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Method for extracting cypress essential oil and phytoncide at low temperature and negative pressure

A technology of low-temperature negative pressure and phytoncine, which is applied in the direction of essential oils/fragrances, fat production, etc., can solve the problems of easy volatilization of effective substances, heavy smell of coke gas and phenol, long distillation time, etc., to achieve simple preparation and avoid hydrolysis , Improve the effect of oil outlet area

Active Publication Date: 2019-02-12
四川桧元素生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still some problems to be solved when the conventional steam distillation method is directly used in the extraction of Chinese fir sawdust essential oil: when the distillation temperature is low, the yield of essential oil is low, the distillation time is long, and the long-term contact of aroma substances with water will result in too much extraction. Hydrolysis; when the distillation temperature is high, and due to long-term heating, the extracted essential oil is darker in color, and even some active ingredients in it are denatured by heat, which will cause the disadvantages of easy volatilization of effective substances, heavy coke gas and phenolic smell of cypress oil

Method used

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  • Method for extracting cypress essential oil and phytoncide at low temperature and negative pressure

Examples

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Effect test

Embodiment 1

[0076] Embodiment 1 provides a method for low-temperature negative pressure extraction of cypress essential oil and phytondrin, and the preparation process is as follows:

[0077] (1) Pretreatment

[0078] ① Cleaning for the first time: at room temperature, clean the roots of cypress trees over 60 years old with a high-pressure water gun, and wash them three times until no soil appears, and then dry them after cleaning;

[0079] ② Pulverization: use a pulverizer to pulverize the cypress in step ①, and the particle size of the obtained cypress particles is 180-220 μm;

[0080] ③Second cleaning: at room temperature, put the cypress particles obtained in step ② into water and carboxylic acid derivatives for cleaning three times; the volume ratio of the cypress root mass to water is 1:200; The weight ratio of water and carboxylic acid derivatives is 1:0.5;

[0081] ④ Soaking: put the cypress raw material obtained in step ③ into 50°C water and soak for 60 minutes;

[0082] (2) D...

Embodiment 2

[0093] Example 2 provides a method for extracting cypress essential oil and phytondrin under low-temperature negative pressure. The implementation method is the same as that of Example 1, except that the particle size of the cypress particles is 150-250 μm.

Embodiment 3

[0095] Embodiment 3 provides a kind of method of low-temperature negative pressure extraction juniper wood essential oil and phytondrin, and embodiment is the same as embodiment 1, and difference is as follows:

[0096] (1) Pretreatment

[0097] 1. First cleaning: at room temperature, put the roots of juniper trees more than 60 years old in water and wash them three times until no soil appears, then dry them after cleaning; the volume ratio of the roots of juniper trees to water is 1:500;

[0098] ② Pulverization: use a pulverizer to pulverize the cypress in step ①, and the particle size of the obtained cypress particles is 180-220 μm;

[0099] ③Second cleaning: at room temperature, put the cypress particles obtained in step ② into water and carboxylic acid derivatives for cleaning three times; the volume ratio of the cypress root mass to water is 1:450; The weight ratio of water and carboxylic acid derivatives is 1:1;

[0100] ④ Soaking: put the juniper wood raw material o...

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Abstract

The invention provides a method for extracting cypress essential oil and phytoncide at low temperature and negative pressure. The method comprises the steps of pre-treatment, distilling and cooling separation, wherein the pre-treatment comprises a step of crushing, and the grain size of the obtained cypress particles is 100-300 microns.

Description

technical field [0001] The invention relates to the field of plant extraction, more specifically, the invention relates to a method for extracting juniper essential oil and phytondrin under low-temperature negative pressure. Background technique [0002] Juniper is an evergreen tree with a tall trunk and hard wood, which can be used for bridges, furniture, shipbuilding, and carving; its roots and trunk contain aromatic oil, which can be processed and extracted from juniper oil. Since juniper is widely distributed in the forest areas of our country, juniper is not only fragrant and pleasant, but also has a unique hard texture, so it is widely used in the manufacture of wooden furniture and wooden ornaments. At the same time, because cypress has a strong cypress aroma, it is often used as a raw material for the production of sachets, massage balls, aroma pillows, etc., and can also be used as aromatherapy. The essential oil extracted from cypress can be used as high-grade ess...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/027
Inventor 吴启锡洪宗本
Owner 四川桧元素生物科技有限公司
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