张宝堂谭家忠李芳
Owner HUNAN NUSTREETCARAX
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