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

Instant decaffeinated green tea powder and preparation method thereof

A technology for decaffeinated and instant green tea, applied in the direction of tea extraction and the reduction of alkali content in tea, can solve the problems of loss of nutrients, poor cold solubility, oxidation of tea polyphenols, etc., and achieves strong applicability, low cost and good taste. Effect

Inactive Publication Date: 2015-07-08
MEIDINGBAO PLANT SCI & TECH CHINA
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional method has poor cold solubility and causes the oxidation of tea polyphenols and other nutrients in tea, resulting in the loss of nutrients

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

[0026] (1) Mix the tea leaves with water so that the water content of the tea leaves accounts for 30% of the total weight, and stir evenly.

[0027] (2) Put the substance prepared in step (1) in an extraction kettle, pass through supercritical carbon dioxide, keep it at 50°C, 350bar, and extract it for about 6 hours, and then perform decaffeination;

[0028] (3) The carbon dioxide extracted in step (2) is washed and purified with water and used for circulation to perform decaffeination treatment on the tea leaves prepared in step (2).

[0029] (4) Add water to the tea leaves treated in step (2) for soaking, add 1 ton of water per 100kg of tea leaves and mix, and adjust the ph value of the mixture to 5.

[0030] (5) For the mixed solution in step (4), add 1 kg of mixed enzyme per 1000 kg mixed solution, mixed enzyme is 5% papain, 30% pectinase, 60% cellulase and 5% tanninase (quality percentage).

[0031] (6) Insulate the mixture in step (5), control the temperature range at ...

Embodiment 2

[0036] (1) Blend tea leaves and stevia (95wt% tea and 5wt% stevia) with water so that the water content of the raw materials accounts for about 40% of the total weight, and stir evenly;

[0037] (2) Put the substance prepared in step (1) in the extraction kettle, pass it into supercritical carbon dioxide, keep it at 40°C, 300bar, and extract it for about 10 hours, and then perform decaffeination treatment;

[0038] (3) The carbon dioxide extracted in step (2) is purified by washing with water and used for recycling to perform decaffeination on the raw materials prepared in step (2) (95wt% tea leaves and 5wt% stevia);

[0039] (4) Add water to the raw materials treated in step (2) for soaking, add 2 tons of water per 100kg of raw materials and mix, and adjust the pH value of the mixed solution to about 7;

[0040] (5) For the mixed solution in step (4), add 2kg of mixed enzyme per 1000kg mixed solution, mixed enzyme includes 20% protease, 15% pectinase, 57% cellulase and 8% tan...

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

PropertyMeasurementUnit
Apertureaaaaaaaaaa
Login to View More

Abstract

The invention relates to instant decaffeinated green tea powder and a preparation method thereof. Supercritical carbon dioxide is adopted to extract a raw material, and then enzymolysis, membrane separation and concentration and drying are performed to obtain the instant decaffeinated green tea powder. The preparation method is simple and quick, high in extracting efficiency, short in extraction time, simple in technological process, good in applicability and low in cost. The prepared instant decaffeinated green tea powder has health-care effect, is good in taste, is easily soluble in cold water and hot water and is free of precipitates.

Description

technical field [0001] The invention relates to the field of beverages, in particular to an instant tea powder and a preparation method thereof, in particular to an instant decaffeinated instant green tea powder and a preparation method thereof. Background technique [0002] Tea has multiple functions such as anti-oxidation, anti-cancer, anti-radiation, lowering cholesterol, preventing arteriosclerosis, etc. It is one of the most popular beverages among consumers. The caffeine in tea can excite the brain and stimulate the heart. Diabetics, hypertensive patients, the elderly, pregnant women, children, etc. should not drink tea with high caffeine. After drinking tea with high caffeine for a long time, the cause physical discomfort or other side effects. Therefore, a kind of tea product with low caffeine content is demanded in the market. Supercritical carbon dioxide extraction is considered the ideal method for decaffeinating tea leaves. Chinese patent CN85102970 discloses ...

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
IPC IPC(8): A23F3/36A23F3/30
Inventor 王宪达陈树华张阳光徐中明程光喜楼欢楼亦姝王世平彭涛
Owner MEIDINGBAO PLANT SCI & TECH CHINA
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com