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Method for integrated separation and extraction of tea polysaccharide, theanine, polyphenol and caffeine

A tea polysaccharide and theanine technology, which is applied in the separation/purification of carboxylic acid amides, drug combination, metabolic diseases, etc., can solve the problems of large-scale industrial production limitation, variation of the molecular structure of the extract, and destruction of the biological activity of the extract, etc. Achieve the effects of good mechanical properties, less usage, and low production costs

Inactive Publication Date: 2010-08-11
晋江市恒源科技开发有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, applications such as gels, ion exchange resins, and supercritical devices have certain restrictions on large-scale industrial production.
However, microwave extraction may destroy the biological activity of the extract, or cause the molecular structure of the extract to change.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Commercially available FAU zeolite powder (silicon-aluminum ratio: 60) was processed into strips, activated in air at 550°C for four hours and cooled, then placed in deionized water, degassed by ultrasonic waves, and filled into an adsorption column. Adsorption column height: 45cm, inner diameter: 3cm, zeolite adsorbent loading capacity: 120g.

[0023] Green tea leaching concentrated solution (provided by a company in Fujian) 200ml, with hydrochloric acid-NaOH to adjust the pH value to 1-6. Pump the tea liquid to the adsorption column through a constant flow pump at room temperature, and adjust the flow rate to be stable at 3.0mL / min. After the tea liquid is pumped, immediately pump it into deionized water, and wash until the effluent is nearly colorless. Combine the adsorption mother liquor and water eluent (collection 1), add sodium chloride to precipitate the protein, and filter off the precipitate. The filtrate was passed through an ultrafiltration membrane (molecu...

Embodiment 2

[0028] Use commercially available FAU zeolite powder with a silicon-aluminum ratio of 15, process and shape it into pellets with a particle size of 1.5-2mm, roast at 600°C for 3.5 hours, and conduct hydrophobizing treatment at 120°C for 2-4 hours. Placed in deionized water, degassed by ultrasonic, loaded into adsorption column. Adsorption column height: 45cm, inner diameter: 3cm, zeolite adsorbent loading capacity: 121g. .

[0029] Weigh 5 grams of instant tea powder provided by a company in Fujian, and prepare 500 mL of 0.01 g / mL tea, adjust the pH value to 1-6 with hydrochloric acid-NaOH, and remove insoluble impurities by suction filtration. Adjust the flow rate to be stable at 6.0mL / min, pump 500mL of tea water solution containing tea polysaccharides to the adsorption column with a constant flow pump, after the tea water solution is exhausted, immediately pump in deionized water until the effluent is nearly colorless. The adsorption mother liquor was combined with the wa...

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PUM

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Abstract

The invention belongs to the technical field of deep tea processing, and particularly relates to a method for integrated separation and extraction of tea polysaccharide, theanine, polyphenol and caffeine, which comprises the following steps: making aqueous solution containing tea flow through an inorganic zeolite molecular sieve at the temperature of 5-75 DEG C, eluting the solution with water, ammonia solution, ethanol solution of 5-50 percent and ethanol of 50-100 percent in sequence, respectively collecting, processing and extracting eluent in each section to obtain crude products of tea polysaccharide, theanine, polyphenol and caffeine, and further purifying to obtain fine products. The invention realizes the integrated extraction of four components in tea leaves, the used adsorbent can be repeatedly regenerated and reused, the operating process is safety and simple, the energy consumption is low, and the production cost is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of tea deep processing, and in particular relates to a method for gradually separating and extracting active ingredients tea polysaccharide, theanine, tea polyphenol and caffeine from tea extract. Background technique [0002] Tea contains a variety of unique active ingredients with medicinal and health value, such as tea polyphenols, theanine, tea polysaccharides, and caffeine. Tea polyphenols have high-efficiency anti-cancer, cancer-curing, anti-oxidation, anti-harmful microorganisms and other medicinal effects. Caffeine has cardiotonic, diuretic, anti-oxidative effects, and has become an important pharmaceutical raw material and food and beverage additive. Theanine can antagonize the excitement of the nervous system caused by caffeine, relieve emotional tension, lower blood pressure, protect nerve cells, enhance the efficacy of anticancer drugs, inhibit cancer cell infiltration, and lose weight. Tea pol...

Claims

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Application Information

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IPC IPC(8): C08B37/00C07C237/06C07C231/24C07D311/62C07D473/12A61P35/00A61P39/06A61P31/00A61P9/00A61P7/10A61P25/00A61P9/12A61P3/04A61P17/16A61P7/02A61P3/10A61P37/04A61P9/10A61P3/06A61P29/00
Inventor 龙英才林德昌林金建
Owner 晋江市恒源科技开发有限公司
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