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Technique for extracting general flavonoid from seeds of nitraria

A technology of total flavonoids and seeds, which is applied in the preparation of sugar derivatives, sugar derivatives, sugar derivatives, etc., can solve problems that have not been widely used, and achieve the goal of reducing industrial consumption, reducing production costs, and facilitating industrial production Effect

Inactive Publication Date: 2005-10-26
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Boiled and supercritical CO 2 Fluid extraction methods have many limitations and are not widely used

Method used

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  • Technique for extracting general flavonoid from seeds of nitraria
  • Technique for extracting general flavonoid from seeds of nitraria
  • Technique for extracting general flavonoid from seeds of nitraria

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1: 1. the Nitraria thorn seeds are dried and pulverized, and pulverized into seed powder with a particle size of 20-80 meshes, and reflux extraction with 3 times the amount of 95% ethanol solution at 90°C for 2 times, each extraction time is 4 hours , combined two extracts and filtered; ②The filtrate was passed through ethanol-treated non-polar D101 macroporous adsorption resin tower at a flow rate of 0.2BV / h; ③Eluted with water at a flow rate of 0.2BV / h until colorless or light brown, then stop the elution with 10% ethanol at a flow rate of 2.0BV / h until no flavonoids flow out (use FeCl 3 The solution detects the elution of flavonoids, if there are flavonoids, add FeCl 3 The solution will appear dark green, if not, it will not change color), collect the eluent; ④ evaporate and recover the ethanol in the eluent to obtain a flavonoid solution, then concentrate under reduced pressure to a viscous shape, freeze-dry, and pulverize to obtain a powdery flavonoid pr...

Embodiment 2

[0031] Embodiment two: 1. the Nitraria thorn seed is dried and pulverized, and pulverized into a particle size of 20-80 mesh seed powder, and reflux extraction with 4 times the amount of 90% ethanol solution at 80°C for 2 times, each extraction time is 3 hours , combined two extracts and filtered; ②pass the filtrate through ethanol-treated non-polar D101 macroporous adsorption resin tower at a flow rate of 0.5BV / h; or light brown, then stop the elution with 30% ethanol at a flow rate of 1.5BV / h until no flavonoids flow out (use FeCl 3 The solution detects the elution of flavonoids, if there are flavonoids, add FeCl 3 The solution will appear dark green, if not, it will not change color), collect the eluent; ④ evaporate and recover the ethanol in the eluent to obtain a flavonoid solution, then concentrate under reduced pressure to a viscous shape, freeze-dry, and pulverize to obtain a powdery flavonoid product .

Embodiment 3

[0032] Embodiment three: 1. the Nitraria thorn seeds are dried and pulverized, and pulverized into seed powder with a particle size of 20-80 mesh, and reflux extraction with 5 times the amount of 70% ethanol solution at 70°C for 3 times, each extraction time is 2 hours , combined three extracts and filtered; ②pass the filtrate through ethanol-treated non-polar D101 macroporous adsorption resin tower at a flow rate of 0.8BV / h; ③elute with water at a flow rate of 0.8BV / h until colorless or light brown, then stop the elution with 50% ethanol at a flow rate of 1.0BV / h until no flavonoids flow out (use FeCl 3 The solution detects the elution of flavonoids, if there are flavonoids, add FeCl 3 The solution will appear dark green, if not, it will not change color), collect the eluent; ④ evaporate and recover the ethanol in the eluent to obtain a flavonoid solution, then concentrate under reduced pressure to a viscous shape, freeze-dry, and pulverize to obtain a powdery flavonoid produ...

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Abstract

The process for extracting total flavone from seed of nitraria sibiria includes the following steps: drying seed of nitraria sibiria, pulverizing said dried seed into powder with 20-80 meshes, using ethyl alcohol solution to make reflux extraction at 60-90 deg.c, making the extract pass through non-polar macroporous adsorption resin tower, then using water and 50% ethyl alcohol solution to make elution until the flavoue is net flower out (using FeCl2 solution to make test and detection), collecting eluent, evaporating to recover ethyl alcohol from eluent to obtain flavone solution, concentrating and freeze-drying so as to obtain flavone powder.

Description

technical field [0001] The invention relates to a process for extracting biologically active flavonoids from wild berry plant resource Nitraria japonica seeds. Background technique [0002] Nitraria is a typical xeric or super-xeric desert plant of the family Zygophyllceae. It has strong resistance to stress, drought and salinity, and can adapt to high temperature and low cold. Naturally distributed in dry, saline-alkali, windy and harsh habitats with sparse vegetation, it is an excellent shrub for windbreak and sand fixation. Nitraria japonica is a traditional medicinal material of Mongolian, Tibetan, Uighur and other ethnic minorities in the west. It is used for the treatment of various diseases and often appears in Chinese and Tibetan medicine compound prescriptions. According to interviews with farmers and herdsmen in the production area, when the Nitraria fruit is ripe, the masses collect the fresh fruit and swallow it together with the pit. It can treat stomach proble...

Claims

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Application Information

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IPC IPC(8): C07D311/30
Inventor 索有瑞王洪伦丁晨旭
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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