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Method for extracting high-purity baicalin from radix scutellariae

A technology for baicalin and scutellariae, which is applied in the field of extracting high-purity baicalin from scutellaria baicalensis and its purification, can solve the problems of high energy consumption, complicated and time-consuming purification steps, and long time-consuming scutellaria baicalensis extract, and achieves low cost and shortened production. Cycle, extract quick effects

Inactive Publication Date: 2019-02-12
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this process uses flash extraction to replace the traditional extraction method, the remaining purification steps are cumbersome and time-consuming traditional processes, especially the preparation of Scutellaria baicalensis extract takes a long time and consumes a lot of energy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 50 g of Scutellaria baicalensis powder, add 9 times the amount of 50% ethanol to soak for 1 hour, extract twice by flash extraction, and filter the extract with four layers of gauze. Under the above chromatographic conditions, the content of baicalin in the extract was determined and the extraction rate was calculated.

Embodiment 2

[0024] Weigh 50 g of Scutellaria baicalensis powder, add 9 times the amount of 70% ethanol to soak for 1 hour, extract twice by flash extraction, and filter the extract with four layers of gauze. Under the above chromatographic conditions, the content of baicalin in the extract was determined and the extraction rate was calculated.

Embodiment 3

[0026] Weigh 50 g of Scutellaria baicalensis coarse powder, add 9 times the amount of 90% ethanol to soak for 1 hour, extract twice by flash extraction, and filter the extract with four layers of gauze. Under the above chromatographic conditions, the content of baicalin in the extract was determined and the extraction rate was calculated.

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PUM

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Abstract

The invention relates to a method for extracting and purifying baicalin from radix scutellariae. A flash extraction method is adopted to extract the radix scutellariae, the extract is concentrated, apolymeric flocculant is added into the concentrated liquid for absorbing and clarifying, the supernatant liquid is continuously concentrated, and acid is added for adjusting acidity, so that the high-purity baicalin is obtained. The preparation process is simple and convenient to operate as well as energy-saving and environmentally-friendly; the product is free from residue of toxic solvents; themethod is suitable for industrial production of the high-purity baicalin by utilizing the radix scutellariae.

Description

technical field [0001] The invention belongs to the field of medicine and relates to extraction and purification methods of active components of traditional Chinese medicines, in particular to extraction of high-purity baicalin from Scutellaria baicalensis and a purification method thereof. Background technique [0002] Scutellaria baicalensis is the dried root of Scutellaria baicalensis Georgi, a plant in the Labiatae family, which has the functions of clearing away heat and dampness, purging fire and detoxifying, stopping bleeding and preventing miscarriage. Pharmacological studies have shown that it has pharmacological activities such as anti-inflammatory, antibacterial, anti-allergic, diuretic, choleretic and antispasmodic. Baicalin is its main active ingredient, and its content in medicinal materials reaches 10% or more. [0003] At present, the commonly used methods for extracting baicalin from Scutellaria baicalensis include water decoction, reflux extraction, ultraso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H17/07C07H1/08
CPCC07H1/08C07H17/07
Inventor 汤淮波易伟
Owner XIANGTAN UNIV
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