Method for sub-critically extracting folium artemisiae argyi essential oil

A kind of artemisia argyi essential oil, subcritical technology, applied in the direction of essential oil/spice, fat production, etc., can solve the problems of low extraction rate, large loss of effective components, etc., achieve recovery rate and effective component content improvement, reduce production costs, and be easy to recover. Effect

Pending Publication Date: 2017-06-13
梅跃进 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a method for subcritical extraction of Artemisia argyi essential oil, so as to solve the technical problems of large loss of active ingredients and low extraction rate in the existing extraction technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Carry out cold pressing of Artemisia argyi raw materials into cakes (the weight of the essential oil containing Artemisia argyi is detected to be 1.1%), and crush the cakes to 60-100 meshes, take 100kg of pulverized raw materials, put them into the extraction kettle, After evacuating to below 150Pa, exhaust the air in the kettle, then inject tetrafluoroethane liquid from the storage tank into the extraction kettle to submerge the raw materials, and extract under static pressure at a temperature of 40°C and a pressure of 0.8Mpa for 30 minutes; The pressure in the kettle is reduced to 0.6MPa, and the air compressor is turned on for dynamic extraction, so that the tetrafluoroethane liquid is circulated and extracted in the extraction kettle and the separation kettle for 20 minutes; the tetrafluoroethane and the extract in the extraction kettle are passed into the separation kettle , and then in the separation tank at a temperature of 60 ° C and a pressure of 0.6 MPa, th...

Embodiment 2

[0024] (1) Carry out cold pressing of Artemisia argyi raw materials into cakes (the weight of the essential oil containing Artemisia argyi is detected to be 1.1%), and crush the cakes to 60-100 meshes, take 100kg of pulverized raw materials, put them into the extraction kettle, After evacuating to below 150Pa, exhaust the air in the kettle, then inject tetrafluoroethane liquid from the storage tank into the extraction kettle to submerge the raw materials, and extract under static pressure at a temperature of 60°C and a pressure of 1Mpa for 30 minutes; the extraction kettle The tetrafluoroethane and the extract are passed into the separation kettle, and then in the separation kettle, the temperature is 70°C and the pressure is 0.8MPa, and the temperature is raised and the pressure is 0.8MPa. Anhydrous sodium sulfate obtains 0.72kg Folium Artemisiae Argyi Essential Oil I to moisture content 1.2%, and the extraction rate of Folium Artemisiae Argyi Essential Oil is 80.9%, and where...

Embodiment 3

[0026](1) Carry out cold pressing of Artemisia argyi raw materials into cakes (the weight of the essential oil containing Artemisia argyi is detected to be 1.1%), and crush the cakes to 60-100 meshes, take 100kg of pulverized raw materials, put them into the extraction kettle, After evacuating to below 150Pa, exhaust the air in the kettle, then inject tetrafluoroethane liquid from the storage tank into the extraction kettle to submerge the raw materials, and extract under static pressure at a temperature of 50°C and a pressure of 1Mpa for 30 minutes; the extraction kettle The medium pressure is reduced to 0.7MPa, and the air compressor is turned on for dynamic extraction, so that the tetrafluoroethane liquid is circulated and extracted in the extraction kettle and the separation kettle for 20 minutes; the tetrafluoroethane and the extract in the extraction kettle are passed into the separation kettle, Then, in the separation kettle, under the conditions of a temperature of 60 °...

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Abstract

The invention discloses a method for sub-critically extracting folium artemisiae argyi essential oil. The method comprises the following steps: (1) crushing a folium artemisiae argyi cake, putting into an extraction kettle under a vacuum environment, adding an extraction agent, namely tetrafluoroethane, into the kettle, and extracting for the first time under the conditions that the temperature is 40-60 DEG C and the pressure is 0.8-1Mpa; (2) extracting material residues for the second time in the extraction kettle with 80% ethyl alcohol under the conditions that the temperature is 40-60 DEG C and the pressure is 0.8-1Mpa; and (3) reducing pressure and concentrating the extract liquor acquired in the step (2) under the conditions that the temperature is 40-60 DEG C and the pressure is 0.09-0.095Mpa till the ethanol content is less than 5%, thereby acquiring the folium artemisiae argyi essential oil. The method disclosed by the invention can solve the technical problems of large loss of effective ingredients and low extraction efficiency of the present extraction technique.

Description

technical field [0001] The invention relates to the technical field of extracting mugwort essential oil, in particular to a method for subcritically extracting mugwort essential oil. Background technique [0002] Artemisia mugwort has a special fragrance, and it can be made into fragrant pillows, and it also has the effect of sleeping, helping sleep and relieving fatigue. Boil mugwort leaves juice, then dilute it with water and take a bath, which can remove small red bumps on the body. In addition, it can repel mosquitoes and flies, sterilize and prevent diseases. Mugwort is also used in the "moxibustion" of acupuncture and moxibustion. "Moxibustion" is to smoke and burn acupuncture points after lighting the wormwood. Soaking feet with mugwort has many health benefits. Because it has the function of curing diseases, especially after it is collected in the dew on May Day, the medicinal effect is the best. Mugwort is also an edible plant. Wormwood can be used as mugwort te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
Inventor 梅跃进姜沁成
Owner 梅跃进
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