Process for extracting tea polyphenol, caffeine as a byproduct thereof and tea polysaccharide from tea

A technology of caffeine and tea polyphenols, which is applied in the field of extracting tea polyphenols by-products of caffeine and tea polysaccharides, can solve the problems of toxic solvent residues, etc., and achieve the effects of improving extraction rate, significant effect, and increasing diffusion area
CN1699586AInactive Publication Date: 2005-11-23NORTHWEST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHWEST UNIV
Publication Date
2005-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed is a process for extracting tea polyphenol, caffeine as a byproduct thereof and tea polysaccharide from tea, which comprises, (1) extracting active ingredients including tea polyphenol, caffeine and tea polysaccharide from the tea through composite enzymolysis abstraction and water abstraction, (2) filtering the raffinate with hyperfiltration membrane, (3) subjecting the membrane compression liquid to ethanol deposition so as to obtain crude polysaccharides, removing protein and carrying out ethanol deposition, drying to obtain the tea polysaccharides, (4) separating and purifying through second level resin adsorption chromatography, thus obtaining tea polyphenol as well as caffeine as by-product.
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Description

technical field

[0001] The invention relates to a process for extracting tea polyphenols from tea leaves to by-product caffeine and tea polysaccharides. Background technique

[0002] Tea polyphenols are natural, multi-functional, high-efficiency, excellent antioxidants and free radical scavengers. The health functions of tea polyphenols mainly include eliminating free radicals in the body, anti-aging and anti-cancer, anti-radiation, antibacterial, and sterilizing, etc. . Caffeine excites the central nervous system, and has physiological and health functions such as strengthening the heart, diuresis, and detoxification, and is an important raw material for medicine, health care products, and beverages. Tea polysaccharide has various pharmacological effects such as lowering blood sugar, lowering blood fat, anticoagulation, antithrombosis, resistance to hypoxia, enhancing body immunity, anti-inflammation, and anti-cancer. Functional natural medicine.

[0003] At present, th...

Claims

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