Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Processing method for low-caffeine and high-GABA (Gamma Aminobutyric Acid) black tea compounded with folium mori

A γ-aminobutyric acid and low-caffeine technology, which is applied in tea treatment before extraction, can solve problems such as increased caffeine content, slow fermentation speed, and limited production time of low-caffeine black tea, so as to achieve mellow taste and soup color Bright red and yellow effect

Inactive Publication Date: 2014-01-01
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
View PDF3 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in actual production, if the amount of fresh leaves and tea fruit is added less, the fermentation speed will be slower and the effect will be poor; if the amount of added is larger, the caffeine content in the finished tea will increase again
Moreover, the fermented tea fruit can only be picked before May every year, which severely limits the production time of low caffeine black tea

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A processing method of low caffeine, high GABA mulberry leaf compound black tea, comprising the steps of:

[0017] 1) Raw materials: Pick fresh tea leaves according to the requirements of ordinary black tea, spread them out to dry, and wither. The details are as follows: pick fresh leaves according to the standard of one bud and two leaves, spread the fresh leaves thinly in the room to wither, the thickness of the spread leaves is about 1cm, and the withering temperature is 25-30°C, the withering time is about 15 hours, until the green air fades, the tea fragrance is released, the leaf quality is slightly soft, and slowly disperses after being held in a ball, with a moisture content of about 57%.

[0018] 2) Decaffeination: Put the withered tea leaves into 100°C water and soak for 2 minutes, then rinse with cold water immediately after removal; after centrifugal dehydration, spread the tea leaves on the withering tank for heating and dehumidification, the temperature of ...

Embodiment 2

[0023] Embodiment 2: a kind of processing method of low caffeine, high γ-aminobutyric acid mulberry leaf compound black tea, comprises the following steps:

[0024] 1) Raw materials: Pick fresh leaves according to the standard of one bud and two leaves, spread the fresh leaves thinly indoors and wither, the thickness of the spread leaves should not overlap each other, the withering temperature is 25-30°C, and the withering time is about 6 hours. When the green color fades, the tea aroma is distributed, and the leaf quality is slightly soft. After holding it into a ball, it slowly disperses, and the moisture content is about 60%.

[0025] 2) Decaffeination: soak the withered tea leaves in hot water at 95°C for 3 minutes, then rinse them with cold water immediately after taking them out; 50°C to reduce the water content to 62%;

[0026] 3) Mulberry leaves: Pick new and slightly mature leaves and remove the stalks; spread and wither indoors, the thickness of the spread is about ...

Embodiment 3

[0030] Embodiment 3: a kind of processing method of low caffeine, high γ-aminobutyric acid mulberry leaf compound black tea, comprises the following steps:

[0031] 1) Raw materials: Pick fresh leaves according to the standard of one bud and three leaves, and spread the fresh leaves indoors with a thin layer of 2-3cm in thickness, withering temperature of 25-30°C, withering time of 20 hours, and stirring every 2 hours Once, until the green gas fades, the tea aroma is released, the leaf quality is slightly soft, and slowly spread out after being held in a ball, with a moisture content of about 65%.

[0032] 2) Decaffeination: Put the withered tea leaves into hot water at 100°C for 3 minutes, take them out and rinse them with cold water immediately; 45℃, reduce the water content to 65%;

[0033] 3) Mulberry leaves: spread and wither indoors, the thickness of the spread is about 1cm, turn it every 1 hour or so, the withering temperature is 30°C, and the withering time is about 4...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a processing method for low-caffeine and high-GABA (Gamma Aminobutyric Acid) black tea compounded with folium mori. The processing method comprises the following steps: dipping fresh tea leaves by hot water to remove caffeine in the tea leaves, spreading out and cooling the tea leaves, adding a defined amount of folium mori subjected to anaerobic and withering processing into the tea leaves, rolling the mixture, and performing fermentation by using polyphenol oxidase and peroxidase which are contained in the folium mori. For the prepared black tea, the content of the caffeine is smaller than or equal to 0.5%, and the content of the GABA is larger than or equal to 1.5 mg / g; during drinking, the black tea has fruity fragrance and tastes sweet, the liquor color is reddish yellow and bright, and the tea tastes mellow, not only has mellow fragrance of tea, but also has unique sweetness of the folium mori; the processing method is free from limitation of the picking time of the tea leaves.

Description

technical field [0001] The invention belongs to the field of tea processing, and in particular relates to a processing method of low-caffeine and high-γ-aminobutyric acid mulberry leaf compound black tea. Background technique [0002] The content of caffeine in tea is about 3-5%. It is a characteristic flavor component and an important quality component of tea, and has a certain health care effect. However, the elderly, pregnant women, children, patients with cardiac insufficiency and neurasthenia often have the following adverse effects after taking a large amount of caffeine. Therefore, low caffeine (content ≤ 1%) is liked by certain groups of people and is popular in the market. At present, tea decaffeination methods mainly include chemical solvent method, supercritical CO 2 Extraction method, hot water immersion method, etc. Among them, the hot water soaking method can only be used to produce green tea but not black tea because it destroys the enzyme activity; the che...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/14
Inventor 李园莉马圣洲杨士虎
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com