Withering device and withering method of Gongfu black tea with intermittent circulation light

A withering device, the technology of Gongfu black tea, applied in the field of intermittent cyclic light withering device of Gongfu black tea, can solve the problems of slow protein degradation, insufficient freshness of black tea, and low aroma, so as to speed up water loss and balance, avoid adverse effects, and improve taste sweet effect

Active Publication Date: 2020-02-21
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the indoor natural withering and withering in the withering tank solve the problem of limiting the black tea withering production due to the influence of weather, due to the lack of light in the room, the activation of the relevant metabolic enzymes is reduced, the protein degradation is slow, and the content of free amino acids produced is low; The enzymatic oxidation and degradation of glycosides and lipid aroma precursors is less, resulting in less freshness and low aroma of the made black tea
[0004] At present, in order to process flower-flavored and high-flavored black tea, sunlight withering has been used for production. However, sunlight is full-wavelength light, and different wavelengths of light have different effects on the metabolism of tea withering. Improper control of the light process can easily lead to sun exposure. The "sun flavor" of black tea affects the aroma and taste quality of black tea
At the same time, daylight is not controlled by human beings and cannot meet all-weather production

Method used

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  • Withering device and withering method of Gongfu black tea with intermittent circulation light
  • Withering device and withering method of Gongfu black tea with intermittent circulation light

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, with reference to figure 1 , figure 2 As shown, the Gongfu black tea intermittent circulation lighting withering device includes the withering device and several LED light sources and alarm devices that are movably connected to the withering device. Each LED light source includes several red light units and several blue light units. The light unit is electrically connected to the red light drive circuit, the blue light unit is electrically connected to the blue light drive circuit, the red and blue light drive circuits are electrically connected to the control system, and the alarm device is connected to the control system. The red illuminating units and the blue illuminating units are arranged at intervals in an array, that is, the red illuminating units are surrounded by blue illuminating units, and the blue illuminating units are surrounded by red illuminating units.

[0036] The withering device of the present invention can adopt the withering frame....

Embodiment 2

[0046] (1) Same as embodiment 1.

[0047] (2) Pick fresh Jiukeng species with one bud and one leaf as the raw material. After removing impurities, spread it evenly on the plate with a thickness of 2~3cm, and place it on the withering rack facing the light source. Set the temperature of withering environment at 28°C and relative humidity at 55%, and keep it stable.

[0048] (3) Set the control system of the black tea intermittent cycle light withering device, the light intensity of the red light unit irradiating the leaf surface is 800lux, and the light intensity of the blue light unit irradiating the leaf surface is 800lux; in the black tea intermittent cycle light withering device It is set in the control system that the red light unit is on for 1 hour first, and then the blue light unit is on for 0.5 hours. When the blue light unit is on, the red light unit is turned off. After the blue light source finishes lighting, it enters the light intermittent period. 1h, manual stir...

Embodiment 3

[0055] (1) Same as embodiment 1.

[0056] (2) Pick fresh single buds of Jiukeng species as raw materials, remove impurities and spread them evenly on the plate with a thickness of 2~3cm, and place them on the withering rack facing the light source. Set the temperature of withering environment to 35°C and relative humidity to 70%, and keep it stable.

[0057] (3) Set the control system of the black tea intermittent cycle light withering device, the light intensity of the red light unit irradiating the leaf surface is 2000lux (or 3000, 1500, etc.), and the light intensity of the blue light unit irradiating the leaf surface is 1000lux (It can also be 3000, 1500, etc.); set in the control system of the black tea intermittent cycle light withering device, the red light unit is first on for 1.5h (it can also be 3h, 4h), and then the blue light unit is on for 0.5h (can be 2h, 3h), when the blue light unit is on, the red light unit is off, and the blue light source enters the light i...

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Abstract

The invention relates to a kungfu black tea intermittent cyclic-lighting withering apparatus and a withering method, and belongs to the technical field of tea processing. The apparatus comprises a withering apparatus body provided with an LED light source. The LED light source includes red lighting units and blue lighting units, which are spaced in an array manner. The red lighting units and blue lighting units are electrically connected to independent driving circuits, which are electrically connected to a control system. Through using the apparatus, withering becomes uniform by performing red lighting, blue lighting, and stirring during intermission. Prepared black tea smells fragrant, has lasting fragrance, and tastes sweet and mellow.

Description

technical field [0001] The invention relates to an intermittent cyclic light withering device and a withering method for Gongfu black tea, belonging to the technical field of tea processing. Background technique [0002] Black tea production and consumption rank first in the world among all kinds of tea, and are favored by domestic and foreign consumers. Foreign countries mainly produce and consume black crushed tea, while my country mainly produces and consumes black tea. Withering is the most important process in the production of all kinds of black tea. Withering is carried out under a certain temperature and humidity conditions. Due to the partial water emission, the activity of enzymes in fresh leaves is stimulated, which promotes moderate physical and chemical transformations of the contained substances, causing stems and leaves to wilt, dark green in color, and grass gas to be lost. Processing lays the foundation. Therefore, a good black tea starts with a good withe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23F3/06
Inventor 朱宏凯叶阳董春旺何华锋刘飞黄藩
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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