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Method for simultaneously extracting Australian tea tree essential oil and flavonoid glycosides

A technology for tea tree essential oil and flavonoid glycosides, which is applied in chemical instruments and methods, fat oil/fat production, sugar derivative preparation and other directions, can solve problems such as the yield of essential oil affecting product quality, and achieves few steps, low critical temperature and critical pressure. , the effect of cost reduction

Inactive Publication Date: 2013-06-12
YUNNAN SENYUAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the existing technology in the process of extracting tea tree essential oil, the product quality and the yield of essential oil will be affected by high temperature steam, etc., the present invention provides a method for simultaneously obtaining Australian tea tree essential oil and flavonoid glycosides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A, choose the Australian tea tree produced in Shuangbai County, Yunnan Province, and crush the Australian tea tree leaves and twigs dried in the natural shade to a particle size of 10 mesh to obtain a crushed material;

[0020] B. Extract 1000 g of the pulverized material in step A with carbon dioxide supercritical extraction, add 2% absolute ethanol at the volume flow rate of carbon dioxide at the same time, and extract for 4 hours at an extraction pressure of 10 MPa and a temperature of 40° C. to obtain an extract;

[0021] C. Carry out three-stage separation of the extract obtained in step B, that is: under the conditions of a pressure of 8 MPa and a temperature of 55 ° C, perform the first-stage separation to obtain yellow flavonoid glycoside paste and residue; at a pressure of 6 MPa 1. Under the condition of 45°C, the first-stage separation residue is subjected to second-stage separation to obtain essential oil, flavonoid glycoside mixture and the remainder; under t...

Embodiment 2

[0026] A, the natural shade-dried Australian tea tree leaves are pulverized to a particle size of 80 mesh.

[0027] B. Put 1,000 grams of the pulverized material in step A for supercritical extraction with carbon dioxide, add acetone and n-hexane (volume ratio 1:1) at the same time as the volume flow of carbon dioxide, and extract at an extraction pressure of 20 MPa and a temperature of 80 °C 3 hours to obtain the extract;

[0028] C. Carry out three-stage separation of the extract obtained in step B, that is: under the condition of a pressure of 6 MPa and a temperature of 40°C, perform the first-stage separation to obtain yellow flavonoid glycoside paste and residue; at a pressure of 4 MPa 1. Under the condition of 30°C, the residue of the first stage separation is subjected to the second stage separation to obtain essential oil, flavonoid glycoside mixture and the residue; under the condition of pressure of 1MPa and temperature of 20°C, The remainder of separation is subjec...

Embodiment 3

[0033] A, choose the Australian tea tree produced in Shuangbai County, Yunnan Province, and crush the Australian tea tree twigs that are naturally shade-dried to a particle size of 120 mesh;

[0034] B. Carry out supercritical extraction of carbon dioxide with 1000 grams of the pulverized material in step A, add methanol and ethyl acetate of 0.5% of the volume flow of carbon dioxide at the same time, and extract for 2 hours at an extraction pressure of 40 MPa and a temperature of 20 ° C to obtain the extract ;

[0035] C. Carry out three-stage separation of the extract obtained in step B, that is: under the condition of a pressure of 7MPa and a temperature of 70°C, carry out the first-stage separation to obtain yellow flavonoid glycoside paste and residue; when the pressure is 5MPa 1. Under the condition of 60°C, the first-stage separation residue is subjected to second-stage separation to obtain essential oil, flavonoid glycoside mixture and residue; under the condition of pr...

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Abstract

The invention provides a method for simultaneously extracting Australian tea tree essential oil and flavonoid glycosides. The method is characterized by comprising the following steps: adding an entrainer into the dried Australian tea tree raw materials, performing carbon dioxide supercritical fluid extraction, and performing three-stage separation to obtain the Australian tea tree flavonoid glycosides and Australian tea tree essential oil. The extraction pressure and temperature are reduced, the extraction time is shortened, the method is easy to operate, the Australian tea tree essential oil can be recycled, and the essential oil and flavonoid glycosides yield is improved, so that the production cost is greatly reduced. The method has the characteristics of short production cycle, high product yield, high active ingredient content and wide technical adaptability.

Description

technical field [0001] The invention relates to a method for extracting Australian tea tree essential oil and flavonoid glycosides, belonging to the technical field of plant extraction. Background technique [0002] Australian tea tree is also known as Melaleuca alternifolia ( Melaleuca ahemifolia ), tea oil tree (Tea tree), it is Myrtaceae ( Myrtaceae ), Melaleuca ( Melaleua 1) Evergreen shrubs to small trees, native to the eastern part of Australia, were introduced into my country in the early 1990s. At present, a certain scale of planting has been formed in Guangxi, Guangdong, Yunnan, Fujian and other places. Australian tea tree leaves contain flavonoids and essential oils, the main components of which are 4-terpineol, 1,8-cineole and terpinene. It can kill fungi and bacteria on the surface of human skin efficiently, non-toxically and non-irritatingly, and also has inhibitory effect on some viruses. Its bactericidal effect is 11-13 times that of carbolic acid. It ha...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B1/04C07H17/07C07H1/08
CPCY02P20/54
Inventor 刘祥义凌清华周光平
Owner YUNNAN SENYUAN CHEM
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