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Green tea processing method and tea prepared thereby

A processing method and tea technology, which are applied in the field of green tea processing and the tea produced by the method, can solve the problems of insufficient research on traditional tea and lack of production methods, etc., and achieve good health care effects, high content of active substances, and mild conditions Effect

Inactive Publication Date: 2017-06-13
道中康(天津)文化传播有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the technology of low-caffeine tea beverage and instant tea powder is relatively mature, but the research on traditional tea with low caffeine content is not deep enough, and there is no simple and convenient production method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] a) picking fresh tea leaves, then sorting, and picking out impurities; then, adding an appropriate amount of ethanol solution with a concentration of 10 to 15% vol in an ultrasonic cleaning machine, soaking the tea leaves in the ethanol solution, and Soak for 30min;

[0057] Then, soak the tea leaves in an ultrasonic cleaning machine equipped with an appropriate amount of deionized water, and soak for 10 minutes under ultrasonic conditions;

[0058] b) Place the soaked tea leaves in an outdoor ventilated and cool place and spread them loosely. After the surface is dry, spread the tea leaves evenly. The thickness of the tea leaves is 3 cm, and the time for spreading them is 24 hours;

[0059] c) Put an appropriate amount of hot water into the water tank provided with water inlet and water outlet, and control the temperature of the hot water to be 92-93°C, then soak the tea leaves in the hot water and place them near the water outlet of the water tank;

[0060] Then, con...

experiment example 1

[0068] (1) Pesticide residue detection

[0069] Get the fresh tea leaves of the raw materials in Example 1 and the finished tea prepared by the method of Example 1 respectively, and detect the imidacloprid residues in the tea leaves respectively according to the standards described in GB / T23379-2009, the results are shown in the table below:

[0070] sample tea Imidacloprid residue (mg / g) raw fresh tea leaves 0.13 Embodiment 1 finished tea not detected

[0071] It can be seen that the method of the invention can effectively remove the pesticide residues in the tea leaves and improve the drinking safety of the tea leaves.

[0072] (2) Detection of active ingredients

[0073] Change step c) in the method of Example 1 to statically immerse the tea leaves in hot water at 92-93°C for 5 minutes, then cool, and directly knead for 15 minutes without pressure treatment, then proceed to step d), as a control group;

[0074] Take the raw fresh tea leaves in ...

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Abstract

The invention provides a green tea processing method and tea prepared thereby. The processing method provided by the invention comprises the steps of ethanol soaking, impregnation, pressure treatment and the like, can effectively remove caffeine and other components in tea, and simultaneously can retain tea polyphenol and other nutrient substances contained in the tea to the greatest extent. Meanwhile, the tea provided by the invention is low in caffeine content, is suitable for drinking by different people, and has a favorable health care effect.

Description

technical field [0001] The invention relates to the field of tea processing, in particular to a green tea processing method and tea leaves prepared by the method. Background technique [0002] Green tea is one of the main teas in my country. It is a drink made from new leaves or buds from tea trees, which are processed by killing, shaping and drying. Because it has not been fermented, green tea retains the natural components of fresh leaves and is rich in nutrients such as tea polyphenols, catechins, chlorophyll, amino acids and vitamins. These nutrients are useful for anti-aging, anti-cancer, anti-cancer, Anti-fatigue, lower cholesterol, prevent arteriosclerosis, etc. have special curative effects. Due to its good health care and disease prevention effects, tea is increasingly favored by consumers. [0003] However, because tea also contains caffeine that can excite the brain and stimulate the heart, some people with neurasthenia, pregnant women, children and people with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/36
Inventor 张茜
Owner 道中康(天津)文化传播有限公司
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