Extraction method and purification method of acorus gramineus volatile oil

The technology of an extraction method and a purification method is applied in the field of extraction and purification of the volatile oil of Acorus calamus, can solve the problems of low extraction efficiency, high technical requirements, damage to the chemical substance structure of the volatile oil, etc., achieves mild extraction conditions, is suitable for popularization and application, and improves the The effect of extraction efficiency

Active Publication Date: 2019-10-08
SHANXI UNIV OF CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, many researchers have carried out in-depth research on the pharmacognosy and chemical components of Shichangpu, but the corresponding production process reports are few and rough. According to many research results, there is no optimal extraction method for the volatile oil of Shichangpu. and suitable for promotion
[0004] The commonly used volatile oil extraction methods are steam distillation and supercritical CO 2 Extraction method, etc., steam distillation method has long extraction time, low extraction efficiency, high extraction temperature, easy to destroy active in

Method used

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  • Extraction method and purification method of acorus gramineus volatile oil
  • Extraction method and purification method of acorus gramineus volatile oil
  • Extraction method and purification method of acorus gramineus volatile oil

Examples

Experimental program
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Effect test

Example Embodiment

[0143] Embodiment 1 (the best embodiment):

[0144] A method for extracting the volatile oil of Acorus calamus, the extraction method comprising the following steps:

[0145] ①Pretreatment: Take 20.000 g of Chinese medicine pieces of Shichangpu, dry, pulverize, and pass through a 30-mesh sieve to obtain Shichangpu powder;

[0146] ②Ultrasonic extraction: Put the Acorus calamus powder in step ① into a round-bottom flask, add petroleum ether at a material-to-liquid ratio of 1:12.5 (g / ml), and then put the round-bottom flask into an ultrasonic cleaner for ultrasonic extraction , The ultrasonic power is 182W, the ultrasonic extraction time is 37min, the ultrasonic extraction temperature is 30℃, the neck of the round bottom flask is equipped with a reflux condenser to condense and recover the extract;

[0147] ③ Vacuum filtration: transfer the extract obtained in step ② to a Buchner funnel for circulating water vacuum vacuum filtration. The residue at the bottom of the round-bottom flask i...

Example Embodiment

[0154] Example 2:

[0155] A method for extracting the volatile oil of Acorus calamus, the extraction method comprising the following steps:

[0156] ①Pretreatment: Take 20.000 g of Chinese medicine pieces of Shichangpu, dry, pulverize, and pass through a 30-mesh sieve to obtain Shichangpu powder;

[0157] ②Ultrasonic extraction: Put the Acorus calamus powder in step ① into a round-bottom flask, add petroleum ether at a material-to-liquid ratio of 1:24 (g / ml), and then put the round-bottom flask into an ultrasonic cleaner for ultrasonic extraction , The ultrasonic power is 100W, the ultrasonic extraction time is 50min, the ultrasonic extraction temperature is 50℃, the neck of the round bottom flask is equipped with a reflux condenser to condense and recover the extract;

[0158] ③ Vacuum filtration: transfer the extract obtained in step ② to a Buchner funnel for circulating water vacuum vacuum filtration. The residue at the bottom of the round-bottom flask is washed with a small amoun...

Example Embodiment

[0165] Example 3:

[0166] A method for extracting the volatile oil of Acorus calamus, the extraction method comprising the following steps:

[0167] ①Pretreatment: Take 20.000 g of Chinese medicine pieces of Shichangpu, dry, pulverize, and pass through a 30-mesh sieve to obtain Shichangpu powder;

[0168] ②Ultrasonic extraction: Put the Shichangpu powder in step ① into a round-bottomed flask, add petroleum ether at a material-to-liquid ratio of 1:8 (g / ml), and then put the round-bottomed flask into an ultrasonic cleaning machine for ultrasonic extraction , The ultrasonic power is 250W, the ultrasonic extraction time is 24min, the ultrasonic extraction temperature is 25℃, the neck of the round bottom flask is equipped with a reflux condenser to condense and recover the extract;

[0169] ③ Vacuum filtration: transfer the extract obtained in step ② to a Buchner funnel for circulating water vacuum vacuum filtration. The residue at the bottom of the round-bottom flask is washed with a sma...

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Abstract

The invention relates to the technical field of traditional Chinese medicine extraction, and discloses an extraction method and a purification method of acorus gramineus volatile oil. The extraction method of the acorus gramineus volatile oil includes the steps of pre-treatment, ultrasonic extraction, vacuum suction filtration, rotary evaporation and other steps; and the purification method of theacorus gramineus volatile oil is to obtain the high-purity refined acorus gramineus volatile oil through ethanol immersion, vacuum and suction filtration and rotary evaporation carrying on the acorusgramineus volatile oil. The extraction method of the acorus gramineus volatile oil is reasonable in design and simple in technology, an ultrasonic extraction method is adopted, the extraction methodhas the advantages of being short in extraction time, mild in extraction conditions, high in product yield, high in active ingredient content of the obtained acorus gramineus volatile oil, no residualin solvent extraction, energy saving and environmental protection, and the purification method of the acorus gramineus volatile oil has the advantages of being simple in operation, high in purification efficiency, high in product active ingredient content and no residual in solvent.

Description

technical field [0001] The invention relates to the technical field of extraction of traditional Chinese medicines, in particular to a method for extracting and purifying volatile oil of Acorus calamus. Background technique [0002] Shichangpu is the dry rhizome of the perennial herbaceous plant Shichangpu in the family Araceae. It tastes pungent and bitter. Stroke aphasia embolism. At present, in clinical practice, Shichangpu is widely used in the treatment of diseases related to central nervous system and cardiovascular and cerebrovascular diseases. [0003] The main medicinal ingredient of Shichangpu is volatile oil, and the main component of volatile oil is asarone. At present, it is generally believed that the volatile oil of Shichangpu has a two-way regulating effect on the central nervous system, which not only calms the nerves (sedation, anti-convulsion), but also refreshes the mind (excitement, anti-depression). In recent years, many researchers have carried out ...

Claims

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Application Information

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IPC IPC(8): A61K36/888C11B9/02A61K125/00
CPCA61K36/888A61K2236/15A61K2236/35C11B9/025
Inventor 杨丽霞冯婷婷王堃
Owner SHANXI UNIV OF CHINESE MEDICINE
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