Method for extracting ethyl-alpha-D-furan arabinose from Nigella sativa seeds.

A technology of arabinose and ethyl, applied in the field of plant extraction and separation, to achieve the effects of extensive biological activity, good selectivity, and beneficial to sustainable utilization

Active Publication Date: 2021-02-26
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Currently, there is no report on the extraction and isolation of the compound ethyl-α-D-arabinofuranofuranose from the seeds of Nigella sativa

Method used

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  • Method for extracting ethyl-alpha-D-furan arabinose from Nigella sativa seeds.
  • Method for extracting ethyl-alpha-D-furan arabinose from Nigella sativa seeds.
  • Method for extracting ethyl-alpha-D-furan arabinose from Nigella sativa seeds.

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Embodiment 1

[0025] A method for extracting ethyl-α-D-arabinofuranose from Nigella sativa seeds, comprising the following steps:

[0026] 1) Use 5kg of dry Nigella sativa seeds as raw material, soak and degrease with 7L petroleum ether at room temperature after crushing (defatting 3 times, each degreasing time is 3 days), evaporate the residue to dry petroleum ether, cool with 70% ethanol at room temperature Leach and extract 3 times (the ratio of residue to 70% ethanol to liquid is 5kg:7L), each time for 3 days, combine the extracts, recover the solvent under reduced pressure, and obtain the extract extract;

[0027] 2) Dissolve the extract extract in methanol, mix the sample on a silica gel column, and use dichloromethane- Gradient elution was performed on the silica gel column with methanol, and combined by silica gel thin-layer chromatography to obtain 7 components, which were labeled as Fr1-Fr7 according to the polarity of the obtained components from small to large;

[0028] 3) Comp...

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Abstract

The invention relates to a method for extracting and separating a compound ethyl-alpha-D-furan arabinose from a Nigella sativa seed, which comprises the following steps: selecting a dry Nigella sativaseed as a raw material, pulverizing, degreasing with petroleum ether, extracting with ethanol at room temperature, adding methanol into the extract, dissolving, stirring with silica gel, loading, eluting with dichloromethane and methanol to obtain seven components Fr1-Fr7, and continuously separating and purifying to obtain a compound pure product. The method disclosed by the invention is beneficial to better development and utilization of the medicinal plant, namely the Nigella sativa, and is beneficial to sustainable utilization of the plant; the extraction process is simple, the ethyl-alpha-D-furan arabinose compound monomer is easy to obtain, the solvent can be recycled, the extraction amount is large, and industrial production can be achieved.

Description

technical field [0001] The invention belongs to the technical field of plant extraction and separation, and in particular relates to a method for effectively and rapidly extracting and separating ethyl-α-D-arabinofuranofuranose from Nigella sativa seeds. Background technique [0002] Nigella sativa seeds are the dried seeds of Nigella sativa, a plant of the Ranunculaceae Nigella genus. It is native to Southwest Asia and widely distributed in the Mediterranean, Central Europe, West Asia and other places; its seed oil is used as edible oil in the Middle East and North African countries such as It is widely used in Egypt, and at the same time, it is also used in health food to fight diseases, and it is widely used in food. The main components of Nigellasativa seeds are flavonoids, saponins, alkaloids, steroids and phenols, etc., and also contain a lot of oil. Nigella sativa seeds have a variety of pharmacological effects, including antibacterial, antioxidant, anticancer, anti-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H1/08C07H15/04C13K13/00
CPCC07H1/08C07H15/04C13K13/00
Inventor 刘振花康文艺张岩马常阳牛云王贵生王莉屈娇娇
Owner HENAN UNIVERSITY
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