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Preparation method of green tea powder rich in dietary fibers

A technology of dietary fiber and green tea powder, which is applied in tea treatment before extraction, etc., can solve problems such as difficult temperature control, low water content, tea damage, etc., and achieve the effect of promoting the increase of ice crystals, high water content, and promoting recovery

Active Publication Date: 2020-07-31
GUIZHOU YELANG GUPAN TEA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this, the traditional green tea powder processing has a strong season and time limit; in addition, the raw materials of summer and autumn tea are different in age and tenderness, and the temperature is difficult to control during the curing process, which often results in uneven greening of green tea leaves, and the appearance of yellow and red leaves; The raw materials of summer and autumn tea are old, with high cellulose content and low water content, which can easily cause uneven rolling; while the continuous high temperature in the drying process destroys the ingredients in the tea leaves; Strong, bitter taste, poor suspension, serious sedimentation

Method used

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  • Preparation method of green tea powder rich in dietary fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method rich in dietary fiber green tea powder, comprising the following steps:

[0032] (1) cleaning

[0033] Wash the freshly picked tea leaves in clean water at -15°C, drain the water for later use; the washing time is 10 minutes;

[0034] (2) Enzymolysis

[0035] Spread the tea leaves in a cooling room at 28°C, with a thickness of 1cm, spray the enzymatic solution on the surface of the tea leaves, let it cool for 2 hours, turn the tea leaves, turn the tea leaves underneath to the surface, spray the enzymatic solution again, and let it cool for 3 hours The air pressure of the cooling room is 1 standard atmospheric pressure, and the humidity is 65%; in parts by mass, the preparation method of the enzymolysis solution is as follows: 1 part of acid, 2 parts of cellulase, 3 parts of pectinase, low Mix 1 part of polysaccharide and 110 parts of deionized water evenly, heat to 35°C for later use; the acid is citric acid; the amount of the enzymolysis solution...

Embodiment 2

[0047] A preparation method rich in dietary fiber green tea powder, comprising the following steps:

[0048] (1) cleaning

[0049] Wash the freshly picked tea leaves in clean water at -15°C, drain the water for later use; the washing time is 15 minutes;

[0050] (2) Enzymolysis

[0051] Spread the tea leaves in a cooling room at 32°C, with a thickness of 2cm, spray the enzymatic hydrolysis solution on the surface of the tea leaves, let it cool for 3 hours, turn the tea leaves over, turn the bottom tea leaves to the surface, spray the enzymatic solution again, and let it cool for 5 hours The air pressure of the cooling room is 1.5 standard atmospheric pressure, and the humidity is 75%; in parts by mass, the preparation method of the enzymolysis solution is as follows: 3 parts of acid, 3 parts of cellulase, 5 parts of pectinase, low Mix 2 parts of polysaccharide and 120 parts of deionized water evenly, heat to 38°C for later use; the acid is acetic acid; the amount of the enzy...

Embodiment 3

[0063] A preparation method rich in dietary fiber green tea powder, comprising the following steps:

[0064] (1) cleaning

[0065]Wash the freshly picked tea leaves in clean water at -15°C, drain the water for later use; the cleaning time is 13 minutes;

[0066] (2) Enzymolysis

[0067] Spread the tea leaves in a cooling room at 29°C, with a thickness of 2cm, spray the enzymatic hydrolysis solution on the surface of the tea leaves, let it cool for 2 hours, turn the tea leaves over, turn the bottom tea leaves to the surface, spray the enzymatic hydrolysis solution again, and let it cool for 5 hours The air pressure of the cooling room is 1 standard atmospheric pressure, and the humidity is 75%; in parts by mass, the preparation method of the enzymolysis solution is as follows: 1 part of acid, 3 parts of cellulase, 3 parts of pectinase, low Mix 2 parts of polysaccharide and 110 parts of deionized water evenly, heat to 38°C for later use; the acid is mixed with citric acid and ...

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Abstract

The invention relates to the technical field of green tea processing, in particular to a preparation method of green tea powder rich in dietary fibers. The method comprises the steps of cleaning, enzymolysis, tea moisturizing, freezing, unfreezing, steam explosion and superfine grinding. Formation of an enzymolysis environment on the surface of tea is promoted in an enzyme solution, adhesion of enzymes on the surface of the tea is facilitated, decomposition of crude fibers is promoted, cell walls of cells in green tea are destroyed, and dissolution of nutritional ingredients such as the dietary fibers and mineral substances in the tea is promoted.

Description

technical field [0001] The invention relates to the technical field of green tea processing, in particular to a preparation method of green tea powder rich in dietary fiber. Background technique [0002] With the development of science and technology, the deep processing of tea has been fully realized, and green tea in the form of green tea powder has been more and more used in all aspects of life, making green tea powder have a huge market space. However, there are many disadvantages in traditional green tea powder processing, which cannot meet the demands of the market. First of all, the fresh leaves must be finished on the same day after picking, and then kneaded, dried or directly dried without kneading to make ordinary green tea; then the deep processing of green tea is completed through coarse grinding and ultrafine grinding technology to produce green tea powder or superfine green tea pink. According to this, the traditional green tea powder processing has a strong ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/06
CPCA23F3/06Y02A40/90
Inventor 陈光明陈恩学
Owner GUIZHOU YELANG GUPAN TEA CO LTD
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