Prepn process of licoflavone from licorice and licorice slag

A technology of licorice flavonoids and licorice can be applied to chemical instruments and methods, preparation of sugar derivatives, sugar derivatives, etc., and can solve problems such as application limitations

Inactive Publication Date: 2006-08-02
车庆明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since no one has extracted and separated a large amount of licorice flavonoids from licorice and licorice waste residue, its application in the fields of food, health products and pharmaceuticals is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preparation of licorice flavonoids from licorice waste residue.

[0019] Specific preparation process:

[0020] Add 15 liters of ethanol to 1.5 kg of licorice waste residue, soak for one day, filter, and concentrate under reduced pressure to obtain 90 grams of licorice flavonoids.

Embodiment 2

[0022] Preparation of licorice flavonoids from licorice waste residue.

[0023] Specific preparation process:

[0024] Add 15 liters of acetone to 1.5 kg of licorice waste residue, soak for one day, filter, and concentrate under reduced pressure to obtain 50 grams of licorice flavonoids.

Embodiment 3

[0026] Preparation of licorice flavonoids from licorice waste residue.

[0027] Specific preparation process:

[0028] Add 15 liters of methanol to 1.5 kg of licorice waste residue, heat and reflux for extraction for 2 hours, filter, and concentrate under reduced pressure to obtain 90 grams of licorice flavonoids.

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PUM

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Abstract

The present invention discloses preparation process of licoflavone from licorice and licorice slag, and features licoflavone is extracted from crushed licorice or licorice slag after extracting glycyrrhetic acid through adding organic solvent for soaking, filtering, and concentrating the filtrate; and that the prepared licoflavone contains licochalcone, isoliquiritigenin, glabidin, liquiritin, liquiritigenin and other components. The preparation process is simple, high in yield and suitable for industrial production.

Description

technical field [0001] The invention relates to a method for extracting and preparing compounds from plants. Specifically, it is a method for extracting and preparing licorice flavonoids from licorice and licorice waste residue. Background technique [0002] Glycyrrhiza licorice is the dry root and rhizome of Glycyrrhizae uralensis Fisch, Glycyrrhizae glabra L and G.inflata. It has the effects of invigorating the spleen and replenishing qi, clearing heat and detoxification, relieving cough due to fear of phlegm, relieving spasm and relieving pain, and coordinating various medicines. Licorice mainly contains triterpenes and flavonoids, and its triterpenoids, glycyrrhizic acid, are widely used in food flavorings, food and tobacco additives, in addition to being used as medicines. [0003] Historically, the use of licorice extracts has been limited to glycyrrhizic acid, but few people have studied the preparation of flavonoids from licorice and licorice residue. The waste re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/30C07H1/08C07H17/07
Inventor 车庆明
Owner 车庆明
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