Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Process of extracting baicalin from scutellaria baicalensis

A new process, the technology of astragaloside, is applied in the preparation of sugar derivatives, sugar derivatives, sugar derivatives, etc., which can solve the problems of cumbersome process, high cost, low yield, etc., and achieve shortened process, low cost, and extraction. high rate effect

Inactive Publication Date: 2003-11-12
张文臣
View PDF1 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is disclosed by Chinese patent CN1268512AS, and its disadvantage is that the process is more complicated, the cost is high, and the yield is low

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
  • Process of extracting baicalin from scutellaria baicalensis
  • Process of extracting baicalin from scutellaria baicalensis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take 400g, 150g, 50g and 300g of different Huang Ling medicinal materials, coarsely crush them into small pieces, add 3-10 times the amount of boiling water according to the weight of the medicinal materials, boil and extract 3 times, each time for 1-3 hours, coarsely filter, Combine the filtrates, stand still to remove impurities, adjust the pH value of the filtrate to 1-2 with hydrochloric acid, keep it warm at 70-80°C for 30-60 minutes, and precipitate huanglingside, wash the precipitate with acid water (or water) several times, 70-80 Insulate at ℃ for more than 12 hours, filter the precipitate, and dry below 70 ℃ (direct spray drying can also be used), to obtain 46.5g, 25g, 8.6g and 35.6g of crude radix radix, respectively. According to the high performance liquid chromatography method under the item of Huangling in the Chinese Pharmacopoeia 2000 edition, the content of each Huangling medicinal material and the corresponding crude product of Huangling was determined,...

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 process for extracting baicalin from scutellaia root includes the following steps: breaking scutellaria root into small blocks, according to the weight of scutelliaria root adding 3-10 times boiling water, decocting for 3 times, every time for 1-3 hr. straining, combining colatures, standing still for removing impurities, using hydrochloric acid to regulate pH value of colature to 1-2, heat-insulating for 30-60 min. at 70-80 deg.C, separating out baicalin precipitate, using acidic water or water to wash baicalin precipitate for several times, heat-insulating and standing still for above 12 hr. at 70-80 deg.C, filtering and precipitating, then drying to obtain baicalin crude product. The baicalin crude product content is above 80%, and the extraction rate of baicalin is above 80%.

Description

technical field [0001] The invention relates to a new process for extracting huangling glucoside from huangling. Background technique [0002] Huangling is a variety recorded in the Chinese Pharmacopoeia, which has the effects of clearing away heat and dampness, purging fire and detoxification, stopping bleeding and preventing miscarriage. Used for damp-warm, summer-warm, chest tightness and nausea, damp-heat fullness, dysentery, jaundice, lung-heat, cough, high fever and polydipsia, blood-heat and spit at the nose, carbuncle sores, restless fetal movement. It is a commonly used traditional Chinese medicine in clinical practice. According to literature reports, the active ingredients of Huangling are flavonoids such as Huanglingoside, Hanhuanglingoside and their aglycones. At present, in the preparation, it is mostly fed in the form of radix radix extract. At present, the commonly used extraction methods of radix radix can be generally classified ...

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
IPC IPC(8): C07H1/08C07H17/07
Inventor 韩桂茹李晓燕赵韶华
Owner 张文臣
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com