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Extraction method of ginkgetin or isoginkgetin

A kind of ginkgo flavin, extraction method technology, applied in the direction of organic chemistry and the like

Active Publication Date: 2012-04-04
SHANGHAI INST OF PHARMA IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no published report on the extraction of ginkgoxanthin or isoginkoxanthin from capers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1 extracts ginkgoxanthin

[0040] Capers dried fruit 50kg, crushed (the particle size after crushing is 6 mesh), extracted with 8 times the volume of water, extracted twice, each time for 2 hours, filtered, combined two filtrates, concentrated under reduced pressure, to a density of 1.2 g / ml. Add ethanol until the alcohol concentration is 70%, and let the alcohol settle overnight. The filtrate was obtained by filtration, and concentrated under reduced pressure until it had no alcohol smell to obtain the extract.

[0041] The extract was dissolved in water, extracted with petroleum ether and chloroform in sequence to obtain 40 g of petroleum ether fraction and 168 g of chloroform fraction.

[0042] The chloroform part was separated with a polyamide column, and the column was washed with water, 30% ethanol, 50% ethanol, 70% ethanol, and 90% ethanol in sequence. Collect and detect by silica gel thin layer chromatography, when the volume ratio of developer chl...

Embodiment 2

[0049] Embodiment 2 extracts different ginkgoxanthin

[0050] Capers dried fruit 50kg, crushed (the particle size after crushing is 6 mesh), extracted with 8 times the volume of water, extracted twice, each time for 2 hours, filtered, combined two filtrates, concentrated under reduced pressure, to a density of 1.2 g / ml. Add ethanol until the alcohol concentration is 70%, and let the alcohol settle overnight. The filtrate was obtained by filtration, and concentrated under reduced pressure until it had no alcohol smell to obtain the extract.

[0051] The extract was dissolved in water, extracted with petroleum ether and chloroform in sequence to obtain 40 g of petroleum ether fraction and 168 g of chloroform fraction.

[0052] The chloroform part was separated with a polyamide column, and the column was washed with water, 30% ethanol, 50% ethanol, 70% ethanol, and 90% ethanol in sequence. Collect and detect by silica gel thin layer chromatography, when the volume ratio of dev...

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Abstract

The invention discloses an extraction method of ginkgetin or isoginkgetin. According to the invention, ginkgetin or isoginkgetin is first extracted from Capparis spinosa L., so a new approach is provided for the obtaining of ginkgetin or isoginkgetin.

Description

technical field [0001] The invention relates to a method for extracting ginkgoxanthin or isoginkkoxanthin. Background technique [0002] Capparis spinosa L. is a Capparis plant of the genus Capparis of the family Capparidaceae, also known as Capparis, Watermelon Button, Wild Watermelon, and Capparis, a perennial vine-like semi-trail shrub. It likes to be born on dry and sandy low hillsides and sandy land. Native to the Mediterranean coast. It is now common in southern France, Italy, Algeria and other regions, and it is also produced in Xinjiang, Tibet and other regions of my country. Capers are bitter in taste and warm in nature. Its root bark, leaves and fruits are widely used in Uighur folks to treat rheumatism, and have the functions of expelling wind, dispelling cold and dehumidification. The main components of capers are rutin, capric acid, ferulic acid, sinapic acid, and unsaturated fatty acids with 18 carbons. So far, there has been no document published about the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/30C07D311/40
Inventor 吴彤李燕杨方庄昌龙姜仁吉周海凤王鑫杰张乐乐樊晓
Owner SHANGHAI INST OF PHARMA IND CO LTD
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