New method for extracting jasmine oil

A technology of jasmine essential oil and an extraction method, which is applied in the new field of jasmine essential oil extraction, can solve the problems of being difficult to achieve large-scale industrial production, low production efficiency of intermittent high-pressure extraction kettles, complicated processes and equipment, etc.

Inactive Publication Date: 2005-05-18
GUANGZHOU HONSEA SUNSHINE BIOTECH CO LTD
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Problems solved by technology

[0007] 1) The mixed use of supercritical method and solvent method cannot avoid the disadvantage of jasmine essential oil being heated and deteriorated;
[0008] 2) The supercritical method of direct feeding cannot overcome technical and economic problems such as loose flower volume, concentrated flowering period, and low production efficiency of intermittent high-pressure extraction kettles;
[0009] 3) The technology and equipment for trapping the aroma of jasmine by air blowing and adsorption are too complicated, and it is difficult to achieve large-scale industrial production

Method used

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  • New method for extracting jasmine oil

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Embodiment

[0017] Example: 500 kilograms of jasmine flowers are placed in groups and layers in flower stands. At 20-40 ° C, the air continuously passes through the flower layers to bring out the essential oils emitted by the flowers. The air flow is 5-50 liters per kilogram of flowers per minute, and the humidity is 60 -85%, the ventilation time is 12-30 hours, and the high-efficiency adsorbent uses activated carbon. The activated carbon that has absorbed the essential oil extracts and recovers the essential oil in supercritical CO2 fluid, the extraction pressure is 9-40MPA, the extraction temperature is 15-45°C, the extraction time is 1-3 hours, the separation and analysis pressure is 4-8MPA, and the temperature is 25-45°C. Obtain jasmine essential oil 850 grams. The obtained jasmine essential oil is light yellow transparent oily liquid, and has the unique fragrance of jasmine on the plant.

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Abstract

The invention belongs to the application of supercritical carbon dioxide extraction technology in the separation of flower essential oil, and mainly relates to a new extraction method of pure natural jasmine essential oil. The previous preparation method of jasmine fragrance adopts the mixed use of supercritical method and solvent method, and the yield is low, the solvent is polluted, and the heat deteriorates, which causes the difference between the product and fresh flowers, and is difficult to industrialize. The invention provides a new method for extracting pure natural jasmine essential oil suitable for large-scale industrial production. The method is to blow the fresh jasmine flowers layered with moist air at room temperature without any solvent treatment process to bring out the jasmine flowers. The aromatic components emitted are captured by a special adsorbent until the jasmine flower is exhaled, and then the essential oil in the adsorbent is recovered by supercritical carbon dioxide fluid extraction.

Description

technical field [0001] The invention belongs to the application of supercritical carbon dioxide extraction technology in the separation of flower essential oil, and mainly relates to a new extraction method of pure natural jasmine essential oil. Background technique [0002] The traditional preparation method of jasmine fragrance is to use solvent extraction process. The jasmine extract produced by this method contains a large amount of wax, protein, pollen and pigment. In addition, the separation solvent needs to be heated, which will inevitably affect some unstable elements in the flower essential oil. Components that cause the difference between the aroma of the extract and the flowers. [0003] Invention patent [85102396.4] proposes a new method for extracting essential oil from flower heads with supercritical CO2. In this method, the process of extracting essential oil from fresh flowers is divided into collecting the essential oils emitted by flowers through suction a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/00
Inventor 罗安东张镜澄
Owner GUANGZHOU HONSEA SUNSHINE BIOTECH CO LTD
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