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Method for preparing fructus amomi volatile oil

A technology of volatile oil and amomum, which is applied in the directions of essential oil/fragrance, fat production, solid solvent extraction, etc., can solve the problems of difficult industrial scale production, low extraction rate, low cost, etc., to maintain original fragrance, high extraction efficiency, The effect of short preparation cycle

Active Publication Date: 2014-01-29
JING BRAND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is exactly aimed at extracting Amomum volatile oil extraction rate low with traditional process at present, product quality is low, refining difficulty and utilizing supercritical CO 2 The cost of the extraction method is high, and it is difficult to carry out the problem of industrial scale production. A method for preparing Amomum volatile oil by using the subcritical fluid 1,1,1,2,-tetrafluoroethane (R134a) extraction technology is provided. The method prepared by the present invention Amomum volatile oil has high yield, low cost and good appearance, and is suitable for industrialized large-scale production of amomum volatile oil

Method used

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  • Method for preparing fructus amomi volatile oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Raw material handling

[0023] Get dry Amomum medicinal material 50kg, detect wherein the content of Amomum volatile oil is 5.8%, it is pulverized into 20 order coarse powder, puts into 100 order filter bag, then filter bag is packed in the material column of subcritical extraction kettle ;

[0024] (2) Subcritical extraction

[0025] Add 500L 1,1,1,2-tetrafluoroethane into the extraction kettle as the extractant, extract for 40 minutes at a pressure of 1.1Mpa and a temperature of 30°C, put the extract into a separation kettle, and extract at a pressure of 0.1Mpa Next, the extraction agent is evaporated and recovered and used mechanically, and the remaining liquid is the Amomum volatile oil extract; repeat the above extraction process 3 times, and combine each Amomum volatile oil extract;

[0026] (3) Oil-water separation

[0027] The extract of Amomum volatile oil obtained in step (2) was left to stand for stratification, and oil-water separation was carried out...

Embodiment 2

[0030] (1) Raw material handling

[0031] Get 50kg of dried Amomum medicinal material, detect wherein the volatile oil content of Amomum is 6.0%, pulverize it into a 50-mesh coarse powder, put it into a 100-mesh filter bag, and then put the filter bag into the material column of the subcritical extraction kettle;

[0032] (2) Subcritical extraction

[0033] Add 200L 1,1,1,2-tetrafluoroethane into the extraction kettle as the extractant, extract for 60 minutes at a pressure of 0.3Mpa and a temperature of 40°C, put the extract into a separation kettle, and extract at a pressure of 0.06Mpa Next, the extraction agent is evaporated and recovered and used mechanically, and the remaining liquid is the Amomum volatile oil extract; repeat the above extraction process 5 times, and combine each Amomum volatile oil extract;

[0034] (3) Oil-water separation

[0035] The extract of Amomum volatile oil obtained in step (2) was allowed to stand for stratification, and then oil-water separa...

Embodiment 3

[0037] (1) Raw material handling

[0038] Get 50kg of dry Amomum medicinal material, detect wherein the Amomum volatile oil content is 6.4%, be pulverized into 40 mesh coarse powder, put into 100 mesh filter bag, then filter bag is packed in the material column of subcritical extraction kettle;

[0039] (2) Subcritical extraction

[0040] Add 1000L 1,1,1,2-tetrafluoroethane into the extraction kettle as the extractant, extract for 60 minutes at a pressure of 1.6Mpa and a temperature of 20°C, put the extract in a separation kettle, and extract at a pressure of 0.04Mpa Next, the extraction agent is evaporated and recycled, and the remaining liquid is the Amomum volatile oil extract; repeat the above extraction process 2 times, and combine each Amomum volatile oil extract;

[0041] (3) Oil-water separation

[0042] The extract of Amomum volatile oil obtained in step (2) was left to stand for stratification, and oil-water separation was carried out to obtain 3.0 L of Amomum vola...

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Abstract

The invention discloses a method for preparing fructus amomi volatile oil. The method comprises the following steps of taking dry fructus amomi medical material, and crushing into crude powder of 20 meshes-50 meshes after weighing, placing into a 100-mesh filter bag, and filling the filter bag into a material column of a subcritical extraction kettle; adding 1,1,1,2-tetrafluoroethane which is 4-20 times the weight of the fructus amomi into the extraction kettle as an extracting agent, extracting for 20 minutes-60 minutes under the conditions that the pressure is 0.3-1.6 Mpa and temperature is 20 DEG C-50 DEG C, placing extracting liquor into a separating kettle, evaporating and recycling the extracting agent for use under pressure of 0.04-0.1 Mpa, wherein residual liquor is fructus amomi volatile oil extracting liquor; repeating the extracting process twice-five times, combining and layering the fructus amomi volatile oil extracting liquor each time, and then carrying out oil-water separation, wherein the obtained oil phase is fructus amomi volatile oil, and yield of the fructus amomi volatile oil is not less than 90%. The fructus amomi volatile oil prepared by the method is high in yield, low in cost, good in perception and suitable for large-scale industrial production of the fructus amomi volatile oil.

Description

technical field [0001] The invention belongs to a preparation method of a traditional Chinese medicine extract, in particular to a method for preparing amomum volatile oil by using subcritical fluid extraction technology. Background technique [0002] Amomum villosum is the dry mature fruit of Amomum villosum Lour, Amomum villosum Lour. var. xanthioides T. L. Wu et Senjen, or Amomum longiligulare T.L.Wu. Harvest when the fruit is ripe in summer and autumn, and dry in the sun or at low temperature. Yangchun sand produced in Yangchun County, Guangdong is the most famous, known as the authentic southern medicine Amomum. Amomum is pungent and warm in nature, and returns to the spleen, stomach, and kidney channels. It has the effects of dispelling dampness and appetizing, warming the spleen and stopping diarrhea, regulating qi and calming fetus. Diarrhea, nausea of ​​pregnancy, restless fetal movement, etc. Amomum mainly contains volatile oil, but the volatile oil is a mixture...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02B01D11/02
Inventor 胡力飞陈志元赵国峰胡辉杨跃军
Owner JING BRAND
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