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Method for producing tea-stalk black tea with instantaneous ejecting steam explosion method

A technology of tea stalks and steam, which is applied in the field of producing tea stalks and black tea by the instantaneous ejection steam explosion method, which can solve the problems of immature technology and low utilization rate of active ingredients of tea stalks, and achieve rich and long aroma, rich and refreshing taste, and soup color bright red effect

Active Publication Date: 2018-11-20
ZHENGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for producing tea-stem black tea by the instant ejection steam explosion method, which solves the problems that the existing tea-stem tea technology is immature and the utilization rate of the active ingredients of the tea-stem is not high, etc.

Method used

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Examples

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Effect test

Embodiment 1

[0022] A method for producing tea stalk black tea by instantaneous catapult steam explosion method, comprising the following steps:

[0023] (1) Pretreatment of tea stalks: tea leaves are selected from the Xinyang group species, fresh tea stalks are picked, the length of the tea stalks is 2-8cm, and the tea stalks are naturally withered. 1% steam explosion protective agent, adopt the instant ejection blasting method to carry out steam explosion treatment to the tea stalks, and obtain the tea stalk explosives, for subsequent use. Maintain 60s under the condition of 1.5Mpa, then eject steam explosion instantly and cool down to normal temperature;

[0024] (2) Tea pretreatment: tea leaves are selected from the Xinyang group species, and the fresh leaves of one bud and two leaves, one bud and one leaf or single bud are picked in spring, and naturally withered. Knead until the cell destruction rate is above 85%, and the strip forming rate of the leaves is above 90%, the cords are ...

Embodiment 2

[0029] A method for producing tea stalk black tea by instantaneous catapult steam explosion method, comprising the following steps:

[0030] (1) Pretreatment of tea stalks: tea leaves are selected from Xinyang group species, fresh tea stalks are picked, the length of tea stalks is 2-8cm, and natural withering is carried out. 1% steam explosion protection agent, adopt the instant ejection blasting method to carry out steam explosion treatment to the tea stalks, and get the tea stalk explosives, for future use. The steam explosion treatment is: adopt QBS-80B type steam explosion process test bench, Maintain 70s under the condition of 1.5Mpa, then eject steam explosion instantly and cool to normal temperature;

[0031](2) Tea pretreatment: tea leaves are selected from the Xinyang group species, and the fresh leaves of one bud and two leaves, one bud and one leaf or single bud are picked in spring, and naturally withered. Knead until the cell destruction rate is above 85%, and th...

Embodiment 3

[0036] A method for producing tea stalk black tea by instantaneous catapult steam explosion method, comprising the following steps:

[0037] (1) Pretreatment of tea stalks: tea leaves are selected from the Xinyang group species, fresh tea stalks are picked, the length of the tea stalks is 2-8cm, and the tea stalks are naturally withered. 1% steam explosion protective agent, adopt the instant ejection blasting method to carry out steam explosion treatment to the tea stalks, and obtain the tea stalk explosives, for subsequent use. Maintain 80s under the condition of 2.0Mpa, then eject steam explosion instantly and cool to room temperature;

[0038] (2) Tea pretreatment: tea leaves are selected from the Xinyang group species, and the fresh leaves of one bud and two leaves, one bud and one leaf or single bud are picked in spring, and naturally withered. Knead until the cell destruction rate is above 85%, and the strip forming rate of the leaves is above 90%, the cords are tightly...

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Abstract

The invention relates to a method for producing tea-stalk black tea with an instantaneous ejecting steam explosion method. The method comprises steps as follows: (1), tea stalk pretreatment: fresh teastalks are picked and withered until water content is 50%-60%, 1% of a steam explosion protective agent is sprayed, the tea stalks are subjected to steam explosion treatment with the instantaneous ejecting steam explosion method, and tea stalk exploded matter is obtained for standby application; (2), tea pretreatment: withering and rolling are performed, and tea rolled matter is obtained for standby application; (3), fermentation: the tea rolled matter and the tea stalk exploded matter are mixed uniformly in a volume ratio being 10-15:85-90 for fermentation; (4), drying: the tea-stalk black tea is obtained, wherein the steam explosion protective agent is prepared from 3%-5% by weight of VC, 2%-3% by weight of Arabic gum, 1%-2% by weight of trehalose, 1%-3% by weight of glucose oxidase, 3%-5% by weight of sucrose ester, 0.1% by weight of citric acid, 3%-5% by weight of soluble starch and the balance of water. The tea-stalk black tea has brilliant red and bright soup color, strong and long-lasting aroma and strong and fresh taste.

Description

technical field [0001] The invention relates to a method for producing black tea with tea stalks by an instantaneous catapult steam explosion method, belonging to the field of tea processing. Background technique [0002] Tea is one of the important economic crops in my country, and its output ranks first in the world. The development of tea has played a huge role in the promotion of my country's economy. However, most of the by-products produced in the tea-making process, such as tea dust and tea stems, are thrown away as waste. During the reprocessing of raw tea, tea stalks are usually sorted out as inclusions, and the tea stalks picked out each year account for about 20% of the gross weight of tea leaves. Tea stalks contain a considerable amount of aroma substances, and the aroma of tea leaves gradually decreases from the first leaf to the third leaf, while the aroma of tea stalks is the highest. The aroma substances of tea are mainly in the main veins of tea stalks an...

Claims

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Application Information

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IPC IPC(8): A23F3/08
CPCA23F3/08
Inventor 马鹏刘会丽王飞天汤丽萍王琦梁晨靳英哲
Owner ZHENGZHOU INST OF TECH
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