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Resin extraction process of high-purity tea polyphenol

An extraction process and technology for tea polyphenols are applied in the field of resin extraction process of high-purity tea polyphenols, and can solve the problems of incomplete extraction of tea polyphenols, low extraction efficiency, and difficulty in obtaining high-purity tea polyphenol products.

Inactive Publication Date: 2017-12-15
广西克鲁尼茶叶生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented method allows for more precise control during processing than existing techniques that require expensive equipment or complicated processes like solvent extractions. It achieves this through various technical means such as physical separating out unwanted components from green teas before performing chemical reactions with other ingredients.

Problems solved by technology

Technological Problem: This patented solution involves extracting tea polyphenoes with different techniques like solvation extraction, acid/base treatment, ultraviolet light irritating technique, micro wave energy activation, and other processes. These improvements make them more effective at removing unwanted materials while maintaining their beneficial properties.

Method used

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  • Resin extraction process of high-purity tea polyphenol
  • Resin extraction process of high-purity tea polyphenol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A resin extraction process for high-purity tea polyphenols, comprising the following steps:

[0042] (1) Coarse separation of impurities:

[0043] A1: Heat the tea leaves to 280°C with microwave ovens and keep them for 3 minutes to inactivate the enzymes;

[0044] A2: Extract tea leaves with 70% ethanol solution, crush them with a dumb jaw crusher, cut and crush the tea leaves to a mesh size of 110-120 mesh, filter, repeat more than two times, and combine the filtrate;

[0045] A3: Maintain the temperature at 35-45°C, stir the filtrate and evaporate under negative pressure until the ethanol is basically volatilized;

[0046] A4: Hydration: add pure water to the solid-liquid mixture after step A3 until the solid is completely dissolved;

[0047] A5: Use chloroform to extract the filtrate, separate the liquid, remove the chloroform extraction layer, and keep the aqueous solution layer;

[0048] A6: Repeat step A5 more than twice, and combine the aqueous solution layer;...

Embodiment 2

[0064] A resin extraction process for high-purity tea polyphenols, comprising the following steps:

[0065] (1) Coarse separation of impurities:

[0066] A1: Heat the tea leaves to 260°C by microwave and keep for 4 minutes to inactivate the enzyme;

[0067] A2: Extract tea leaves with 70% ethanol solution, crush them with a hammer mill, cut and crush the tea leaves to a mesh size of 180-230 mesh, filter, repeat more than two times, and combine the filtrates;

[0068] A3: Maintain the temperature at 35-45°C, stir the filtrate and evaporate under negative pressure until the ethanol is basically volatilized;

[0069] A4: Hydration: add pure water to the solid-liquid mixture after step A3 until the solid is completely dissolved;

[0070] A5: Use chloroform to extract the filtrate, separate the liquid, remove the chloroform extraction layer, and keep the aqueous solution layer;

[0071] A6: Repeat step A5 more than twice, and combine the aqueous solution layer;

[0072] A7: Maint...

Embodiment 3

[0087] A resin extraction process for high-purity tea polyphenols, comprising the following steps:

[0088] (1) Coarse separation of impurities:

[0089] A1: Clean the tea leaves with a tea washing machine, then heat the tea leaves to 270°C with microwaves, and keep them for 3.5 minutes to inactivate the enzymes;

[0090] A2: Leach tea leaves with 70% ethanol solution, crush them with an ultrafine pulverizer, cut and crush the tea leaves to a mesh size of 240-280 mesh, filter, repeat more than two times, and combine the filtrates;

[0091] A3: Maintain the temperature at 35-45°C, stir the filtrate and evaporate under negative pressure until the ethanol is basically volatilized;

[0092] A4: Hydration: add pure water to the solid-liquid mixture after step A3 until the solid is completely dissolved;

[0093] A5: Use chloroform to extract the filtrate, separate the liquid, remove the chloroform extraction layer, and keep the aqueous solution layer;

[0094] A6: Repeat step A5 ...

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Abstract

The invention discloses a resin extraction process of high-purity tea polyphenol. Tea polyphenol is efficiently extracted by combining a solvent extraction process and a resin adsorption process; impurities are maximally eliminated finally by the processes of crude separation of the impurities, coarse extraction with ethanol solution, moisturizing, resin extraction, impurity elimination with a solvent, standing for deslagging at low temperature and the like, so that the effective content and the degree of purity of tea polyphenol are remarkably improved, and an effect of reducing the residual quantity of a harmful solvent is achieved, and the resin extraction process is safe.

Description

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Claims

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Application Information

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Owner 广西克鲁尼茶叶生物科技有限公司
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