Method of adopting simultaneous distillation and extraction technology to extract volatile oil in agilawood leaf

An extraction technology and agarwood leaf technology are applied in the field of extracting volatile oil from agarwood leaves, and can solve problems such as unsuitability for industrialization, volatilization, and environmental pollution.

Inactive Publication Date: 2016-07-13
INSPECTION AND QUARANTINE TECHNOLOGY CENTER ZHONGSHAN ENTRY EXIT INSPECTION AND QUARANTINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steam distillation method is easy to cause the destruction and volatilization of the active ingredients in the volatile oil, thereby reducing the value of the extract; the solvent extraction method needs to consume a large amount of high-purity organic solvent, and the extraction time is long, which is easy to cause environmental pollution; and CO 2 Although the supercritical fluid extraction method is not easy to destroy the biological activity and does not leave any organic solvents, it is not suitable for industrialization due to the large investment in equipment costs and high technical requirements.

Method used

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  • Method of adopting simultaneous distillation and extraction technology to extract volatile oil in agilawood leaf
  • Method of adopting simultaneous distillation and extraction technology to extract volatile oil in agilawood leaf

Examples

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specific example 1

[0038] The agarwood leaves are crushed and passed through a 20-mesh sieve, sealed for later use. Accurately weigh 50.00 g of Agarwood leaf powder after sieving, place in 3L material bottle 28, add water 400mL, soak for 8 hours, add a little zeolite, as figure 2 As shown, it is connected to the left side of the simultaneous distillation and extraction device, another 25mL of dichloromethane is placed in a 100mL solvent bottle 29, connected to the right side of the simultaneous distillation and extraction device, the condenser 23 is opened, the discharge valve 25 is closed, and then heated The solvent bottle 29 makes the condensed dichloromethane liquid fill the U-shaped condensate collecting pipe 24 to a certain height, and then heats the material bottle 28. The material bottle 28 is heated with an electric heating mantle, the temperature is controlled between 90-100°C, and the water is kept boiling to generate steam. The solvent bottle 29 is heated with a constant temperature...

specific example 2

[0040] The agarwood leaves are crushed and passed through a 20-mesh sieve, sealed for later use. Accurately weigh 75.00g of Agarwood leaf powder after sieving, place in 3L material bottle 28, add water 550mL, soak for 10 hours, add a little zeolite, such as figure 2 As shown, connect to the left side of the simultaneous distillation extraction device, take another 25mL dichloromethane and place it in a 100mL solvent bottle 29, connect it to the right side of the simultaneous distillation extraction device, open the condenser 23, close the discharge valve 25, and start heating The solvent bottle 29 makes the condensed dichloromethane liquid fill the U-shaped condensate collecting pipe 24 to a certain height, and then heats the material bottle 28. The material bottle 28 is heated with an electric heating mantle, the temperature is controlled between 90-100°C, and the water is kept boiling to generate steam. The solvent bottle 29 is heated with a constant temperature water bath,...

example 3

[0042] The agarwood leaves are crushed and passed through a 20-mesh sieve, sealed for later use. Accurately weigh 100.00 g of Agarwood leaf powder after sieving, place in 3L material bottle 28, add water 700mL, soak for 9 hours, add a little zeolite, as figure 2 As shown, connect to the left side of the simultaneous distillation extraction device, take another 25mL dichloromethane and place it in a 100mL solvent bottle 29, connect it to the right side of the simultaneous distillation extraction device, open the condenser 23, close the discharge valve 25, and start heating The solvent bottle 29 makes the condensed methylene chloride liquid fill the discharge pipe, and then heats the material bottle 28. The material bottle 28 is heated with an electric heating mantle, the temperature is controlled between 90-100°C, and the water is kept boiling to generate steam. The solvent bottle 29 is heated with a constant temperature water bath, and the temperature is controlled between 60...

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Abstract

The invention discloses a method of adopting simultaneous distillation and extraction technology to extract volatile oil in agilawood leaf.The method includes that two steps of agilawood leaf water solution distillation and solvent extraction are combined into one.Most steps in the method are performed in a simultaneous distillation and extraction device, so that the method is simple, convenient and practical in operation and easy in industrial production.Steam of agilawood leaf volatile oil and dichloromethane steam come across above the simultaneous distillation and extraction device and fully contact, extracting of the agilawood leaf volatile oil from the steam into the dichloromethane steam is facilitated, reducing of solvent consumption is facilitated, damage to and volatilization of active ingredients in the volatile oil are prevented, and value of extract is guaranteed.

Description

[technical field] [0001] The patent of the present invention relates to a method for extracting volatile oil from agarwood leaves by using simultaneous distillation and extraction technology. [Background technique] [0002] Agarwood, the wood containing resin in Aquilariasinensis (Lour.) Gilg, a plant of the family Daphneaceae, is a traditional precious medicinal material and natural spice. The effect of strengthening yang and eliminating numbness has been used by traditional Chinese medicine to treat chest and abdominal distension and pain, stomach cold, vomiting and hiccups, kidney deficiency and dyspnea and other diseases. Due to the long cycle of agarwood and its slow growth, it generally takes more than 20 years to mature. At the same time, the wild resources of agarwood have been severely damaged by human over-harvesting for a long time. Agarwood leaves, as the non-medicinal part of Agarwood, can be picked twice a year in large quantities, and the output is relatively...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02B01D3/40B01D11/02
CPCB01D3/40B01D11/02C11B9/025C11B9/027
Inventor 李浩洋李云松张宪臣李蓉冯雪雅叶少媚陈海莹梁健宇
Owner INSPECTION AND QUARANTINE TECHNOLOGY CENTER ZHONGSHAN ENTRY EXIT INSPECTION AND QUARANTINE
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