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Method for processing high-GABA (Gamma-aminoacid butyric acid) low-caffeine black tea powder

A technology of low-caffeine black tea and a processing method, which is applied in the directions of tea, tea extraction, tea treatment before extraction, etc., can solve problems such as affecting sleep quality, and achieve the effect of high GABA content and low caffeine content

Inactive Publication Date: 2018-10-09
DAMIN FOODSTUFF ZHANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Caffeine has an excitatory effect. If the content of caffeine in black tea powder is high, people will be easily excited after drinking it and will not be able to sleep at night, which will affect the quality of sleep.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A kind of processing method of high GABA, low caffeine black tea powder, comprises preparation black tea crushed tea, supercritical CO 2 Decaffeinated, extracted and freeze-dried;

[0059] The steps for preparing crushed black tea are as follows:

[0060] 1-1: Soak fresh black tea leaves with 1.5% glutamic acid aqueous solution for 4.5 hours;

[0061] 1-2: Wash the soaked fresh black tea leaves with water, and then dehydrate to remove the surface moisture of the fresh black tea leaves;

[0062] 1-3: Naturally wither the dehydrated fresh black tea leaves to tea leaves with a water content of 60%; the ambient temperature of the natural withering is 28°C, and the ambient humidity is 70%;

[0063] 1-4: Knead the tea leaves until the cell damage rate exceeds 80%, and more than 90% of the leaves are formed into strips, and the kneading time is 70 minutes;

[0064] 1-5: Ferment the rolled tea leaves in the fermentation room for 4.5 hours, the fermentation temperature is 22°...

Embodiment 2

[0080] A kind of processing method of high GABA, low caffeine black tea powder, comprises preparation black tea crushed tea, supercritical CO 2 Decaffeinated, extracted and freeze-dried;

[0081] The steps for preparing crushed black tea are as follows:

[0082] 1-1: Soak fresh black tea leaves with 1% glutamic acid aqueous solution for 6 hours;

[0083] 1-2: Wash the soaked fresh black tea leaves with water, and then dehydrate to remove the surface moisture of the fresh black tea leaves;

[0084] 1-3: Naturally wither the dehydrated fresh black tea leaves to tea leaves with a water content of 55%; the ambient temperature of the natural withering is 25°C, and the ambient humidity is 60%;

[0085] 1-4: Knead the tea until the cell damage rate is above 80%, and the leaves are more than 90% into strips; the kneading time is 60 minutes;

[0086] 1-5: Put the rolled tea leaves in the fermentation room for 3 hours to ferment, the fermentation temperature is 25°C, the fermentation...

Embodiment 3

[0102] A kind of processing method of high GABA, low caffeine black tea powder, comprises preparation black tea crushed tea, supercritical CO 2 Decaffeinated, extracted and freeze-dried;

[0103] The steps for preparing crushed black tea are as follows:

[0104] 1-1: Soak fresh black tea leaves with 2% glutamic acid aqueous solution for 3 hours;

[0105] 1-2: Wash the soaked fresh black tea leaves with water, and then dehydrate to remove the surface moisture of the fresh black tea leaves;

[0106] 1-3: Naturally wither the dehydrated fresh black tea leaves to tea leaves with a moisture content of 65%; the ambient temperature of the natural withering is 30°C, and the ambient humidity is 80%;

[0107] 1-4: Knead the tea until the cell damage rate is above 80%, and the leaves are more than 90% into strips; the kneading time is 80 minutes;

[0108] 1-5: Put the rolled tea leaves in the fermentation room to ferment for 6 hours, the fermentation temperature is 20°C, the fermentat...

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Abstract

The invention discloses a method for processing high-GABA (Gamma-aminoacid butyric acid) low-caffeine black tea powder. The method comprises the following steps: preparing crushed black tea, performing supercritical CO2 decaffeination, extracting and freeze-drying. The prepared black tea powder has the characteristics of high GABA content and low caffeine content.

Description

technical field [0001] The invention relates to a processing method of black tea powder, in particular to a processing method of high GABA and low caffeine black tea powder. Background technique [0002] Black tea powder made by traditional processing methods has low GABA content and high caffeine content. GABA has the physiological effects of sedative, hypnotic, anticonvulsant, and blood pressure lowering. The content of GABA in black tea powder made by general processing methods is low, and the effect is limited. Caffeine has an excitatory effect. If the content of caffeine in black tea powder is high, people will be easily excited after drinking it and will not be able to sleep at night, which will affect the quality of sleep. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a kind of processing method of high GABA, low caffeine black tea powder. [0004] To achieve the above object, t...

Claims

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Application Information

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IPC IPC(8): A23F3/18A23F3/22A23F3/36A23F3/26A23F3/06
CPCA23F3/06A23F3/18A23F3/22A23F3/26A23F3/36
Inventor 林汉杰吴庆山洪荣艺李国辉张晓辉
Owner DAMIN FOODSTUFF ZHANGZHOU CO LTD
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