Chrysanthemum absolute oil extracted by using subcritical fluid low-temperature process

A subcritical fluid, low temperature process technology, applied in the direction of essential oils/spices, fat production, etc., can solve the problems of high extraction temperature, loss of aroma components, affecting product quality, etc., and achieve the effect of high strength and realistic aroma

Inactive Publication Date: 2013-03-20
YUNNAN REASCEND TOBACCO TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of these fragrance-type Compositae plants are limited to medicinal research and commercial production of essential oils, and most of them use traditional proces

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The present invention utilizes subcritical fluid to extract the process of chrysanthemum absolute oil at low temperature as follows: use chrysanthemum as raw material, put it in the extraction tank, seal the extraction cover, open the vacuum pump and start the solenoid valve, and turn off the vacuum pump when the reading of the vacuum gauge is greater than 0.07MPa and solenoid valve start button. Open the injection valve to add solvent, subcritical dimethyl ether fluid is used as the main solvent, and there may be an appropriate amount of entrainer. The entrainer that can be used is one or more mixtures of propylene glycol, glycerin, and sorbitol. When the amount of solvent added reaches 2 to 10 times the weight of the chrysanthemum raw material, close the injection valve and start the reflux extraction timing. The extraction conditions are: temperature -10°C-30°C, pressure 0.1-0.9MPa, time 1-5 hours. After the extraction is finished, the extract is put into a separati...

Embodiment 2

[0011] Use 5000g tribute chrysanthemum as raw material, put it in the extraction tank, seal the extraction cover, open the vacuum pump and start the solenoid valve, and turn off the start button of the vacuum pump and solenoid valve when the reading of the vacuum gauge is greater than 0.07MPa. Open the injection valve to add solvent, using subcritical dimethyl ether fluid as solvent. When the amount of solvent added reaches 10 times the weight of the chrysanthemum raw material, close the injection valve and start the reflux extraction timing. The extraction conditions are: temperature 5°C-25°C, pressure 0.3-0.6MPa, time 4 hours. After the extraction is finished, the extract is put into a separation tank, the dimethyl ether solvent is decompressed and vaporized, and separated from the crude extract of chrysanthemum. Then turn on the compression motor, and the solvent enters the storage tank after being compressed and cooled. When the pressure of both the extraction tank and t...

Embodiment 3

[0013] Use 5000g Hangbai chrysanthemum as raw material, put it in the extraction tank, seal the extraction cover, open the vacuum pump and solenoid valve to start, when the vacuum gauge reading is greater than 0.07MPa, turn off the vacuum pump and solenoid valve start button. Open the injection valve to add solvent, using subcritical dimethyl ether fluid as solvent. When the amount of solvent added reaches 6 times the weight of the chrysanthemum raw material, close the injection valve and start the reflux extraction timing. The extraction conditions are: temperature -10°C ~ 10°C, pressure 0.5MPa, time 3 hours. After the extraction is finished, the extract is put into a separation tank, the dimethyl ether solvent is decompressed and vaporized, and separated from the crude extract of chrysanthemum. Then turn on the compression motor, and the solvent enters the storage tank after being compressed and cooled. When the pressure of both the extraction tank and the separation tank ...

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Abstract

The invention discloses chrysanthemum absolute oil extracted by using a subcritical fluid low-temperature process. The chrysanthemum absolute oil is extracted by adopting the following steps of: placing chrysanthemum raw materials in an extracting tank, vacuumizing the extraction tank until the vacuum degree in the extracting tank is more than 0.07MPa, stopping vacuumizing, adding a main solvent of subcritical dimethyl ether fluid in the extracting tank for reflux extraction, wherein the adding quantity of the main solvent is 2-10 times the weight of the chrysanthemum raw materials, the extracting conditions comprise the temperature of -10-30 DEG C, the pressure of 0.1-0.9MPa and the time of 1-5h; after the extraction is ended, introducing an extraction solution to a separating tank to ensure that the dimethyl ether solvent is decompressed and gasified to be separated from a chrysanthemum crude extract; making the separated solvent enter a storage and collection tank after being compressed and cooled; when the pressures of the extraction tank and the separating tank drop to zero, remaining for 5-10min, opening the separating tank for receiving the chrysanthemum crude extract; and removing water from the chrysanthemum crude extract by using an oil-water separator to obtain a chrysanthemum extract, adding 95 percent alcohol which accounts for 5-20 times the weight of the chrysanthemum extract, stirring and uniformly dissolving, freezing for 5-15h at the temperature of -5 to -20 DEG C, leaching and concentrating to obtain the chrysanthemum absolute oil.

Description

technical field [0001] The invention relates to the technical field of extracting flavors and fragrances in natural plants, in particular to extracting chrysanthemum absolute. Background technique [0002] Among the natural spice plant resources, chrysanthemum ( Chrysanthemum morifolium Ramat. ) is a plant of the genus Chrysanthemum in the Compositae family. It not only has a long history of being used as medicine, but also is loved by Chinese people for its delicate fragrance and elegant charm, and is widely used in health-care tea. The aroma of chrysanthemum is fresh and elegant, with a long artistic conception. It has a good compatibility in the fragrance and rhyme. The rhyme is elegant, natural and soft, and the aroma is relatively elegant. At present, most of these fragrance-type Compositae plants are limited to medicinal research and commercial production of essential oils, and most of them use traditional processes such as steam distillation and organic solvent extra...

Claims

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Application Information

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IPC IPC(8): C11B9/02
Inventor 刘煜宇包秀萍吴长伟李国盛李学彬
Owner YUNNAN REASCEND TOBACCO TECH GRP
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