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Variable pressure distillation method for extracting pythoncidere and essential oil from Chamaecyparis plants

A technology of pressure swing distillation and phytoncine, which is applied in the field of cypress phytoncine and cypress essential oil, can solve the problems of reduced yield, increased equipment investment, increased energy consumption, etc., and achieves the effect of clear color and long preservation

Inactive Publication Date: 2013-02-13
广西森呼吸科技工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when this method prepares essential oils with high-density wood of timber rhizomes such as juniper, the yield is greatly reduced, the energy consumption is greatly increased, and the equipment investment is also greatly increased.

Method used

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  • Variable pressure distillation method for extracting pythoncidere and essential oil from Chamaecyparis plants
  • Variable pressure distillation method for extracting pythoncidere and essential oil from Chamaecyparis plants
  • Variable pressure distillation method for extracting pythoncidere and essential oil from Chamaecyparis plants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Specific steps are as follows:

[0029] (1) Wash the perennial woody juniper rhizomes of mature cypress and yellow juniper provided by forest sites in Sichuan, Shaanxi, Yunnan, Guangxi and other provinces in western China with a high-pressure water gun to remove impurities such as sand and soil on the surface, and then bake them with an infrared dryer until the water content is 10% or less. Then cut it into dry wood chips with a length of about 7 cm, a width of about 3 cm, and a thickness of about 0.3 cm with a mechanical guillotine. Finely pulverize the dried juniper wood chips to make it into a particle powder of nearly 10 meshes, and feed 250 kg into the middle of the retort.

[0030] (2) The steam at 90°C is generated in the steam generator, which enters from the steam inlet of the lower part of the distillation tank, and briefly contacts with the filled cypress raw material. After 30 seconds, start the oil pump to evacuate and generate a negative pressure of 40kpa...

Embodiment 2

[0033] Specific steps are as follows:

[0034] (1) Wash the perennial woody juniper rhizomes of mature cypress and yellow juniper provided by forest sites in Sichuan, Shaanxi, Yunnan, Guangxi and other provinces in western China with a high-pressure water gun to remove impurities such as sand and soil on the surface, and then bake them with an infrared dryer until the water content is 10% or less. Then cut it into dry wood chips with a length of about 7 cm, a width of about 3 cm, and a thickness of about 0.3 cm with a mechanical guillotine. Finely pulverize the dried juniper wood chips to make it nearly 20 mesh particle powder, feed 260 kg into the middle of the retort.

[0035] (2) The water vapor of 95°C is produced in the steam generator, which enters from the steam inlet of the lower part of the distillation tank, and briefly contacts with the filled cypress raw material. After 40 seconds, start the oil pump to evacuate and generate a negative pressure of 50kpa. After th...

Embodiment 3

[0038] Specific steps are as follows:

[0039](1) Wash the perennial woody juniper rhizomes of mature cypress and yellow juniper provided by forest sites in Sichuan, Shaanxi, Yunnan, Guangxi and other provinces in western China with a high-pressure water gun to remove impurities such as sand and soil on the surface, and then bake them with an infrared dryer until the water content is 10% or less. Then cut it into dry wood chips with a length of about 7 cm, a width of about 3 cm, and a thickness of about 0.3 cm with a mechanical guillotine. Finely pulverize the dried juniper wood chips to make it into a particle powder of nearly 30 meshes, and feed 280 kg into the middle of the distillation tank.

[0040] (2) The water vapor at 100°C is generated in the steam generator, which enters from the steam inlet of the lower part of the retort, and briefly contacts with the filled cypress raw material. After 50 seconds, start the oil pump to evacuate and generate a negative pressure of...

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Abstract

The invention relates to a variable pressure distillation method for extracting pythoncidere and essential oil from Chamaecyparis plants. The pythoncidere is aqueous solution, and contains main effective ingredients including borneol, cedrol, carvacrol, bisabolol, and the like. The essential oil from Chamaecyparis plants is yellow and contains cedrene, thujopsene, cedrol, and the like. The variable pressure distillation process comprises the following steps: drying and pulverizing rhizomes of Chamaecyparis obtusa and Chamaecyparis formosensis, filling into a distillation tank, introducing steam from lower steam inlet of the distillation tank for 30-50 s, starting an oil pump to vacuumize so as to generate negative pressure of 40-60 kpa, reducing pressure and humidifying after pressure stabilizes, gradually restoring the negative pressure to normal atmospheric pressure after 20-30 min, connecting a coiled condenser for condensing vapor after 20-30 min, decolorizing with about 50-100 g activated carbon, separating oil phase and water phase, and filtering to remove impurities with filter screen to obtain the essential oil and hydrosol from Chamaecyparis plants, namely, water-soluble pythoncidere.

Description

technical field [0001] The invention relates to a juniper phendol and juniper essential oil, and a pressure swing distillation extraction method thereof. More specifically, the present invention relates to a kind of perennial cypress woody rhizomes such as cypress and yellow juniper as raw materials, extracted cypress essential oil and cypress phendol, water-soluble hydrosol, and a steam pressure swing distillation method. technical background [0002] Due to the inherent unsafety of chemically synthesized essential oils and other reasons, their use is often restricted. Juniper essential oil is a world-recognized high-grade natural fragrance. It is derived from precious trees such as cypress, red cypress and yellow cypress. The pure natural essential oil is clear and of excellent quality. Various beneficial ingredients such as cedrene and cedrol have dual functions of health care and medical treatment. The national standard organizations of Europe, America and Japan, FAO (U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02A61K31/05A61K31/045A61P31/00A61P29/00A61P21/02A61P17/04A61K36/14A61P25/20A61P31/04A61P35/00
Inventor 李竟铭王立升刘旭杨华蒋敏捷
Owner 广西森呼吸科技工程有限公司
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