Menyanthes root extraction and its preparation method and usage

A technology of coriander root and extract, applied in the field of natural medicine coriander root extract

Inactive Publication Date: 2006-10-04
黄驰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Menyanthes root extraction and its preparation method and usage
  • Menyanthes root extraction and its preparation method and usage
  • Menyanthes root extraction and its preparation method and usage

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Preparation of the crude extract of the root

[0055] Take 300g of pyjama root coarse powder. Add 3000ml of ethanol and reflux for extraction twice, each for 1 hour, combine the extracts, recover the solvent to obtain a concentrated solution, further concentrate to obtain an extract, and dry to obtain 60 g of a crude extract of pyjama. Contains 8% of total triterpenes as betulinic acid.

Embodiment 2

[0057] Preparation of the extract from the root

[0058] Take 300g of the coarse powder of Nongcai root, add 3000ml of 95% methanol and reflux for extraction 2 times, 1 hour each time, combine the extracts, concentrate under reduced pressure to produce precipitation, cool to room temperature, filter with suction, wash the precipitate with warm water at 40℃, and reduce pressure Drying, washing with 3 times the amount of n-hexane for 3 times, and drying to obtain 10g of the refined extract of the nightweed, which contains 52% of the total triterpenes as betulinic acid.

Embodiment 3

[0060] Preparation of the extract from the root

[0061] Take 300g of pygmaea root coarse powder, add 3000ml of acetone and reflux for extraction 2 times, 1 hour each time, combine the extracts, concentrate under reduced pressure to dryness, dissolve the residue in water, concentrate under reduced pressure, let cool, and produce a kind of white precipitate, filter , The residue was dried under reduced pressure, washed with 5 times the amount of petroleum ether for 3 times, and dried to obtain 8 g of the refined extract of the root of pyjama vulgare, containing 50% of the total triterpenoids as betulinic acid.

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Abstract

The invention discloses an extract of menyanthes root significant portions, its preparing process, pharmaceutical composition containing the extract and the medical use. The extract can be used for treating or preventing various tumors and AIDS.

Description

Technical field [0001] The present invention relates to the field of natural medicines, in particular to an extract of the natural medicine Sleeping Caulis root, its preparation method and its medical use. Background technique [0002] Nymphaea root is the rhizome of Menyanthes trifoliate L., a plant of Gentianaceae. Nyjapa is mainly distributed in my country's Tibet, Yunnan, Sichuan, Guizhou, Hebei, Zhejiang, and Northeast China. It grows in groups in swamps and is generally harvested in autumn. Especially in the three northeastern provinces and Yunnan, Guizhou, and Sichuan, there is a large amount of hiding. [0003] Nymphaea root is nodular and irregularly long, 10-40cm long, 0.5-1.2cm in diameter, yellow to grayish yellow on the surface, with longitudinal wrinkles, obvious nodules, 0.2-4cm in length, with scaly leaves on the nodes , There are fibrous roots and fibrous root marks between nodes. The body is light and flexible, with a spongy cross-section, densely covered with s...

Claims

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Application Information

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IPC IPC(8): A61K36/51A61P35/00A61P31/18A61K125/00
Inventor 黄驰黄宁皓王旭敏
Owner 黄驰
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