Method for enriching and purifying black nightshade polysaccharide and black nightshade polysaccharide obtained through method

A technology of nightshade and polysaccharides, applied in the field of nightshade polysaccharides, can solve the problems of low purity of nightshade polysaccharides, and achieve the effects of enrichment purity improvement, simple process, efficiency, economy and environmental protection

Inactive Publication Date: 2018-05-18
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The first purpose of the present invention is to provide a method for enriching and purifying Solanum nigrum polysaccharides, so as to alleviate the problem of low purity of Solanum nigrum polysaccharides obtained by the purification process of the prior art

Method used

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  • Method for enriching and purifying black nightshade polysaccharide and black nightshade polysaccharide obtained through method
  • Method for enriching and purifying black nightshade polysaccharide and black nightshade polysaccharide obtained through method
  • Method for enriching and purifying black nightshade polysaccharide and black nightshade polysaccharide obtained through method

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preparation example Construction

[0082] As a preferred embodiment of the present invention, the preparation method of the Solanum nigrum crude polysaccharide comprises the following steps: using Solanum nigrum as a raw material, extracting it by hot water extraction, microwave extraction, ultrasonic extraction or flash extraction; preferably , the raw material includes any one or a combination of at least two of Solanum solanum herb, Solanum solanum decoction pieces, Solanum solanum root, Solanum solanum stem, Solanum solanum leaf or Solanum solanum fruit; Preferably, the Solanum solanum crude polysaccharide The preparation method comprises the following steps: crushing and degreasing the nightshade raw material, adding water and performing flash extraction to obtain an extract, and the extract is separated, concentrated and dried to obtain the Solanum solanum crude polysaccharide; preferably, a drying step is included before crushing; Preferably, the drying temperature is 40-60°C; preferably, the crushed raw ...

Embodiment 1

[0092] This embodiment is a method for enriching and purifying Solanum nigrum polysaccharides, comprising the following steps:

[0093] Step a) Extraction of Solanum nigrum crude polysaccharide: Weigh Solanum nigrum decoction pieces, dry at 50°C, crush and pass through a 40-mesh sieve, add petroleum ether in an amount 4 times the weight of the Solanum nigrum raw material, and reflux at 50°C for 2 hours; perform 2 times of reflux defatting in total Finally, discard the liquid and leave the residue, dry the dregs in the air, place them in a flash extractor and add water 30 times the weight of the dregs for flash extraction, the extraction voltage is 80V, and extract for 2 minutes; perform 2 flash extractions and then combine the extractions Liquid, filtered, concentrated under reduced pressure to 1 / 2 of the amount of medicinal materials, centrifuged to take the supernatant, added ethanol to the supernatant until the alcohol content was 80%, refrigerated at 4°C for overnight preci...

Embodiment 2

[0100] This embodiment is a method for enriching and purifying Solanum nigrum polysaccharides, comprising the following steps:

[0101] Step a) Extraction of Solanum nigrum crude polysaccharide: Weigh Solanum nigrum decoction pieces, dry at 50°C, crush and pass through a 40-mesh sieve, add petroleum ether in an amount 4 times the weight of the Solanum nigrum raw material, and reflux at 50°C for 2 hours; perform 2 times of reflux defatting in total Finally, discard the liquid and leave the residue, dry the dregs in the air, place them in a flash extractor and add water 30 times the weight of the dregs for flash extraction, the extraction voltage is 80V, and extract for 2 minutes; perform 2 flash extractions and then combine the extractions Liquid, filtered, concentrated under reduced pressure to 1 / 2 of the amount of medicinal materials, centrifuged to take the supernatant, added ethanol to the supernatant until the alcohol content was 80%, refrigerated at 4°C for overnight preci...

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Abstract

The invention provides a method for enriching and purifying black nightshade polysaccharide and black nightshade polysaccharide obtained through the method, and relates to the extraction and purification field of black nightshade polysaccharide. The method comprises: adopting a macroporous resin to adsorb black nightshade polysaccharide and desorbing the macroporous resin which adsorbs black nightshade polysaccharide. According to the method, the problem that black nightshade polysaccharide obtained via purification technology in the prior art is low in purity is overcome, and the purity of black nightshade polysaccharide is improved.

Description

technical field [0001] The invention relates to the technical field of extracting and purifying Solanum nigrum polysaccharides, in particular to a method for enriching and purifying Solanum nigrum polysaccharides and Solanum nigrum polysaccharides obtained by the method. Background technique [0002] Solanum nigrum is the dried whole plant of Solanum nigrum L., a herb of the family Solanaceae. It is poisonous, cold in nature and slightly sweet in taste. The main components of Solanum nigrum are alkaloids, polysaccharides, saponins, etc. Modern studies have reported that polysaccharides from Solanum nigrum have anti-tumor, immune regulation, and liver protection effects, but the purification of general polysaccharides is difficult, and the purification method is more complicated, and the use of current The purity of the Solanum nigrum polysaccharide obtained by the preparation method is relatively low, generally around 40%. [0003] In view of this, the present invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 黄越燕杨鑫骥张洁孙李丹计燕萍朱琦峰
Owner JIAXING UNIV
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