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Extracting method for jasmine flower essential oil

The technology of a jasmine essential oil and an extraction method is applied in the extraction field of jasmine essential oil, and can solve the problems of long production cycle, inability to increase the scale, and high production cost, and achieve the effects of small solvent residue, reduced raw material loss, and large processing capacity.

Inactive Publication Date: 2014-10-29
GUANGXI FORESTRY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using organic solvents such as petroleum ether to extract jasmine flowers will easily cause the residue of toxic solvents in jasmine essential oil; using supercritical CO 2 To extract jasmine flowers, the equipment needs to be operated under high pressure conditions, the scale cannot be increased, and the production cost is high
There are also adsorbents such as activated carbon to absorb the aroma of jasmine, and then use supercritical CO 2 Extraction and recovery of essential oil in activated carbon avoids organic solvent pollution, but this method has low efficiency, difficult regeneration of adsorbent, and long production cycle
The shortcoming of existing jasmine essential oil production technology mainly lies in the residue of organic solvent and supercritical CO 2 The two aspects of high extraction production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take 1.0 kg of jasmine extract extracted with petroleum ether, and add 3.0 kg of edible ethanol with a content of 95% into the reactor. Stir and heat, the temperature in the reactor is controlled at 50-70℃, and the stirring time is 0.5-1.0h. Stop heating and stirring, pass condensed water, cool the raw materials in the reactor to 15-25°C, filter to remove the filter residue, and obtain an ethanol extract of jasmine extract. The extract is firstly distilled under normal pressure for 0.5h, and distilled under reduced pressure at a vacuum of -0.09MPa for 0.5-1.0h, and 2.6kg of solvent ethanol is recovered. The obtained concentrate is mixed with 2-3 times the volume of water, stirred for 0.5-1 h, separated into layers at rest, drained the lower layer of water, and washed with water for 2-3 times, the obtained concentrate is crude jasmine essential oil. The obtained crude jasmine essential oil has a mass of 0.42 kg, an ethanol content of 0.8%, and a hydrocarbon organic solve...

Embodiment 2

[0026] Take 1.0 kg of jasmine extract extracted with petroleum ether, and add 5.0 kg of edible ethanol with a content of 85% to the reactor. Stir and heat, the temperature in the reactor is controlled at 50-70℃, and the stirring time is 0.5-1.0h. Stop heating and stirring, pass condensed water, cool the raw materials in the reactor to 15-25°C, filter to remove the filter residue, and obtain an ethanol extract of jasmine extract. The extract is firstly distilled under normal pressure for 0.5h, and distilled under reduced pressure at a vacuum of -0.09MPa for 0.5-1.0h, and 4.5kg of solvent ethanol is recovered. The obtained concentrate is mixed with 2-3 times the volume of water, stirred for 0.5-1 h, separated into layers at rest, drained the lower layer of water, and washed with water for 2-3 times, the obtained concentrate is crude jasmine essential oil. The obtained crude jasmine essential oil has a mass of 0.45 kg, an ethanol content of 0.9%, and a hydrocarbon organic solvent...

Embodiment 3

[0028] Take 1.0 kg of jasmine extract extracted with n-pentane, and add 10.0 kg of edible ethanol with a content of 80% to the reactor. Stir and heat, the temperature in the reactor is controlled at 50-70℃, and the stirring time is 0.5-1.0h. Stop heating and stirring, pass condensed water, cool the raw materials in the reactor to 15-25°C, filter to remove the filter residue, and obtain an ethanol extract of jasmine extract. The extract is firstly distilled under normal pressure for 0.5 h, and distilled under reduced pressure at a vacuum of -0.09 MPa for 0.5-1.0 h, and 7.8 kg of solvent ethanol is recovered. The obtained concentrate is mixed with 2-3 times the volume of water, stirred for 0.5-1 h, separated into layers at rest, drained the lower layer of water, and washed with water for 2-3 times, the obtained concentrate is crude jasmine essential oil. The obtained crude jasmine essential oil has a mass of 0.47 kg, an ethanol content of 1%, and a hydrocarbon organic solvent co...

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Abstract

The invention discloses an extracting method for jasmine flower essential oil. The extracting method comprises the steps of extracting by petroleum ether or n-pentane to prepare jasmine flower extract, dissolving by alcohol and freezing to remove plant wax impurities, distilling to recycle a solvent alcohol, washing and removing the alcohol to prepare crude jasmine flower essential oil; further separating the crude jasmine flower essential oil by supercritical CO2 extraction to remove residual solvent to prepare the jasmine flower essential oil with pure flavor. According to the extracting method, supercritical CO2 extraction is carried out on treated jasmine flower extract, so that advantages of low cost and great treatment capacity for extracting fresh jasmine flowers by the solvent and the advantages of high efficiency and no solvent residue of supercritical CO2 extracting and separating are sufficiently combined to realize small solvent residual quantity and low cost, and therefore, the extracting method disclosed by the invention is suitable for producing the jasmine flower essential oil on a large scale.

Description

Technical field [0001] The invention relates to the technical field of extracting natural flavors and fragrances, in particular to a method for extracting jasmine essential oil. Background technique [0002] Jasmine essential oil is known as the "King of Essential Oils" and is widely used in various flavors, especially top perfumes and top cosmetic flavor formulations, and in the daily cosmetics, medicine, food and beverage, tobacco, chemical and other industries, and has the function of biological hormones. Aphrodisiac, regulate the reproductive system, promote milk secretion, regulate dry and sensitive skin, dilute stretch marks and scars, increase skin elasticity, etc. About supercritical CO 2 Research on extracting jasmine essential oil has been reported in some public literature in China. For example, the Guangxi Academy of Forestry Science and the Institute of Fine Chemicals of Guangxi University have investigated supercritical CO 2 The extraction of sweet-scented osmanthu...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCB01D11/0288
Inventor 陆顺忠孟中磊李秋庭关继华黎贵卿邱米杨漓杨素华苏骊华党中广
Owner GUANGXI FORESTRY RES INST
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