Extraction method of agilawood essential oil

A kind of technology of agarwood essential oil and extraction method, which is applied in the direction of essential oil/fragrance, fat production, etc., can solve the problems of inability to realize agarwood essential oil, etc., and achieve the effect of increased extraction rate, uniform and clear color, and strong smell

Active Publication Date: 2014-03-12
AGATE PERFUME MINGGUANG
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

In these two articles, the research on the total extraction process and component analysis of the fat-soluble components in Agarwood are emphasized, and the application of supercritical CO 2 Extraction technology to separate high-quality agarwood essential oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The agarwood medicinal materials are pulverized into raw material powder with an average particle size of 10 meshes, and 20 g of the pulverized raw material powder is mixed with 0.04 g of ethanol to obtain a raw material solution; The extraction pressure was 7MPa, the extraction temperature was 31℃, and the extraction time was 0.5h; the supercritical carbon dioxide fluid dissolved with the extract was separated into the rectification column through the pressure reducing valve, and the rectification column pressure was 7MPa and the temperature was 15 ℃, the rectification time is 0.5h; the agarwood essential oil and ethanol are separated into the separator with the carbon dioxide fluid through the pressure reducing valve, the separation pressure is 5MPa, the separation temperature is 15℃, and the separation time is 0.5h. Under reduced pressure, 3.3 g of agarwood essential oil was obtained, the extraction yield of agarwood essential oil was 16.5%, and the obtained essential...

Embodiment 2

[0027] The agarwood medicinal materials are pulverized into raw material powder with an average particle size of 80 meshes, and 100 g of the pulverized raw material powder is mixed with 10 g of 95% ethanol to obtain a raw material solution; the raw material solution is introduced into the extraction kettle, and the supercritical carbon dioxide fluid is input into the extraction kettle, The extraction was carried out at an extraction pressure of 45 MPa and an extraction temperature of 80 °C, and the extraction time was 5 h; the supercritical carbon dioxide fluid with the extract dissolved in it entered the rectifying column for separation through a pressure reducing valve. The pressure of the rectifying column was 35 MPa and the temperature was 75 ℃, the rectification time is 5h; the agarwood essential oil and ethanol enter the separator with the carbon dioxide fluid through the pressure reducing valve for separation, the separation pressure is 25MPa, the separation temperature i...

Embodiment 3

[0029] The agarwood medicinal material is pulverized into a raw material powder with an average particle size of 20 meshes, and 200 g of the pulverized raw material powder is mixed with 1 g of 95% ethanol to obtain a raw material solution; the raw material solution is introduced into the extraction kettle, and the supercritical carbon dioxide fluid is input into the extraction kettle, The extraction was carried out at an extraction pressure of 15MPa and an extraction temperature of 40°C, and the extraction time was 2.5h; the supercritical carbon dioxide fluid with the extracts dissolved was passed through a pressure reducing valve into the rectification column for separation. The pressure of the rectification column was 15MPa and the temperature was 30℃, rectification time is 2h; Agarwood essential oil and ethanol enter the separator with carbon dioxide fluid through the pressure reducing valve for separation, the separation pressure is 10MPa, the separation temperature is 30℃, ...

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Abstract

The invention discloses an extraction method of agilawood essential oil. Ethanol is selected as an entrainer for supercritical carbon dioxide extraction of the agilawood essential oil, and a supercritical carbon dioxide extraction technology is combined with a rectification technology, so that the solubility and the dissolution range of an extracting solvent are effectively improved, and the extraction rate of the agilawood essential oil is increased. Therefore, the obtained agilawood essential oil is even and clear in color and luster, and strong in smell.

Description

technical field [0001] The invention belongs to a method for extracting essential oil, in particular to a method for extracting agarwood essential oil by combining supercritical CO2 extraction and rectification technology. Background technique [0002] Agarwood is white wood incense Aquilaria sinensis (Lour) Gilg resin-containing wood is a variety included in the "Chinese Pharmacopoeia" and is a commonly used qi-regulating drug in clinical practice. Its taste is pungent, bitter, warm in nature, and it belongs to the spleen, stomach, and kidney meridians, and has the functions of lowering qi, warming the middle, and warming the kidney to help yang. Indications: chest and abdomen distention, pain, cold stomach, vomiting, hiccup, and dyspnea due to kidney deficiency. Agarwood contains a high amount of volatile oil and has a strong aroma. It is the main component of the volatile medicinal effect of agarwood. The amount of volatile oil contained in it is directly related to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
Inventor 胡云福
Owner AGATE PERFUME MINGGUANG
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