Total flavone extract of abelmoschus manihot and preparing method of total flavone extract
A technology of hollyhocks and extracts, which is applied in the directions of food preparation, pharmaceutical formulations, drug combinations, etc., can solve the problems of large dosage, low content of active ingredients, and low quality of hollyhocks.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach
[0102] The hollyhock flower is the dried flower of Abelmoschus Manihot (L.) Medic, a plant of the genus Okra in the Malvaceae family.
[0103] The raw materials of hollyhock flower are provided by the hollyhock GAP planting base of Jiangsu Suzhong Pharmaceutical Group Co., Ltd., and other raw materials are commercially available, and meet the standards under the item "Solid hollyhock flower" of the 2010 edition of the Pharmacopoeia of the People's Republic of China.
Embodiment 1
[0104] Embodiment 1: the preparation of total flavonoids extract of hollyhock flower
[0105] 2000g of raw material medical material hollyhock flower of the present invention
[0106] Use 8 times the amount of 95% ethanol for the hollyhock flower, reflux extraction twice, each time for 1 hour, filter, combine the filtrate to recover the ethanol, concentrate the filtrate to a specific gravity of 1.20, and let the concentrate stand at 0°C-4°C for 24-48 hours, adjust the pH value to 6.0, and quickly dry the cold storage solution in a thin layer to obtain the crude extract of hollyhock flowers.
[0107] The total flavonoid content of the above-mentioned extract reaches 55.0% by weight percentage, wherein the total flavonoid extract contains: hyperoside 1.20%, isoquercitrin 1.50%, quercetin-3'-glucoside 1.00%, cotton bark Chlorin-3'-glucoside 0.9%. Take an appropriate amount of the above-mentioned crude extract, add quercetin-3'-glucoside and gossycetin-3'-glucoside to adjust to ...
Embodiment 2
[0108] Embodiment 2: the preparation of total flavonoids extract of hollyhock flower
[0109] 1000g of raw material medicinal material hollyhock flower of the present invention
[0110] Use 10 times the amount of 85% ethanol in the hollyhock flower, reflux extraction 3 times, each time for 2 hours, filter, combine the filtrate to recover the ethanol, concentrate the filtrate to a specific gravity of 1.35, pass the concentrated solution through a silica gel column, and use chloroform-methanol gradient washing After the extraction, the eluate is collected, concentrated, dried and pulverized to obtain the total flavonoids extract of marshmallow flowers. The volume ratio of chloroform-methanol can be followed by 20:80, 30:70, 40:60, 50:50, 60:40, 70:30, 80:20 to carry out gradient elution for 3 times of the column volume, and the collected chloroform-methanol Eluents in volume ratios of (30:70), (50:50) and (80:20).
[0111] The total flavonoid content of the above extract reach...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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