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Fast extraction of plant chemical ingredient

An extraction method and phytochemical technology, applied in the field of plant extraction and separation, can solve the problems of low efficiency, in the research and test stage, and short extraction time, so as to improve work efficiency, reduce crushing procedures, and reduce production costs.

Inactive Publication Date: 2007-09-05
THE RES INST OF RESOURCES INSECTS RIRI OF THE CHINESE ACADEMY OF FORESTRY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The extraction methods of phytochemical components are: 1. Conventional solvent extraction method, which uses solvents such as water or ethanol to extract chemical components in plants through leaching or reflux heat extraction or Soxhlet extraction. The disadvantages are that the energy consumption is large, the extraction temperature is high, the extraction rate is low, the extraction speed is slow, and the efficiency is not high, especially those components that are unstable to heat are not applicable; 2. The steam distillation method is mainly used for the extraction of volatile oils , its application range is relatively narrow, and its energy consumption is high; 3. The pressing method is used to extract oil and juice. application
In addition, the high temperature generated during the pressing process will also destroy some heat-sensitive substances, so its application range is limited; 4. The microwave method is an extraction method that combines microwave and traditional solvent extraction. It can selectively Heating the different components in the extracted material to selectively dissolve them from the matrix is ​​fast and efficient, with high microwave heating efficiency, fast temperature rise, high extraction efficiency, low energy consumption, and a wide range of applications. Research and test stage, and cannot be used on substances that are unstable to heat; 5. Ultrasonic method is an extraction method that combines ultrasonic and traditional solvent extraction methods. It has the advantages of high extraction rate and short extraction time, but currently there is no In the research and experimental stage; 6. Supercritical or subcritical fluid extraction is suitable for the extraction of low-molecular, low-polar, lipophilic, low-boiling hydrocarbons, lipid organic compounds, no organic solvent residues, natural plants Volatile components and physiologically active substances are rarely destroyed, but when the active ingredients in the compound contain polar groups and the molecular weight of the compound is large, it is difficult to be extracted

Method used

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  • Fast extraction of plant chemical ingredient

Examples

Experimental program
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Effect test

Embodiment 1

[0014] A. Add petroleum ether solvent in the ratio of 1:1W / V to the material to be extracted, stir for 0.5min at a speed of 10000r / min and normal pressure, and then stir for 0.5min, then stir for 2min, and then stir for 2min, then stir again for 0.5min min, carry out intermittent stirring and extraction in this way, the stirring time is 3 minutes in total, the intermittent time is 2.5 minutes in total, and then take out and filter;

[0015] B. Add petroleum ether solvent into the filter cake at a ratio of 1:3W / V, stir for 2min at a speed of 12000r / min and normal pressure, then stir for 2min, then stir for 0.5min, pause for 0.5min, and stir again for 0.5min , carry out intermittent stirring and extraction in this way, the stirring time is 3 minutes in total, the intermittent time is 2.5 minutes in total, and then take out and filter;

[0016] C, the filter cake repeats the extraction process described in step B again, repeats the extraction 3 times like this, merges each filtra...

Embodiment 2

[0018] A. Add distilled water at a temperature of 50°C to the material to be extracted at a ratio of 1:3W / V, stir and extract for 2 minutes at a speed of 12000r / min and normal pressure, and then stir for 2 minutes, and then stir again for 2 minutes. Extract for 2 minutes, carry out intermittent stirring and extraction in this way, the stirring time is 6 minutes in total, and the intermittent time is 4 minutes in total, then take out and filter;

[0019] B. Add distilled water at a temperature of 50°C to the filter cake at a ratio of 1:1 W / V, stir and extract for 2 minutes at a speed of 10,000 r / min and normal pressure, pause for 2 minutes, stir for another 2 minutes, pause for 2 minutes, and stir and extract again 2min, carry out intermittent stirring and extraction in this way, the stirring time is 6 minutes in total, the intermittent time is 4 minutes in total, and then take out and filter;

[0020] C, filter cake repeats the extraction process described in step B again, rep...

Embodiment 3

[0022] A. Add normal temperature methanol solvent to the material to be extracted at a ratio of 1:2W / V, stir for 1min at a speed of 11000r / min and normal pressure, and then stir for 1min. Perform intermittent stirring and extraction, the stirring time is 3 minutes in total, the intermittent time is 2 minutes in total, and then take out and filter;

[0023] B. Add methanol solvent at room temperature to the filter cake at a ratio of 1:2W / V, stir for 2min at a speed of 11000r / min and normal pressure, then stir for 2min, then stir for 1.5min, then stir for 1.5min, then stir and extract again for 1.5min , carry out intermittent stirring and extraction in this way, the stirring time is 5 minutes in total, the intermittent time is 3.5 minutes in total, and then take out and filter;

[0024] C, the filter cake repeats the extraction process described in step B again, repeats the extraction 4 times like this, merges each filtrate, obtains extractum after concentrating.

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Abstract

A process for fast extracting the chemical components from plant features that when a plant is extracted by immersing it in solvent, it is mechanically stirred at 10000-12000 rpm for 30-60 min.

Description

technical field [0001] The invention relates to a method for extracting chemical components from plants, belonging to the technical field of plant extraction and separation. Background technique [0002] The extraction methods of phytochemical components are: 1. Conventional solvent extraction method, which uses solvents such as water or ethanol to extract chemical components in plants through leaching or reflux heat extraction or Soxhlet extraction. The disadvantages are that the energy consumption is large, the extraction temperature is high, the extraction rate is low, the extraction speed is slow, and the efficiency is not high, especially those components that are unstable to heat are not applicable; 2. The steam distillation method is mainly used for the extraction of volatile oils , its application range is relatively narrow, and its energy consumption is high; 3. The pressing method is used to extract oil and juice. application. In addition, the high temperature ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02
Inventor 段琼芬王有琼孙龙
Owner THE RES INST OF RESOURCES INSECTS RIRI OF THE CHINESE ACADEMY OF FORESTRY
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