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Preparation method of theaflavins-rich black tea

A technology of theaflavins in black tea and theaflavins, which is applied in tea treatment before extraction, etc., can solve the problems of low theaflavins content, difficulty in increasing theaflavins in black tea, and high extraction cost, and achieve high nutritional value and effective Good for accumulation, high content of theaflavins

Inactive Publication Date: 2018-07-24
罗来辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional processing methods in the past were difficult to increase the content of theaflavins in black tea. Because the content of theaflavins in tea leaves is extremely low, the extraction cost is extremely expensive. So far, no efficient and rapid processing technology for increasing theaflavins in black tea has been seen.

Method used

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  • Preparation method of theaflavins-rich black tea

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preparation example Construction

[0023] A kind of preparation method of high theaflavin black tea of ​​the present invention comprises the following steps:

[0024] (1) Picking leaves: select one bud, two leaves and three leaves of the detached fresh tea leaves picked from the tea tree on the same day as raw materials.

[0025] (2) Withering: Spread the picked raw materials evenly on the leaf curtain of the withering trough, spread 4-6 kg of leaves per square meter, and the thickness of the spread leaves is 18-20 cm, and carry out natural wind blowing withering. Light~blue light~yellow light are irradiated alternately, the wavelength of red light is 635~650nm; the wavelength of blue light is 450~460nm; the wavelength of yellow light is 595~600nm; The total time of light-changing withering is 6-8 hours, and the light intensity is 2100-2500 lux. After the light compensation treatment, the traditional no-light compensation withering is carried out, and the total time is 2-3 hours; during the whole withering proc...

Embodiment 1

[0031] A kind of preparation method of high theaflavin black tea of ​​the present invention comprises the following steps:

[0032] (1) Picking leaves: select one bud, two leaves and three leaves of the detached fresh tea leaves picked from the tea tree on the same day as raw materials.

[0033] (2) Withering: Spread the picked raw materials evenly on the leaf curtain of the withering trough, spread out 4kg of leaves per square meter, and the thickness of the spread leaves is 18-20cm. Blue light~yellow light is irradiated alternately, the wavelength of red light is 635~640nm; the wavelength of blue light is 450~453nm; the wavelength of yellow light is 595~596nm; The duration is 6 hours, and the light intensity is 2100-2200 lux. After the light compensation treatment, the traditional no-light compensation withering is carried out. Until the water content of the leaves is 70-72%, the withered leaves are obtained.

[0034] (3) Kneading: Put the withered leaves into the kneading m...

Embodiment 2

[0039] A kind of preparation method of high theaflavin black tea of ​​the present invention comprises the following steps:

[0040] (1) Picking leaves: select one bud, two leaves and three leaves of the detached fresh tea leaves picked from the tea tree on the same day as raw materials.

[0041] (2) Withering: spread the picked raw materials evenly on the leaf curtain of the withering trough, spread the leaves 5kg per square meter, and the thickness of the spread leaves is 18-20cm, carry out natural wind blowing and wither, and use red light in turn during the withering process. Blue light~yellow light is irradiated alternately, the wavelength of red light is 640~645nm; the wavelength of blue light is 453~456nm; the wavelength of yellow light is 596~598nm; The duration is 7 hours, and the light intensity is 2200-2350 lux. After the light compensation treatment, the traditional no-light compensation withering is carried out, and the total time is 2.5 hours. During the whole wit...

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Abstract

The invention discloses a preparation method of theaflavins-rich black tea, and belongs to the technical field of preparation of black tea. The preparation method is characterized by comprising the following steps: (1) picking leaves; (2) withering: evenly spreading the picked fresh leaf raw material on a leaf containing curtain of a withering trough, introducing natural wind, and using red light,blue light and yellow light to perform light compensation withering treatment in different time periods to obtain withered leaves; (3) rolling: putting the withered leaves into a rolling machine forrolling, and horizontally cutting the rolled leaves in a horizontal cutting machine to obtain rolled cut leaves; (4) unblocking; (5) fermenting: putting the rolled leaves, subjected to unblocking, into a fermentation chamber for carrying out stacking fermentation, and introducing negative oxygen ions in a fermentation process so as to obtain tea base; (6) drying: firstly, carrying out high-temperature inactivation and drying on the tea base, then drying sequentially by using gross fire and full fire, and spreading for cooling to obtain raw tea of the theaflavins-rich black tea. The invention aims at providing the preparation method, which is scientific in process and optimized in process, of the theaflavins-rich black tea; the method is used for preparing the theaflavins-rich black tea.

Description

technical field [0001] The present invention relates to a kind of black tea preparation technology, more specifically, relate to a kind of preparation method of high theaflavin black tea especially. Background technique [0002] Black tea is the main variety of tea drinks in the world. At present, the output and trade volume of black tea in the world rank first among all kinds of tea. With the in-depth research on the relationship between tea and human health, tea pigment has become the functional component of tea that people focus on research and development. Theaflavin is the first time to find a compound with definite pharmacological effects from tea. After clinical trials, it has been verified that theaflavin has the effect of regulating blood lipids and preventing cardiovascular diseases. It is known as the "soft gold" tea yellow in tea. Known as the unique function of lowering blood lipids, and has no toxic side effects, it can not only combine with cholesterol in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/06A23F3/08A23F3/12
CPCA23F3/06A23F3/08A23F3/12
Inventor 罗来辉
Owner 罗来辉
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