Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of isatidis extract

An extract of Radix Isatidis and the technology of the extract are applied in the field of preparation of Radix Radix Radix Radix, which can solve the problems of affecting the efficacy of Radix Radix Radix preparations, low content of DL-Gaoyichun, waste of Radix Radix Radix, etc.

Active Publication Date: 2017-01-25
NAT INST FOR FOOD & DRUG CONTROL
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the preparation process adopted by the existing preparations is not conducive to the extraction of DL-Souyichun, the content of DL-Souyichun in the preparations is extremely low, and even some batches have not been detected.
This has seriously affected the efficacy of the Radix Radix preparation, and from another perspective, it is also a waste of the Radix Radix medicinal material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of isatidis extract
  • A kind of preparation method of isatidis extract
  • A kind of preparation method of isatidis extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] A preparation method of Radix Radix Radix extract comprises the following steps:

[0068] (1) Grinding dried 500g Radix Radix to 50 mesh powder;

[0069] (2) Add 30 times the amount of water to the isatidis powder obtained in step (1), soak at 37°C for 4 hours, filter to obtain the filtrate;

[0070] (3) Concentrate the filtrate obtained in step (2) to dryness under reduced pressure to obtain 255 g of Radix isatidis extract, and the content of DL-Souyichun in the extract is 0.68% (g / g).

Embodiment 2

[0072] A preparation method of Radix Radix Radix extract comprises the following steps:

[0073] ⑴Crush 500g Radix Radix to 40 mesh powder;

[0074] (2) Add 40 times the amount of water to the isatidis powder obtained in step (1), soak at 39°C for 6 hours, filter to obtain the filtrate;

[0075] (3) Concentrate the filtrate obtained in step (2) to dryness under reduced pressure to obtain 253 g of Radix isatidis extract, and the content of DL-Souyichun in the extract is 0.62%.

Embodiment 3

[0077] A preparation method of Radix Radix Radix extract comprises the following steps:

[0078] (1) Grinding 500g of dried Radix isatidis to 65 mesh powder;

[0079] (2) Add 20 times the amount of water to the isatidis powder obtained in step (1), soak at 20°C for 3 hours, filter to obtain the filtrate;

[0080] (3) Concentrate the filtrate obtained in step (2) to dryness under reduced pressure to obtain 231 g of Radix isatidis extract, and the content of DL-Souyichun in the extract is 0.59%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for preparing a radix isatidis extract. The extract contains DL-epigoitrin. The preparation method comprises the following steps: crushing, adding water, leaching at the temperature of 20-60 DEG C for 3-6 hours, filtering, concentrating and drying the filtrate. According to the method, the conventional radix isatidis extraction process is greatly simplified, and the extraction rate of the DL-epigoitrin is obviously improved.

Description

technical field [0001] The invention relates to a preparation method of Radix isatidis extract, in particular to a method for preparing Radix isatidis extract which is simple and can increase the content of DL-Cauliflower. Background technique [0002] Isatis root is the dried root of Isantis indigotica Fort., a plant of the genus Isatis in the cruciferous family. It tastes bitter and cold, and has the functions of clearing away heat, detoxifying, cooling blood, and relieving sore throat. , influenza, etc., is the representative drug of heat-clearing and detoxifying traditional Chinese medicine. The production and sales volume of Radix isatidis preparations ranks the highest among Chinese patent medicines. The single-flavor preparations include Radix Radix Granules, Radix Radix Tablets, Radix Radix Oral Liquid, Radix Radix Capsules, Radix Radix Dripping Pills, Radix Radix Dispersible Tablets, and the approval number Nearly 1000. [0003] The development and application of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/195A61K36/315
Inventor 聂黎行戴忠马双成
Owner NAT INST FOR FOOD & DRUG CONTROL