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Ultrahigh-pressure extraction method of angelica dahurica volatile oil

A volatile oil and ultra-high pressure technology, which is applied in the direction of pharmaceutical formula, fat oil/fat production, medical preparations containing active ingredients, etc., can solve the problems of long heating times and time, high cost, easy oxidation and deterioration of volatile oil, etc.

Inactive Publication Date: 2020-05-26
南京西博恩生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the extraction methods of volatile oil mainly include steam distillation, oil absorption, solvent extraction, supercritical fluid extraction and cold pressing, etc., and the most commonly used method is steam distillation, but this method is in further separation. During refining, the traditional redistillation method is prone to oxidative deterioration and low yield due to the long heating times and time
The yield of volatile oil in supercritical CO2 extraction is high, but the investment cost in industrial production scale-up is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take 20g of Angelica dahurica medicinal material, add 200ml of 95% ethanol, extract under 400Mpa ultra-high pressure for 10min, filter to obtain the extract, extract the extract at 60°C to recover ethanol under reduced pressure, and obtain crude volatile oil, which is detected as 0.65g of crude volatile oil of Angelica dahurica, yield 3.25%.

Embodiment 2

[0017] Take 20g of Angelica dahurica medicinal material, add 1200ml of 40% ethanol, extract under 1000Mpa ultra-high pressure for 5min, filter to obtain the extract, and recover the ethanol from the extract under reduced pressure at 40°C to obtain 0.72g of crude volatile oil, with a yield of 3.60%.

Embodiment 3

[0019] Take 20g of Angelica dahurica, add 60ml of absolute ethanol, extract under 100Mpa ultra-high pressure for 30min, filter to obtain the extract, and recover the ethanol from the extract under reduced pressure at 90°C to obtain 0.74g of crude volatile oil, with a yield of 3.70%.

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PUM

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Abstract

The invention discloses an ultrahigh-pressure extraction method of angelica dahurica volatile oil. The method comprises the following steps: 1, taking the angelica dahurica raw material, pulverizing into fine powder, sieving through an 18-mesh sieve, and drying at 60 DEG C for 4 hours; 2, extracting angelica dahurica by using a solvent under an ultrahigh pressure condition; and 3, separating the solvent from the volatile oil to obtain the volatile oil. According to the method, by selecting and controlling the extraction solvent, the extraction time and the extraction pressure, the crude volatile oil in the angelica dahurica can be efficiently obtained, and meanwhile the method for extracting the crude volatile oil further has the advantages that extraction time is short, energy consumptionis low, thermal damage of active ingredients is avoided at low temperature and the like.

Description

technical field [0001] The invention belongs to the field of natural product extraction, and relates to an ultrahigh-pressure extraction method for volatile oil of Angelica dahurica. Background technique [0002] Baizhi, the name of traditional Chinese medicine. It is a perennial tall herb, 1-2.5 meters high, cylindrical root, 2-5 cm diameter at the base of the stem, basal leaves once pinnately divided, compound umbels terminal or lateral, fruit oblong to egg round. The main varieties are Hangbaizhi, Qibaizhi, Baizhi (original variety), and Taiwan Duhuo. The root is used as medicine, which has the functions of dispelling disease and dehumidification, draining pus and promoting granulation, promoting blood circulation and relieving pain. Indications for anemofrigid cold, headache, rhinitis, toothache. It can also be used as a spice for red and white vaginal discharge, pain, furuncle and swelling. Some provinces in the north have cultivation, most of which are self-produc...

Claims

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Application Information

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IPC IPC(8): C11B1/04C11B1/10A61K36/232A61K125/00
CPCA61K36/232A61K2236/17A61K2236/37C11B1/04C11B1/10
Inventor 董妍
Owner 南京西博恩生物科技有限公司
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