Extraction method for green tea extract

A technology of green tea extract and extraction method, which is applied in the field of extraction of green tea extract, can solve the problems of unsatisfactory extraction effect, high equipment cost, unfriendly environment and the like, and achieves the advantages of reduced processing steps, high safety and reduced cost. Effect

Inactive Publication Date: 2017-11-28
贵州苗贵客贸易发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic solvent extraction method, serious pollution, unfriendly to the environment
Ultrasonic and microwave extraction methods consume too much energy when use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for extracting green tea extract, comprising the following steps:

[0026] (1) Wet the dry green tea with water, and adjust the moisture content of the green tea to 35% by continuously spraying the dry green tea with water;

[0027] (2) Put the green tea treated in step (1) into a pressurized container, adjust the temperature in the container to 40°C, and pressurize the container. When the pressure in the container reaches 1.6 standard atmospheric pressure, open the container to spray The tea leaves are sprayed out of the pressurized container under the action of air pressure. After the tea leaves are cooled to room temperature, put the tea leaves into the decompression container, adjust the temperature in the container to 20°C, and decompress the container until the pressure in the container is 0.4 When the standard atmospheric pressure is reached, open the nozzle of the container and collect the tea leaves for later use;

[0028] (3) drying the green tea tre...

Embodiment 2

[0038] A method for extracting green tea extract, comprising the following steps:

[0039] (1) Wet the dry green tea with water, and adjust the moisture content of the green tea to 45% by continuously spraying water on the dry green tea;

[0040] (2) Put the green tea treated in step (1) into a pressurized container, adjust the temperature in the container to 80°C, and pressurize the container. When the pressure in the container reaches 2.4 standard atmospheric pressure, open the container to spray The tea leaves are sprayed out of the pressurized container under the action of air pressure. After the tea leaves are cooled to room temperature, put the tea leaves into the decompression container, adjust the temperature in the container to 30°C, and depressurize the container until the pressure in the container is 0.6. When the standard atmospheric pressure is reached, open the nozzle of the container and collect the tea leaves for later use;

[0041] (3) drying the green tea tr...

Embodiment 3

[0051] A method for extracting green tea extract, comprising the following steps:

[0052] (1) Wet the dry green tea with water, and adjust the moisture content of the green tea to 40% by continuously spraying water on the dry green tea;

[0053] (2) Put the green tea treated in step (1) into a pressurized container, adjust the temperature in the container to 60°C, and pressurize the container. When the pressure in the container reaches 2.1 standard atmospheric pressure, open the container to spray The tea leaves are sprayed out of the pressurized container under the action of air pressure. After the tea leaves are cooled to room temperature, put the tea leaves into the decompression container, adjust the temperature in the container to 25°C, and decompress the container until the pressure in the container is 0.5. When the standard atmospheric pressure is reached, open the nozzle of the container and collect the tea leaves for later use;

[0054] (3) drying the green tea trea...

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Abstract

Belonging to the technical field of tea products, the invention discloses an extraction method for a green tea extract. The method includes: spraying dried green tea wet with water; putting the wet green tea into a pressurization container, pressurizing the container, when the pressure in the container reaches a certain degree, opening a container material spray port, then putting the tea into a pressure reduction container, reducing the pressure in the container, and when the pressure in the container reaches a certain degree, opening the container material spray port; then drying the green tea, and crushing the green tea; firstly soaking the obtained green tea powder with distilled water, and then performing extraction with boiling water; and subjecting the obtained extracted liquid to concentration on a rotary evaporator to obtain a green tea extract. The method provided by the invention employs hot water extraction, and compared with other extraction methods, greatly reduces the extraction cost of tea extracts, avoids the pollution of organic solvents, also has no need for adsorption to remove organic solvents, and the processed tea extract has high safety.

Description

technical field [0001] The invention relates to the technical field of tea products, in particular to a method for extracting green tea extract. Background technique [0002] Tea is a well-known health drink. With changes in consumption concepts and lifestyles, tea beverages have become one of the favorite beverage categories for Chinese consumers. Statistics show that the tea consumption market has accounted for about 20% of the entire beverage consumption market. The reason why tea is favored by consumers is mainly because tea not only tastes better, but also has health care effects. According to research and analysis, tea has the following effects: 1. It helps to delay aging. 2. Contribute to the suppression of cardiovascular diseases. 3. Helps prevent and fight cancer. 4. Helps to inhibit and resist virus bacteria. 5. Contribute to beauty and skin care. 6. Helps refresh the mind. 7. Help diuresis and relieve fatigue. 8. Helps lower fat and aid digestion. Nine, h...

Claims

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Application Information

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IPC IPC(8): A23L33/105A23F3/18A61K36/82A61P3/10A61P3/06
CPCA23F3/18A23L33/105A23V2002/00A61K36/82A23V2200/30A23V2250/214
Inventor 龙丹
Owner 贵州苗贵客贸易发展有限公司
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