Acute turpinia leaf general flavone ethanol reflux extract, and preparation method and application thereof

A technology of ethanol reflux extraction and round leaves of Shanxiang, which is applied in the direction of drug combination, pharmaceutical formula, plant raw materials, etc., can solve the problem of high price, and achieve the effect of reducing infection, preventing and treating influenza and its complications

Active Publication Date: 2010-10-20
JIANGXI SHANXIANG PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Western medicine "Oseltamivir Phosphate (Tamiflu, (3R, 4R, 5S)-4-Acetamide-5-Amino-3(1-Propoxyethyl)-1-Cyclohexene-1 Carboxylic Acid Ethyl Phosphate "Salt)" is a neuraminidase inhibitor, which has a specific inhibitory effect on the entry of

Method used

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  • Acute turpinia leaf general flavone ethanol reflux extract, and preparation method and application thereof
  • Acute turpinia leaf general flavone ethanol reflux extract, and preparation method and application thereof
  • Acute turpinia leaf general flavone ethanol reflux extract, and preparation method and application thereof

Examples

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Embodiment 1

[0029] Preparation method: Take the round leaves of Shanxiang, use 5 times the volume of 90% ethanol as the extraction solvent, reflux extraction once for 3 hours, combine the extracts, filter, recover the ethanol from the filtrate, and absorb the aqueous solution with a non-polar macroporous adsorption resin. Use 10% ethanol to elute to remove impurities, then elute with 70% ethanol of 7 times the volume of the column, collect the eluate, recycle the ethanol, concentrate, dry, and obtain the ethanol reflux extract of the total flavonoids of Shanxiang round leaves, wherein the total flavonoids The content is 51.6%, containing privetin, rhodorin and hyperoside up to 15%, 5% and 4% respectively.

Embodiment 2

[0031]Preparation method: Take the round leaves of Shanxiang, use 14 times the volume of 45% ethanol as the extraction solvent each time, reflux extraction once for 2 hours, combine the extracts, filter, recover ethanol from the filtrate, and use non-polar macroporous adsorption resin for the aqueous solution Adsorption, eluting with 15% ethanol to remove impurities, and then eluting with 50% ethanol of 6 times the volume of the column, collecting the eluate, reclaiming ethanol, concentrating, drying, and obtaining the ethanol reflux extract of the total flavonoids of Cymbidium flavonoids, wherein The total flavonoid content is 55.1%, containing 8%, 12%, and 5% of privetin, rhodorin, and hyperoside, respectively.

Embodiment 3

[0033] Preparation method: Take the round leaves of Shanxiang, each time use 12 times the volume of 50% ethanol as the extraction solvent, reflux extraction twice, each time for 1.5 hours, combine the extracts, filter, recover ethanol from the filtrate, and use non-polar macroporous Adsorbed by adsorption resin, eluted with 18% ethanol to remove impurities, then eluted with 55% ethanol with 5 times the volume of the column, collected the eluate, recovered ethanol, concentrated, dried, and obtained the ethanol reflux extract of the total flavonoids of Rhizoma chinensis , the total flavonoid content is 59.6%, containing privetin, rhodorin, and hyperoside respectively reaching 11%, 7%, and 9%.

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Abstract

The invention relates to an acute turpinia leaf general flavone ethanol reflux extract, which is prepared from acute turpinia leaves through ethanol reflux extraction, wherein an extraction method comprises the following steps: taking acute turpinia leaves; adding 30 to 90 percent of ethanol accounting for 5 to 15 times of the volume for carrying out reflux extraction for 1 to 3 times, wherein each time of reflux extraction lasts for 1 to 3 hours; carrying out filtration; merging filter liquid; recovering the ethanol from the filter liquid; using nonpolar macroporous absorbent resin for absorbing water solution; using the ethanol lower than 20 percent for elution to remove impurities; then, using 25 to 90 percent of ethanol for elution; collecting elution liquid; recovering the ethanol; and carrying out concentration and drying to obtain the acute turpinia leaf general flavone ethanol reflux extract. The general flavone content is higher than 50 percent, and the flavone type major chemical ingredients are one kind or several kinds of materials in nuezhenoside, rhoifolin, hyperin, meletin, cyanidenon, apiolin and glucoside or aglycon thereof. The extract can be used as a neuraminidase inhibitor to be used for preventing and treating flu, and can be made into pharmaceutically acceptable preparations.

Description

technical field [0001] The invention relates to an ethanol reflux extract of total flavonoids from the leaves of Rhizoma chinensis, a preparation method and application thereof. Background technique [0002] At present, influenza virus is becoming more and more serious, and influenza virus is closely related to respiratory diseases and systemic diseases caused by it. my country is one of the countries with high incidence of influenza. Not only has a large population, but also living habits are conducive to the transmission of influenza virus. The average number of episodes ranged from 0.3 to 0.7, and 2 to 4 in key groups. Influenza poses a serious threat to human beings, especially the emerging strains of influenza virus, which not only cause secondary infections of other microorganisms, but also directly lead to organ damage and allergic reactions leading to death. But there is no effective method and treatment means for treating influenza virus and its disease (influenza) ...

Claims

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Application Information

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IPC IPC(8): A61K36/185A61P31/16A61P11/00A61P13/12A61P43/00A61K127/00
Inventor 唐春山王燕平张华敏谢宁吕武清杨小玲刘地发李志勇程帆
Owner JIANGXI SHANXIANG PHARMA
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