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A method for producing tea stem black tea by instantaneous ejection steam explosion method

A technology of tea stalk black tea and tea stalk, which is applied in the field of instant ejection steam explosion method for producing stalk black tea, can solve the problems of immature process and low utilization rate of effective components of tea stalk, and achieves rich and long-lasting aroma, strong and fresh taste , the effect of preventing volatilization

Active Publication Date: 2021-11-09
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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  • A method for producing tea stem black tea by instantaneous ejection steam explosion method
  • A method for producing tea stem black tea by instantaneous ejection steam explosion method

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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 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 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 the strip forming rate of the leaves is above 90%, the cords are tightl...

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 present invention relates to a method for producing tea stalk black tea by instantaneous catapult steam explosion method, comprising the following steps: (1) tea stalk pretreatment: picking fresh tea stalks, withering until the water content is 50-60%, and then spraying 1% steam Explosion protection agent, using instant ejection blasting method to steam blast the tea stalks to obtain tea stalk explosives for later use; (2) tea pretreatment: withering and rolling, and obtain tea leaves for later use; (3) fermentation: according to the volume ratio The ratio of 10-15:85-90, mix the tea leaves and tea stalk explosives evenly, and ferment; (4) dry to obtain tea stalk black tea; the steam explosion protection agent, in terms of weight percentage, includes 3-5% VC, 2-3% gum arabic, 1-2% trehalose, 1-3% glucose oxidase, 3-5% sucrose ester, 0.1% citric acid, 3-5% soluble starch, and the rest water. The tea stalk black tea soup of the present invention is red and bright in color, rich and long in aroma, and rich in 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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Patent Type & Authority Patents(China)
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