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Method for extracting ecdysone from common cyanotis root and ecdysone thereof

A technology for ecdysone and dew grass, which is applied in the directions of separation methods, chemical instruments and methods, solvent extraction, etc., can solve the problems of low yield of ecdysone and the like, and achieve the effects of small amount of process solvent, easy industrial production and simple preparation method.

Active Publication Date: 2011-09-28
YUNNAN PHYTOPHARML
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AI Technical Summary

Problems solved by technology

The yield of ecdysterone obtained by these processes is all very low

Method used

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Embodiment 1

[0026] Embodiment 1 One of the embodiments of the present invention

[0027] A kind of method of extracting ecdysterone from dew grass of the present invention is carried out according to the following steps, and the ecdysterone provided by the present invention is also obtained by the following method:

[0028] (1) Take 100kg of dried dew grass with a water content of 7%, add 1000 L of water, the ratio of the amount of water added to the dew grass is 10L: 1kg, decoct twice, extract for 2 hours each time, combine the extracts, filter, and decompress The water liquid is recovered to a relative density of 1.10, and the obtained liquid is called a decompression concentrate.

[0029] (2) the obtained decompression concentrate is adjusted to pH 8 with chemically pure 20% sodium carbonate, and the liquid obtained is called the concentrate after pH adjustment;

[0030] (3) Extract the concentrated solution after the above-mentioned pH adjustment with industrial-grade n-butanol and i...

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Abstract

The invention discloses a method for extracting ecdysone from common cyanotis roots and the ecdysone thereof, belonging to the technical field of the extraction and the separation of effective components of plants. The method comprises the following steps of: decocting 0.5-1kg of common cyanotis roots by 10L of water, or extracting by using 1-95 percent methanol or ethanol, and the ratio of the using amount of the methanol or the ethanol to the common cyanotis roots is 5L-10L to 1kg; filtering, decompressing and concentrating to obtain liquid with the relative density of 1.05-1.20; regulatinga pH value to 6-10 by using alkali; then extracting by a mixed solvent with normal butanol and ethyl acetate, wherein the ratio of the normal butanol and the ethyl acetate is 4:6-0.5:9.5; washing, decompressing and concentrating to obtain a fluid extract with the relative density of 1.2-1.3; adding 50-95 percent methanol or ethanol for dissolving and dilution, passig through overhigh alkali type anion exchange resin, and eluting, concentrating and drying in a decompressing way to obtain the ecdysone. Compared with a conventional method, the method enhances the yield by 1.16-1.38 percent.

Description

technical field [0001] The invention belongs to the technical field of extraction and separation of plant active ingredients, and in particular relates to a method for extracting ecdysterone from dew grass and the ecdysterone prepared by the method. Background technique [0002] Dewweed (Cyanotis, arachnoidea, C, B, Clarke) is a perennial plant of the Commelinaceae genus Cyanotis, also known as Pearl Dewweed, distributed in Yunnan, Taiwan, Guangdong and other places. Its property is pungent, slightly bitter, and has the effects of expelling wind and activating collaterals, promoting dampness and reducing swelling. Ecdysone is extracted from dew grass and mainly contains a class of natural steroidal compounds with insect molting activity, the most important component of which is β-ecdysone. At present, β-ecdysone is detected according to the veterinary drug standard, its standard number is DB53 / veterinary drug 034-2000, and its determination method is ultraviolet spectrophot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07J9/00B01D11/00
Inventor 周敏武正才李文李明杰黄春球吕小波
Owner YUNNAN PHYTOPHARML
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