Extraction method for jasmine flower essential oil

A technology of jasmine essential oil and extraction method, which is applied in the field of jasmine essential oil extraction, can solve the problems of small aromatic components and high water content in products, and achieve the effects of low water content, non-perishability, and reduced usage

Active Publication Date: 2014-04-23
谢大高
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Problems solved by technology

The quality of the jasmine essential oil obtained by this method is high, but because the aromatic components entrained by the moist air account for a small proportion of the gas components, the adsorbent also absorbs and accounts for the vast majority of water in addition to the aromatic substances, so a large amount of water is required. Adsorbent, and the resulting product has a high moisture content, and a subsequent water removal step is required to obtain a pure product

Method used

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  • Extraction method for jasmine flower essential oil

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Embodiment ）

[0023] test Activated carbon / kg Air humidity / % Dehumidifier temperature / ℃ Essential oil yield / g Moisture content of essential oil / % Example 1 50 70 -2 827 0.01 Example 2 50 70 0 1316 0.03 Example 3 50 70 5 1634 0.07 Example 4 50 70 10 1782 0.11 Example 5 50 70 25 1801 0.63 Example 6 50 70 30 1468 1.72 Example 7 50 50 5 1531 0.05 Example 8 50 80 5 1669 0.10 Example 9 50 100 5 1710 0.14

[0024] It can be seen from the data in the table that controlling the temperature of the dehumidifier at 0-10°C can condense the humid air with essential oils and remove part of the water, because the same weight of adsorbent can absorb more essential oils, and the output of essential oils is high. , at the same time, due to the less water absorbed by activated carbon, after supercritical CO 2 After extraction, the obtained product has low water content and high product quality.

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Abstract

The invention discloses an extraction method for a jasmine flower essential oil. The extraction method comprises the following steps: (1) carrying out essential oil adsorption: at the room temperature, adopting a wet air flow to pass through jasmine flowers, then cooling the wet air with the jasmine essential oil to 0-10 DEG C, and removing a part of water; and removing condensed water of the part of water, and adsorbing the essential oil by an adsorbing agent; and (2) carrying out essential oil desorption: adopting a supercritical carbon dioxide fluid to extract activated carbon which adsorbs the jasmine flower essential oil, and thus obtaining the jasmine flower essential oil; and adding a solvent into the condensed water to recycle a spice, and recycling a spice from gas discharged by an induced draft fan. The method treats each ton of jasmine fresh flowers by using about 50 kg of activated carbon, and is low in cost; and the obtained product has low water content and does not easily get metamorphic.

Description

technical field [0001] The invention discloses a method for extracting jasmine essential oil, in particular to a physical extraction method for jasmine essential oil. Background technique [0002] Jasmine is the flower of Jasmine, a shrub in the family Oleaceae. Jasmine has an elegant fragrance, and its essential oil has a clear relaxing effect and stimulates the nervous system; it also calms coughs, cares and improves skin elasticity, and fades stretch marks and scars, so it is very expensive. The method of extracting jasmine essential oil from jasmine mainly contains: 1. Fat adsorption method The fat adsorption method is to use oil to absorb the essential oil in jasmine flower, which has the advantage of simple production process, but the separation of follow-up essential oil and oil is more difficult, generally no further separation but Used as a balm, the scope of use is limited. 2. Extraction method Soak jasmine flowers in low boiling point solvents such as sherwood o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
Inventor 谢大高谢宏华谢惠叶
Owner 谢大高
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