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Method for purifying and separating tea polyphenol in waste tea leaves of Mengding tea

A separation method and technology of tea polyphenols, which are applied in the direction of pharmaceutical formulas, medical preparations containing active ingredients, plant/algae/fungus/moss components, etc., which can solve the problem of low production efficiency, low purity, and reduction of tea polyphenols. Solve problems such as phenol production cost, achieve the effect of saving production cost, reducing environmental pollution and improving safety

Inactive Publication Date: 2015-10-21
四川珍福堂商贸有限公司
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AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a method for purification and separation of tea polyphenols in waste tea leaves of Mengding tea, which overcomes the problem of low production efficiency and low purity of tea polyphenols in the background technology, reduces the production cost of tea polyphenols, and is more environmentally friendly. In line with the spirit of sustainable development

Method used

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Examples

Experimental program
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Embodiment Construction

[0020] A further detailed description will be given below through specific implementation examples.

[0021] Preparation of tea polyphenols crude extract:

[0022] A1. Drying: Lay the waste tea leaves of Mengding tea flat and dry them with a thickness of 1~3cm, and dry them for 1~3 days, and control the drying temperature at 20~24 degrees;

[0023] A2. Enzyme inactivation: steam the tea leaves after drying for 15-20 minutes, and control the temperature at 90-95°C to inhibit and inactivate residual enzymes;

[0024] A3. Rough extraction: add boiling water 8-10 times the weight of tea leaves, extract 2-3 times, 55-60 minutes each time, filter, combine extracts, and cool naturally;

[0025] Preparation of pure tea polyphenols:

[0026] B1. Dissolving: add the tea polyphenol crude extract to the sodium chloride solution, and adjust the pH to 7;

[0027] B2. Centrifugation: Centrifugation to remove granular impurities;

[0028] B3. Separation: use polyamide as the adsorbent for...

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Abstract

The invention relates to the technical field of beverages, in particular to a method for purifying and separating tea polyphenol from waste tea leaves of Mengding tea. The method has the advantages that through the matched use of technologies such as extraction, filtering and adsorption chromatography, the coarse product extraction of the tea polyphenol is firstly carried out; then, the purification is carried out to obtain a pure product; the tea polyphenol content of the pure product is higher than 95 percent; the problems of low production efficiency and low purity of the tea polyphenol in the prior art are solved; the production cost of the tea polyphenol is reduced; a better environment-friendly effect is achieved; the method conforms to the sustainable development spirit.

Description

technical field [0001] The invention relates to the technical field of natural product extraction, in particular to a method for purifying and separating tea polyphenols from waste Mengding tea leaves. Background technique [0002] Tea Polyphenols is the general term for polyphenols in tea, including flavanols, anthocyanins, flavonoids, flavonols and phenolic acids. It is mainly flavanols (catechins), and catechins account for 60% to 80%. Tea polyphenols, also known as tea tannin or tea tannin, are one of the main components that form the color and aroma of tea, and are also one of the main components that have health care functions in tea. Studies have shown that tea polyphenols contain multiple phenolic hydroxyl groups, so they have detoxification and anti-radiation effects. They can effectively prevent radioactive substances from invading the bone marrow, and can quickly excrete strontium 90 and cobalt 60 from the body. Nemesis". As an additive, tea polyphenols are wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/82A61P35/00A61P39/02A61P39/00A23L1/30C07G99/00C07D311/62
Inventor 周宏林
Owner 四川珍福堂商贸有限公司
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