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A method for simultaneous extraction of oligomeric proanthocyanidins and tea saponin from camellia oleifera husk

A technology of oligomeric proanthocyanidins and camellia husks, which is applied in chemical instruments and methods, preparation of sugar derivatives, steroids, etc., can solve the problems of low added value of products, low conversion rate, and difficulty in industrialization, and achieves improved utilization. High yield and added value, high purity and yield, low cost effect

Active Publication Date: 2016-05-25
INST OF APPLIED CHEM JIANGXI ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Regarding the comprehensive utilization of tea husks, it is mainly used as primary fuel and cultivation of edible fungi at present, and a small part is used to manufacture activated carbon, furfural and other substances, but its annual comprehensive utilization rate is less than 1%. In terms of the overall status of tea husk comprehensive utilization In other words, the utilization rate of tea shells is low, and the products developed from tea shells have defects such as low added value, low conversion rate, and difficulty in industrialization.
[0004] At present, the research reports on proanthocyanidins are mainly limited to grape seeds, while the research on tea saponin is mainly based on tea meal, and there is no related report on the simultaneous extraction and separation of oligomeric proanthocyanidins and tea saponin from camellia oleifera husk

Method used

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  • A method for simultaneous extraction of oligomeric proanthocyanidins and tea saponin from camellia oleifera husk

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Experimental program
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Effect test

Embodiment 1

[0027] A method for synchronous extraction of oligomeric proanthocyanidins and tea saponin in Camellia oleifera husk, said method comprising the following steps:

[0028] (1), after drying the camellia oleifera husk at 50°C for 5 hours, crush it to 60 mesh and sieve;

[0029] (2), add 70% ethanol solution of 10ml / g to the pulverized material, carry out leaching at 55°C, the number of leaching times is 2 times, after the leaching is completed, the filtrate is collected by filtration, and the filtrate is concentrated under reduced pressure in a rotary evaporator at 45°C Until there is no alcohol smell, the remaining liquid is set aside.

[0030] (3), the remaining liquid obtained in step (2) is put on the macroporous resin column AB-8, and the effluent is collected for subsequent use. After the adsorption is completed, 10% ethanol solution is used for elution, and the eluent is concentrated and dried to obtain a tea saponin sample with a purity of more than 85%.

[0031] (4), ...

Embodiment 2

[0034] A method for synchronous extraction of oligomeric proanthocyanidins and tea saponin in Camellia oleifera husk, said method comprising the following steps:

[0035] (1), after drying the camellia oleifera shell at 70°C for 3 hours, crush it to 80 mesh and sieve;

[0036] (2), add 15ml / g of 90% ethanol solution to the pulverized material, extract at 60°C, the number of extractions is 3 times, filter and collect the filtrate after the extraction is completed, and concentrate the filtrate under reduced pressure in a rotary evaporator at 50°C Until there is no alcohol smell, the remaining liquid is set aside.

[0037] (3) Put the residual liquid obtained in step (2) on a macroporous resin column DM-130, and collect the effluent for future use. After the adsorption is completed, 30% ethanol solution is used for elution, and the eluate is concentrated and dried to obtain a tea saponin sample with a purity of more than 85%.

[0038] (4), the effluent obtained in step (3) cont...

Embodiment 3

[0041] A method for synchronous extraction of oligomeric proanthocyanidins and tea saponin in Camellia oleifera husk, said method comprising the following steps:

[0042] (1), after drying the camellia oleifera shell at 60°C for 4 hours, crush it to 70 mesh and sieve;

[0043] (2), add 12ml / g of 80% ethanol solution to the pulverized material, and extract at about 65°C, the number of extractions is 2 times, after the extraction is completed, filter and collect the filtrate, and the filtrate is decompressed at 55°C in a rotary evaporator Concentrate until there is no alcohol smell, and the remaining liquid is set aside.

[0044] (3), the remaining liquid obtained in step (2) is put on the macroporous resin column AB-8, and the effluent is collected for subsequent use. After the adsorption is completed, 20% ethanol solution is used for elution, and the eluate is concentrated and dried to obtain a tea saponin sample with a purity of more than 85%.

[0045] (4), the effluent obt...

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Abstract

The invention belongs to the technical field of extraction and separation of plant active components, and specifically relates to a method for synchronously extracting oligomeric proanthocyanidins and tea saponin from camellia oleifera husk; the inventive method is mainly through multi-stage leaching of camellia oleifera husk and series adsorption of macroporous resin , selective elution, recrystallization and other steps, and finally extract and separate oligomeric proanthocyanidins and tea saponin; compared with the prior art, the present invention realizes the synthesis of oligomeric proanthocyanidins and tea saponin in the same process Synchronous extraction and separation make the obtained product have the advantages of high yield and purity, and realize the comprehensive utilization of Camellia oleifera husk waste.

Description

technical field [0001] The invention belongs to the technical field of extraction and separation of plant active components, and in particular relates to a method for synchronous extraction of oligomeric proanthocyanidins and tea saponin in camellia oleifera shells. Background technique [0002] Camellia oleifera husk is the outer testa left after the kernel of camellia oleifera is removed. According to research reports, the main components of tea shells are lignin and pentosan. Regarding the comprehensive utilization of tea husks, it is mainly used as primary fuel and cultivation of edible fungi at present, and a small part is used to manufacture activated carbon, furfural and other substances, but its annual comprehensive utilization rate is less than 1%. In other words, the utilization rate of tea shells is low, and the products developed from tea shells have defects such as low added value, low conversion rate, and difficulty in industrialization. What is more notewort...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07J63/00C07H15/256C07H1/08C07D311/62
CPCC07D311/62C07H1/08C07H15/256C07J63/008
Inventor 熊伟李雄辉胡居吾王慧宾付建平朱仁果韩晓丹
Owner INST OF APPLIED CHEM JIANGXI ACAD OF SCI
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