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A method for extracting biflavonoids from bamboo and cypress from juniper pulp

A technology of bamboo and cypress double flavonoids and pine cone pulp, applied in the field of biomedicine, can solve the problems of low extraction rate of bamboo and cypress double flavonoids, and achieve the effects of environmental protection in the extraction process, reduction in extraction cost and simple operation.

Active Publication Date: 2018-02-16
杭州研谱科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a method for extracting biflavonoids from juniper pulp, which solves the problem of low extraction rate of biflavones in the prior art

Method used

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  • A method for extracting biflavonoids from bamboo and cypress from juniper pulp
  • A method for extracting biflavonoids from bamboo and cypress from juniper pulp
  • A method for extracting biflavonoids from bamboo and cypress from juniper pulp

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Embodiment 1

[0043] A kind of method of present embodiment extracts the biflavonoids of bamboo and cypress from juniper pulp, comprising the following steps:

[0044] (1) reflux extraction of juniper pulp with a volume fraction of 70% ethanol solution to obtain an extract, and concentrate the extract under reduced pressure to obtain a concentrate;

[0045] Specifically: 1. Weigh 10 kg of dried juniper pulp (particle size less than 0.5 cm), put it into a 200 L extraction tank, add 100 L of ethanol solution with a volume fraction of 70%, and stir evenly;

[0046] ② Turn on the jacket steam, heat until ethanol reflux, start timing, and reflux extraction for 1 hour;

[0047]3. After the reflux extraction is completed, the feed liquid is passed through a 400 mesh filter bag, the filtrate is taken for subsequent use, and 100 L of ethanol solution with a volume fraction of 70% is dropped into the filter residue again, and the reflux extraction is repeated for 1 h;

[0048] ④ After the reflux ext...

Embodiment 2

[0061] A kind of method of present embodiment extracts the biflavonoids of bamboo and cypress from juniper pulp, comprising the following steps:

[0062] (1) reflux extraction of juniper pulp with a volume fraction of 75% ethanol solution to obtain an extract, and concentrate the extract under reduced pressure to obtain a concentrate;

[0063] Specifically: 1. Take by weighing 300kg of dried juniper pulp (particle size is less than 0.5cm), put it into a 3000L extraction tank, add 2400L of ethanol solution with a volume fraction of 75%, and stir evenly;

[0064] ② Turn on the jacket steam, heat until ethanol reflux, start timing, and reflux extraction for 1 hour;

[0065] ③After the reflux extraction is completed, pass the feed liquid through a 400-mesh filter bag, take the filtrate for later use, and put 2400L of ethanol solution with a volume fraction of 75% into the filter residue again, and repeat the reflux extraction for 1h;

[0066] ④ After the reflux extraction is comp...

Embodiment 3

[0073] A kind of method of present embodiment extracts the biflavonoids of bamboo and cypress from juniper pulp, comprising the following steps:

[0074] (1) reflux extracting the juniper pulp with an ethanol solution with a volume fraction of 80%, to obtain an extract, and concentrating the extract under reduced pressure to obtain a concentrate;

[0075] Specifically: 1. take by weighing 200kg of dried juniper pulp (particle size is less than 0.5cm), put it into a 3000L extraction tank, add 2000L of ethanol solution with a volume fraction of 80%, and stir evenly;

[0076] ② Turn on the jacket steam, heat until ethanol reflux, start timing, and reflux extraction for 1 hour;

[0077] ③After the reflux extraction is completed, pass the feed liquid through a 400-mesh filter bag, take the filtrate for later use, and put 2000L of ethanol solution with a volume fraction of 80% into the filter residue again, and repeat the reflux extraction for 1h;

[0078] ④ After the reflux extrac...

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Abstract

The invention discloses a method for extracting podocar-pusflavone from juniper berry meal. The method comprises the steps that reflux extraction is performed on the juniper berry meal through an ethanol solution with the volume fraction of 70%-80% to obtain an extracting solution, and the extracting solution is concentrated under reduced pressure to obtain concentrate; the concentrate is diluted by adding water, solid-liquid separation is performed after standing is performed, and supernatant liquor is taken; the ethanol degree of the supernatant liquor is regulated to be 20%-30% through ethanol, solid-liquid separation is performed after standing is performed, and precipitates are taken; the precipitates are dissolved with a diluted hydrochloric acid solution and then added into a macroporous resin column, elution is performed with water until the pH value of effluent is neutral, then desorption is performed with the ethanol solution, a desorption solution is collected, and the desorption solution is concentrated under reduced pressure and dried to obtain a juniper berry meal extract. According to the method, the steps are simple and convenient, operation is easy, and the method is suitable for industrialized production; due to the fact that only water and ethanol are adopted as the solvent, not only is the cost greatly reduced, but also no stimulation or toxicity is basically generated to operating personnel and the environment; the content of podocar-pusflavone in the juniper berry meal extract reaches up to 30%-40%, and the extraction efficiency is high.

Description

technical field [0001] The invention belongs to the field of biomedicine, and in particular relates to a method for extracting bamboo and cypress diflavonoids from juniper pulp. Background technique [0002] Biflavones belong to flavonoids, which are dimers formed by the polymerization of two flavone derivatives, and can be composed of different types of flavone monomer compounds. Natural biflavonoids exist in various vascular plants such as Ginkgo biloba and Selaginella, and new biflavonoids can also be synthesized by chemical methods. With the continuous deepening of research at home and abroad, the cytotoxicity, anti-tumor, anti-virus, anti-bacterial, anti-inflammatory, anti-oxidation and vasodilation of bisflavonoids have attracted more and more people's attention. , health care products and medicine fields also have broad application prospects. [0003] Phyllostachys biflavone is an important class of biflavonoids, and the biflavones obtained from bamboo and cypress i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D311/30C07D311/40
CPCC07D311/30C07D311/40
Inventor 黄六仔
Owner 杭州研谱科技有限公司
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