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Method for improving the alcoholization rate of Fu-zhuan brick tea

A technology of tea alcohol and Fuzhuan brick, which is applied in the processing field of Fuzhuan brick tea, can solve the problems that the alcoholized Fuzhuan brick tea has not been reported or patented, and achieve the effect of increasing the value of commodities

Active Publication Date: 2015-12-09
湖南省核农学与航天育种研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although there have been some research reports and patent applications on the alcoholization of black tea, but for Fuzhuan tea, which is a special kind of tea, especially the report or patent of using the combination of irradiation technology and enzymatic hydrolysis technology to alcoholize Fuzhuan tea haven't seen yet

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The method for improving the alcoholization degree of Fuzhuan tea of ​​the present invention includes the following steps:

[0034] (1) Irradiation of raw materials

[0035] In order to ensure the stability of quality, the raw materials for the production of Fuzhuan tea in this embodiment are blended spring and summer tea black hair tea. The raw black hair tea is put into a closed container, and the mixed gas of nitrogen and oxygen is filled after vacuuming, and the oxygen ratio reaches 50%. The aerated raw black hair tea is irradiated with gamma rays at room temperature, and the irradiation dose is 15 kGy.

[0036] (2) Add water

[0037] Sterilized water is added to the tea raw materials obtained in step (1) to control the moisture content of the tea leaves to 20% after adding water.

[0038] (3) Steam

[0039] The tea raw materials obtained in step (2) are put into a steam engine and heated for 6 minutes; through steaming, the humidity of the tea raw materials is further increa...

Embodiment 2

[0058] The method for improving the alcoholization degree of Fuzhuan tea of ​​the present invention includes the following steps:

[0059] (1) Irradiation of raw materials

[0060] In order to ensure the stability of quality, the raw materials for the production of Fuzhuan tea in this embodiment are blended spring and summer tea black hair tea. The raw black hair tea is put into a closed container, evacuated and filled with a mixed gas of nitrogen and oxygen, where the oxygen ratio reaches 70%, the aerated raw black hair tea is irradiated with gamma rays at room temperature, and the irradiation dose is 12 kGy.

[0061] (2) Add water

[0062] Sterilized water is added to the tea raw materials obtained in step (1) to control the moisture content of the tea leaves to 18% after adding water.

[0063] (3) Steam

[0064] The tea raw materials obtained in step (2) are put into a steam engine and heated for 6 minutes; through steaming, the humidity of the tea raw materials is further increased ...

Embodiment 3

[0080] The method for improving the alcoholization degree of Fuzhuan tea of ​​the present invention includes the following steps:

[0081] (1) Irradiation of raw materials

[0082] In order to ensure the stability of quality, the raw materials for the production of Fuzhuan tea in this embodiment are blended spring and summer tea black hair tea. The raw black hair tea is put into a closed container, and the mixed gas of nitrogen and oxygen is filled after vacuuming. The oxygen ratio reaches 80%. The aerated raw black hair tea is irradiated with gamma rays at room temperature with an irradiation dose of 10 kGy.

[0083] (2) Add water

[0084] Sterilized water is added to the tea raw materials obtained in step (1) to control the moisture content of the tea leaves to 20% after adding water.

[0085] (3) Steam

[0086] The tea raw material obtained in step (2) is put into a steam engine and heated for 5 minutes; the humidity of the tea raw material is further increased by steaming, and the t...

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PUM

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Abstract

The present invention relates to a method for improving the alcoholization rate of Fu-zhuan brick tea. The method comprises the following steps of pretreating raw dark green tea raw materials with irradiation; adding sterilized water into the pre-treated tea raw materials and controlling the water content of the tea leaves after adding water to be 15%-20%; subjecting the obtained tea raw materials to steaming and accumulating to gather heat until the temperature of the heap is 70 DEG C or higher; scattering the obtained tea leaf heap to dissipate heat until the temperature of the tea leaves drops to 50 DEG C or below; using cellulase to perform enzymolysis on the tea leaf intermediate materials; carrying out steaming again; conducting deacidification to control the pH value at 5.5 to 7.0; building tea bricks of the obtained tea leaf intermediate materials; and blooming and drying the obtained tea bricks to obtain the finished Fu-zhuan brick tea product with a significantly improved alcoholization rate. The method can significantly improve the quality and the efficiency of process of the Fu-zhuan tea bricks.

Description

Technical field [0001] The invention relates to the field of tea processing, in particular to a processing method of Fuzhuan tea. Background technique [0002] Fuzhuan tea is a specialty tea in Hunan, with an annual output of about 50,000 tons. In recent years, it has received extensive attention due to its excellent lipid-lowering, blood-sugar-lowering and blood-pressure-lowering effects. The raw material for the production of Fuzhuan tea is poor-quality Heimao tea. The key to its production is to control the appropriate temperature and humidity, and to ferment it with Santocystis cristatum, and to utilize the enzymatic effect of microorganisms and the heat generated by respiratory metabolism through fermentation. A series of biochemical reactions such as oxidation, decomposition, and polymerization of tea leaves in a high-humidity environment make the originally bitter black hair tea become reddish brown in color, mellow in taste, and mellow in aroma. [0003] It is generally b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/08
Inventor 刘仲华王克勤陈亮陈静萍武小芬
Owner 湖南省核农学与航天育种研究所