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Method for quickly extracting effective ingredient from plant

A plant active ingredient and plant technology, which is applied in the directions of medical preparations containing active ingredients, plant/algae/fungus/moss ingredients, plant raw materials, etc. Leaching effect, large one-time investment and other problems, to achieve the effect of less impurities, increased relative content, and less energy consumption

Inactive Publication Date: 2006-02-15
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The equipment used in supercritical liquid extraction technology is high-pressure equipment, which requires a large one-time investment and high operating costs. In addition, it is difficult to extract substances with strong polarity and large molecular mass.
Ultrasonic extraction technology has high requirements on the thickness of the container wall and the position in the container, otherwise it will affect the leaching effect of medicinal materials
In the extraction of microwave plants, the amount of solvent can be significantly reduced, the extraction time can be shortened, and the yield can be increased, but special equipment is required

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: Put water in a high-pressure container, heat it to generate water vapor, weigh an appropriate amount of berry plants, suspend them in the container, and steam them for 1-10 minutes at normal pressure and at a temperature of 98°C. minute. Heat and reflux extraction with water three times for 2.0 hours, 1.5 hours, and 1.0 hour respectively, filter to remove residue, combine extracts, add three times the amount of absolute ethanol to obtain polysaccharide precipitates, and concentrate the filtrate to obtain extracts.

Embodiment 2

[0011] Example 2: Put water in a high-pressure container, heat it to generate water vapor, weigh an appropriate amount of leafy plants, suspend them in the container, and steam them for 10 minutes at a pressure of 0.15Mpa and a temperature of 126°C. -20 minutes. Take out the medicinal materials and chop them up, heat and reflux with water to extract three times for 2.5 hours, 2.0 hours, and 1.5 hours respectively, filter to remove the residue, combine the extracts, and concentrate to obtain the extract.

Embodiment 3

[0012] Example 3: Put water in a high-pressure container, heat it to generate water vapor, weigh an appropriate amount of rhizome plants, suspend them in the container, and steam them for 20 minutes at a pressure of 0.29Mpa and a temperature of 126°C. -30 minutes. Take out the medicinal materials and chop them up, heat and reflux with absolute ethanol to extract three times for 3.0 hours, 2.5 hours, and 2.0 hours respectively, filter to remove the residue, combine the extracts, and concentrate to obtain the extract.

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PUM

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Abstract

Disclosed is a method for quickly extracting effective ingredient from plant, which comprises cleaning the plants, loading water into high-pressure containers, heating to generate water vapor, steaming the plants in high-pressure containers for 1-30 minutes, chopping the plants into crude slices, or extracting three times by heating solvent for backflow, merging the extracts, concentrating the extract.

Description

technical field [0001] The invention relates to a method for extracting plant effective components. Background technique [0002] Plant active ingredients include hundreds of flavonoids, polyphenols, terpenoids, etc. The main characteristics of their molecules are: relatively low molecular weight, ranging from several hundred to several thousand; they have certain polarity and are soluble in many organic solvents. The traditional plant extraction method is to extract the natural active ingredients by rinsing and pulverizing the raw materials or using water or organic solvents to stir and reflux under certain conditions. Its extraction theory is based on the theory of penetration and diffusion. These active ingredients are mainly present in the vacuoles of the cells. To extract the active ingredients, the solvent used for extraction must first penetrate the cell wall, cell membrane, cytoplasm, and tonoplast membrane of the cells of the Chinese herbal medicine and then enter ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/00
Inventor 杨云裳李春雷张应鹏
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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