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Supercritical liquid extraction method for effective ingredients of natural product and device thereof

A technology of supercritical fluid and active ingredients, which is applied in the direction of medical preparations containing active ingredients, solid solvent extraction, plant/algae/fungus/moss components, etc. It can solve the problems of increased operation, organic solvent residues, cumbersomeness, etc., to achieve Improve efficiency, reduce dosage, and achieve good uniformity

Inactive Publication Date: 2011-09-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although adding an entrainer to the extraction system can increase the solubility and selectivity of polar solutes in supercritical fluids, it increases the complexity of the operation and the problem of residual organic solvents

Method used

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  • Supercritical liquid extraction method for effective ingredients of natural product and device thereof
  • Supercritical liquid extraction method for effective ingredients of natural product and device thereof
  • Supercritical liquid extraction method for effective ingredients of natural product and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: Extract flavonoids from Chinese toon leaves

[0033] Extraction conditions: raw material dosage 100g, extraction pressure 50MPa, extraction temperature 60°C, fluid flow rate 50L / h, extraction time 0.5h, electrostatic field voltage 50kV continuous action, the extraction rate of flavonoids is 65.6%.

Embodiment 2

[0034] Embodiment 2: extract saponin from ginseng

[0035] Extraction conditions: raw material dosage 100g, extraction pressure 10MPa, extraction temperature 32°C, fluid flow rate 2L / h, extraction time 5h, electrostatic field voltage 1kV continuous action, saponin extraction rate 2.63%.

Embodiment 3

[0036] Example 3: Extracting total saponins from Panax notoginseng

[0037] Extraction conditions: raw material dosage 100g, extraction pressure 25MPa, extraction temperature 45°C, fluid flow rate 20L / h, extraction time 3h, electrostatic field voltage 5kV, intermittent action for 5s and 2s off, the extraction rate of total saponins is 82.7%.

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PUM

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Abstract

The invention discloses a method for extracting effective ingredients of a natural product through a supercritical fluid, which is characterized in that the supercritical fluid is synergetic with an electrostatic field to act on the natural product together to perform the extraction and the separation of the effective ingredients. The invention also discloses a device for extracting the effectiveingredients of the natural product through the supercritical fluid, wherein the device comprises an extraction kettle comprising a cover and a material cylinder therein, and is characterized by further comprising a static generator, wherein a central electrode is arranged in the material cylinder, the positive electrode of the static generator is electrically connected with the central electrode,and the negative electrode of the static generator is electrically connected with the side wall of the material cylinder. The method can achieve the extraction of polar components with high extraction efficiency, can avoid the use of an entrainer or reduce the dosage of the entrainer, and reduce the residual contamination caused by extractive matters.

Description

technical field [0001] The invention relates to extraction technology of natural product active ingredients, in particular to a method and device for supercritical fluid extraction of natural product active ingredients. Background technique [0002] The traditional methods for extracting effective components of natural products mainly include: heat reflux extraction and organic solvent extraction, which have the advantages of simple process and easy operation, but there are problems such as long extraction time, low extraction rate, and high energy consumption, especially for organic solvents. The extraction method also has the disadvantages of large solvent consumption, flammable and explosive hazards, and solvent residues in the extract. In order to solve these problems, people have applied supercritical fluid extraction technology to the extraction of active ingredients of natural products in recent years. CO 2 It is non-polar, and this technology is limited to the extr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/00B01D11/02
Inventor 杨日福丘泰球范晓丹刘刚
Owner SOUTH CHINA UNIV OF TECH
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