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A kind of preparation method of milk thistle oil

A technology of milk thistle oil and milk thistle, applied in the field of milk thistle oil extraction and extraction of milk thistle oil, can solve the problems of low extraction rate of milk thistle oil, high impurity moisture content, low production efficiency, etc. The effect of shortening the operation cycle, improving the extraction efficiency and convenient operation

Inactive Publication Date: 2011-11-30
JIANGSU JIANGDAYUAN ECOLOGICAL BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is no complete supercritical CO2 extraction method of milk thistle seed oil. Chinese patent literature discloses a preparation method of silymarin, the patent publication number is CN1463970A, which involves the extraction of part of milk thistle seed oil, but its The extraction rate of milk thistle oil is low, the production efficiency is extremely low, and there are many impurities in the oil, such as phospholipids, colloids, etc. Therefore, the oil is not pure, and the impurities and moisture content are high.

Method used

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  • A kind of preparation method of milk thistle oil
  • A kind of preparation method of milk thistle oil

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Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of milk thistle oil, which comprises weighing 9 kg of milk thistle seeds, breaking the wall purely at room temperature to obtain a fine powder of 100 mesh, and then carrying out physical property wet granulation with alcohol with a mass concentration percentage of 80-85% to obtain a particle size 16 mesh, the particles are filled in the extraction kettle 1, the supercritical CO2 fluid is introduced, the extraction pressure is 28Mpa, the extraction temperature is 42°C, CO 2 Extract for 1 hour under the condition of fluidization volume 400L / hr; then feed 95% edible ethanol 720g as carrier, and extract for 1 hour; CO2 with silymarin oil 2 The gas flows into the separation tank for secondary separation. The separation pressure of the primary separation tank 2 is 8Mpa and the temperature is 35°C; the separation pressure in the secondary separation tank 3 is 5Mpa and the temperature is 30°C; the separated milk thistle oil enters the rectification Column 4...

Embodiment 2

[0031] A preparation method of milk thistle oil, which comprises weighing 9kg of milk thistle seed powder, breaking the wall purely physically at room temperature to obtain a fine powder of 160 mesh, and then carrying out physical property wet granulation with alcohol with a mass concentration percentage of 80-85% to make granules The density is 18 mesh, the particles are filled in the extraction kettle 1, the supercritical CO2 fluid and the carrier are introduced, the extraction pressure is 32Mpa, the extraction temperature is 55°C, and the CO 2 Extract for 1 hour under the condition of fluidization volume 400L / hr; then feed 720g of edible ethanol with a mass concentration percentage of 95% as a carrier, and extract for another hour; the CO with milk thistle oil 2 The gas flows into the separation tank for secondary separation. The separation pressure of the first separation tank 2 is 10Mpa and the temperature is 35°C; the separation pressure of the second separation tank 2 is...

Embodiment 3

[0034]A preparation method of milk thistle oil, which comprises weighing 9kg of milk thistle seed powder, breaking the wall purely physically at room temperature to obtain a fine powder of 100 mesh, and then carrying out physical property wet granulation with alcohol with a mass concentration percentage of 80-85% to make granules The degree is 16 mesh, and the particles are fully mixed with the filler (wheat bran or rice husk) and then filled in the extraction kettle 1. The mixing ratio is milk thistle seed particles: wheat bran or rice husk=10:1, calculated by weight ratio; Introduce supercritical CO2 fluid and carrier, extraction pressure 28Mpa, extraction temperature 42°C, CO 2 Extract for 1 hour under the condition of fluidization volume 400L / hr; then feed the mass concentration percentage and be 95% edible ethanol 720g as carrier, and extract for 1 hour; the CO with milk thistle oil 2 The gas flows into the separation tank for secondary separation. The separation pressure...

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Abstract

The invention relates to a method for extracting milk thistle oil from milk thistle seeds, belonging to the extraction technology of milk thistle oil, comprising the following steps: (1) selecting milk thistle seed powder as a raw material, and conducting physical properties by alcohol After granulation, mix a certain amount of filler, the mixing ratio is milk thistle seed powder:filler=10:1, (2) the mixed raw material is filled in the extraction kettle, and supercritical CO2 fluid and carrier are introduced , control the extraction pressure and temperature for extraction, (3) control the primary and secondary separation temperature and pressure for separation, (4) control the temperature and pressure of the rectification column for supercritical CO2 rectification to remove impurities and water. The milk thistle oil prepared by the method of the invention is clear and translucent, with high extraction rate and high quality.

Description

technical field [0001] The invention relates to a method for extracting milk thistle oil from milk thistle seeds, in particular to supercritical CO 2 A method for extracting milk thistle oil belongs to the technical field of extracting milk thistle oil. Background technique [0002] Milk thistle (Silybum marianum L, Gareth), also known as milk pheasant and milk thistle, is an excellent medicinal plant and oil plant. Silymarin) (i.e. silymarin) and silybin (Silybin) have various physiological functions such as clearing heat and detoxifying, protecting the liver and gallbladder, protecting the brain, and resisting X-rays. Diseases have good curative effect. In addition to silymarin, milk thistle fruit seeds contain about 20-30% milk thistle oil, which is fragrant and good in color. [0003] Milk thistle oil is a natural, pollution-free green vegetable oil. Long-term consumption can protect the liver, protect the viscera, and improve eyesight. It has been found by research ...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B1/04C11B3/12
Inventor 毛日文曹辉朱惠芬
Owner JIANGSU JIANGDAYUAN ECOLOGICAL BIOLOGICAL TECH
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