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Method for extracting tea saponin from oil tea cakes

A technology of camellia oil cake and tea saponin, which is applied in chemical instruments and methods, preparation of sugar derivatives, steroids, etc., can solve the problems of high solvent consumption, large investment and high production cost, and achieves simple and safe operation. The effect of low equipment investment and low production cost

Inactive Publication Date: 2010-10-20
邓培红 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the mid-to-late 1980s, there were more than 20 domestic production plants that used water as a solvent to extract tea saponin. Due to technical reasons, high energy consumption, low extraction rate, poor product quality, and high production costs, all of them were successively produced. discontinued
And extract tea saponin with organic solvent (methanol, ethanol), because organic solvent belongs to flammable and explosive chemicals, and investment is big, and solvent consumption is many (extract 1 ton of tea saponin, need consume 1 ton of solvent approximately), production The cost is also high, and it is affected by factors such as additives or operating conditions during the production process, resulting in changes in the structure of tea saponin and poor product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Pulverization: pulverize the camellia oleifera cake to 100 mesh;

[0017] (2) Enzyme removal: add an enzyme-removing agent equivalent to 0.5% of the Camellia oleifera cake weight, adjust the pH value to 8.0, and remove the enzyme in the Camellia oleifera cake;

[0018] (3) Leaching: the camellia oleifera cake material after deenzyme is added water leaching according to the weight ratio of camellia oleifera cake and water is 1: 5, leaching water temperature 40 ℃, leaching time 5 hours, centrifugation then, Obtain the extract; the slag is leached once repeatedly according to the process conditions and steps, and the extract obtained by the two centrifuges is combined;

[0019] (4) Multi-stage filtration to remove impurities: use a microfilter to carry out precision filtration of the extract obtained in step (3) to filter out impurities in the extract;

[0020] (5) Multi-stage membrane separation, purification and concentration: the filtrate obtained in step (4) is pu...

Embodiment 2

[0024] (1) Pulverization: Pulverize the camellia oleifera cake to 80 mesh;

[0025] (2) Enzyme removal: add an enzyme-removing agent equivalent to 0.4-0.6% of the camellia oleifera cake weight, adjust the pH value to 8.5, and remove the enzyme in the camellia oleifera cake;

[0026] (3) Lixiviation: add water to extract the camellia oleifera cake material after removing the enzyme according to the weight ratio of the camellia oleifera cake and water as 1: 4-6, the leaching water temperature is 36 ° C, the leaching time is 6 hours, and then centrifuged Separation to obtain the extract; the slag is extracted once according to the process conditions and steps repeatedly, and the extract obtained by the two centrifugal separations is combined;

[0027] (4) Multi-stage filtration to remove impurities: use a microfilter to carry out precision filtration of the extract obtained in step (3) to filter out impurities in the extract;

[0028] (5) multi-stage membrane separation, purific...

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Abstract

The invention relates to a method for extracting tea saponin from oil tea cakes. The method includes the following steps: (1) grinding; (2) dezymotization; (3) adding water with the temperature of 35 DEG C to 45 DEG C to extract the dezymotized oil tea cake for 4 to 6 hours; (4) using a microstainer to finely filter the extract obtained in step 3; (5) using a hyperfiltration membrane made of polyethersulfone resin to purify the filtrate obtained in step 4, and using a nanofiltration membrane made of polyethersulfone resin for dehydration and concentration; and (6) decolorization and spray drying. The method has the advantages of simple and safe operation, less equipment investment, low production cost and little energy consumption, the yield is more than 75 percent, the purity of the obtained tea saponin product is larger than or equal to 90 percent, and the method is suitable for industrialized production.

Description

technical field [0001] The invention relates to a method for extracting tea saponin from camellia oleifera cake, in particular to a method for extracting tea saponin from camellia oleifera cake with water as a solvent. Background technique [0002] Tea saponin (Thea Saponin), also known as tea saponin, is a class of natural glycoside compounds extracted from the Theaceae and Camellia plants. It is a pentacyclic triterpenoid saponin composed of ligand (qoH50q), sugar body and organic acid. [0003] Tea saponin is widely used in daily chemical work detergents (such as shampoo, silk and wool detergents, etc.), feed additives, emulsifiers, synergists, fungicides and insecticides for pesticides, in the pharmaceutical industry, veterinary In industry and beer industry, it is used as foaming agent and foam stabilizer, flotation agent in mineral processing industry, sensitizer and developing agent in film industry, etc. [0004] According to literature reports, the extraction meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J63/00C07H15/256C07H1/08
Inventor 邓培红张军
Owner 邓培红
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