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Method for extracting dihydroquercetin from root of dahurian larch

A technology of dihydroquercetin and larch, applied in the field of dihydroquercetin extraction technology, can solve the problems of waste of finished products, unverifiable yield, unpublished content of dihydroquercetin, etc., and achieve high extraction rate , the effect of high purity

Active Publication Date: 2013-02-13
吉林省健维天然生物科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

Since the content of dihydroquercetin in the raw material has not been announced, the yield cannot be verified, and the raw material is a tree stump 500mm above the ground, which is a waste of the tree species

Method used

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  • Method for extracting dihydroquercetin from root of dahurian larch
  • Method for extracting dihydroquercetin from root of dahurian larch

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Embodiment 1

[0032] Equipment: 0.5m3 hot reflux extraction tank, 100L / h vacuum suction single-effect external circulation evaporator, 100L hydrolysis tank, 100L extraction tank, ZG-5 vacuum drying oven, 2BV5121 water ring vacuum pump. 50L recrystallization tank.

[0033] Raw materials: 35Kg, with an average content of 3.3% dihydroquercetin, from the roots of Yichun Meixi Forest Farm, and the thinning area where the trees are 38-42 years old.

[0034] Cleaning and cleaning of raw materials: Saw off the selected larch root raw materials, discard the root fibers, wash the sediment with a high-pressure water gun, then air-dry, and store it away from light at a relative humidity of 65%;

[0035] Raw material processing: crush the raw materials stored in step ③ into wood chips, the particle size is 3x3x6mm, the specific surface area is 16, and there are tears between the fibers;

[0036] Operation process:

[0037] 1. Put 35Kg of material into the extraction tank, add 315Kg of deionized ...

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Abstract

The invention provides a method for extracting dihydroquercetin from root of dahurian larch in a specified area by utilizing the resource advantages of high content of dihydroquercetin of the root of a tree (200mm below the earth surface). The method comprises multiple steps of selecting raw materials, treating, extracting, concentrating, hydrolyzing, extracting, recrystallizing and the like. The method for extracting dihydroquercetin from the root of the dahurian larch, provided by the invention, researches and plans environment-friendly and index-optimized processes by utilizing the resource advantages of high content of dihydroquercetin of the root of the tree so as to fill the blank of industrial extraction processes in China.

Description

technical field [0001] The invention relates to a process for extracting dihydroquercetin, in particular to a method for extracting dihydroquercetin from larch roots. Background technique [0002] Dihydroquercetin (Dihydroquercetin): molecular formula: C 15 h 12 o 7 ;Molecular weight: 304.26. [0003] Chemical structure: 2-(3,4-dihydroxyphenyl)-2,3-dihydro-3,5,7-trihydroxy-4H-benzopyran-4-one. Molecular Structure: [0004] [0005] Dihydroquercetin belongs to flavonoids and is named as vitamin P. It is a strong antioxidant that can prevent the activity of active oxygen (free radicals) in the human body. It has the functions of anti-radiation, detoxification, and antibody reflux. Oxidized lipid compounds and lesions of cell membranes. Plant extracts are non-synthetic. [0006] Uses of dihydroquercetin include: [0007] ① Comparison of flavonoids: paclitaxel, proanthocyanidins, ginkgo biloba, seabuckthorn, rutin, morin, hesperidin, quercetin, etc. have been recogni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/32C07D311/40
CPCC07D311/40C07D311/32
Inventor 王彦军郑毅男沈立国沈阳沈立乾
Owner 吉林省健维天然生物科技有限公司
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