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A kind of tea saponin extraction and refining process

A tea saponin and process technology, applied in the field of tea saponin extraction and refining process, can solve the problems of difficult separation of impurities, high refining difficulty, low tea saponin purity, etc., and achieve the effect of improving the purity

Active Publication Date: 2021-08-03
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problems that the existing water extraction method or water-containing alcohol extraction method is difficult to separate impurities with similar polarity to tea saponin in the raw material, and the difficulty in later stage refining results in low purity of the extracted tea saponin, the present invention proposes a A new tea saponin extraction and refining process, the technical scheme adopted is as follows:

Method used

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  • A kind of tea saponin extraction and refining process

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Effect test

Embodiment 1

[0023] The present embodiment provides a tea saponin extraction and refining process, and the refining process is carried out according to the following steps:

[0024] (1) Raw material pretreatment: the camellia oleifera seed meal was dried in an oven at 60° C. for 24 hours, and pulverized through a 60-mesh sieve to obtain a raw material powder, and 50 grams of the raw material powder was taken for later use;

[0025] (2) the product obtained in the step (1) is 1:5 (g / mL) and 250 mL of water is added according to the weight-to-volume ratio of the material to liquid, and the mixture is uniformly stirred;

[0026] (3) the temperature of the feed liquid in the adjustment step (2) is 80°C, and the heat preservation treatment (ie, water extraction) is carried out for 2h;

[0027] (4) After the step (3) is kept for another 0.5h, the feed liquid (water extraction solution) is turned on to circulate on the shell side of the membrane module, and a microfiltration device is added to th...

Embodiment 2

[0031] Example 2 (change the ratio of material to water = on the basis of Example 1, change the ratio of extractant and water extract)

[0032] The present embodiment provides a tea saponin extraction and refining process, and the refining process is carried out according to the following steps:

[0033](1) Raw material pretreatment: the camellia oleifera seed meal was dried in an oven at 60° C. for 24 hours, and pulverized through a 60-mesh sieve to obtain raw material powder, and 50 grams of raw material powder was obtained for use;

[0034] (2) the product obtained in the step (1) is 1:3 (g / mL) according to the material-to-liquid weight-to-volume ratio, adds 150 mL of water, and stirs evenly;

[0035] (3) the temperature of the feed liquid in the adjustment step (2) is 80°C, and the heat preservation treatment (ie, water extraction) is carried out for 2h;

[0036] (4) After the step (3) is kept for another 0.5h, the feed liquid (water extraction solution) is turned on to c...

Embodiment 3

[0040] Example 3 (on the basis of Example 1, the ratio of extractant to water extract becomes larger)

[0041] The present embodiment provides a tea saponin extraction and refining process, and the refining process is carried out according to the following steps:

[0042] (1) Raw material pretreatment: the camellia oleifera seed meal was dried in an oven at 60° C. for 24 hours, and pulverized through a 60-mesh sieve to obtain a raw material powder, and 50 grams of the raw material powder was taken for later use;

[0043] (2) the product obtained in the step (1) is 1:5 (g / mL) and 250 mL of water is added according to the weight-to-volume ratio of the material to liquid, and the mixture is uniformly stirred;

[0044] (3) the temperature of the feed liquid in the adjustment step (2) is 80°C, and the heat preservation treatment (ie, water extraction) is carried out for 2h;

[0045] (4) After the step (3) is kept for another 0.5h, the feed liquid (water extraction solution) is tur...

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Abstract

The invention discloses a process for extracting and refining tea saponin, which belongs to the technical field of tea saponin extraction. The method is to carry out water extraction on the raw material powder, and make the water extraction solution circulate on one side of the membrane module, and at the same time set the extraction agent on the other side of the membrane module and circulate the extraction agent, and apply pressure on both sides of the membrane module Make the pressure on the side of the extraction agent and the pressure on the side of the water extraction solution both positive. When the membrane module uses a hydrophobic membrane, keep the pressure on the side of the extraction agent lower than the pressure on the side of the water extraction solution for extraction. When the membrane module uses When the film is hydrophilic, keep the pressure on the side of the extractant higher than the pressure on the side of the water extraction solution for extraction. After the extraction is completed, the phase of the extractant is dried, and the solvent is removed to obtain tea saponin. The tea saponin obtained by the refining process has high purity, solves the problem of low purity of the existing tea saponin extraction process, and is suitable for industrial extraction of tea saponin.

Description

technical field [0001] The invention relates to a tea saponin extraction and refining process, and belongs to the technical field of tea saponin extraction. Background technique [0002] Camellia oleifera is a unique edible oil tree species in my country, and my country is also the country with the largest cultivation area of ​​Camellia oleifera in the world. According to my country's "National Camellia Oil Industry Development Plan (2009-2020)", according to the development planning goals of Camellia oleifera industry, by 2020, the total scale of Camellia oleifera planting in my country can reach 70 million mu. By the end of 2017, China's camellia planting area had expanded to 65.5 million mu, with an annual output of about 380,000 tons of tea seed oil. Tea meal is a by-product of camellia oleifera fruit after oil extraction, with an annual output of about 200,000 tons. Tea meal resources are abundant. [0003] Tea meal contains 10%-16% tea saponin, and also rich in poly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07J63/00
CPCC07J63/008
Inventor 王建勋侯同刚咸漠董晴晴荀明月张同
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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