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Method for extracting baicalin from radix scutellariae

A technology of baicalin and baicalin, applied in the field of extracting baicalin, which can solve the problems of long time consumption and unfavorable operation of testing personnel, and achieve the effect of reducing the amount of solvent, good extraction effect and high efficiency

Inactive Publication Date: 2015-09-16
WUZHOU INST FOR FOOD & DRUG CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above method takes a long time, which is not conducive to the operation of testing personnel

Method used

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  • Method for extracting baicalin from radix scutellariae
  • Method for extracting baicalin from radix scutellariae
  • Method for extracting baicalin from radix scutellariae

Examples

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Embodiment 1

[0024] The instruments and consumables used in this embodiment are: Pulverizer, Electronic Analytical Balance (XA205DU): Sensitivity 0.001g, Accelerated Solvent Extractor Model: ASE-350 (10ml extraction pool, 50ml collection bottle), volumetric bottle: 100ml, 10ml. High performance liquid chromatography: double ternary liquid phase (U-3000), centrifuge tube: 2ml.

[0025] Step 1: Take about 0.1g of Scutellaria baicalensis medium powder, weigh it accurately, mix it with 1g of diatomaceous earth, and set aside;

[0026] Step 2: Pad 3 to 6 pieces of homemade round filter paper (diameter 27mm) at the bottom of the extraction pool (1 piece of commercial filter paper), add about 1g of diatomaceous earth, then add the homogeneously mixed sample obtained in step 1, and then add an appropriate amount of diatomaceous Shake it gently to make it on the same level as the mouth of the pool, and tighten the upper cover of the extraction pool.

[0027] Step 3: ASE extraction, the extraction ...

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Abstract

The invention discloses a method for extracting baicalin from radix scutellariae. The method comprises the following steps: first, radix scutellariae is crushed and then is mixed with diatomite; second, baicalin is extracted through an ASE extraction method, and the extract is collected, wherein, the extraction solvent employed by the ASE extraction method is an alcoholic solution with a volume fraction of 70%; third, after the constant volume of the extract is achieved, centrifugation is carried out and a supernatant containing baicalin is obtained. The purpose is to provide a method for extracting baicalin from radix scutellariae with rapid extraction and high precision.

Description

technical field [0001] The invention relates to the technical field of chemical detection, in particular to a method for extracting baicalin from Scutellaria baicalensis. Background technique [0002] According to the Chinese Pharmacopoeia 2010, Scutellaria baicalensis is the dry root of the plant Scutellaria baicalensis in the family Labiatae. Excavated in spring and autumn, remove fibrous roots and silt, remove rough bark after sun drying, and dry in the sun. Scutellaria baicalensis is conical, twisted, 8-25cm long and 1-3cm in diameter. The surface is brownish-yellow or dark yellow, with sparse warty fine root scars, the upper part is rough, with twisted longitudinal wrinkles or irregular netting, and the lower part has smooth lines and fine wrinkles. The quality is hard and brittle, easy to break, the cross-section is yellow, and the middle is reddish brown; the center of the old root is decayed or hollow, and it is dark brown or brown-black. Slight gas, bitter taste....

Claims

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Application Information

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IPC IPC(8): C07H17/07C07H1/08
CPCC07H17/07C07H1/08
Inventor 陈学松戴柏桉
Owner WUZHOU INST FOR FOOD & DRUG CONTROL
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