White tea extract with high tea polyphenol content

A technology of white tea extract and tea polyphenols, applied in tea extraction, pre-extraction tea treatment, tea, etc., to achieve the effect of improving extraction rate and promoting dissolution

Inactive Publication Date: 2018-10-26
GUIZHOU FANGRUITANG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still relatively few domestic studies on ho

Method used

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  • White tea extract with high tea polyphenol content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A white tea extract with high tea polyphenol content is characterized in that the preparation method of the white tea extract comprises the following steps:

[0027] (1) After the white tea leaves are dried, they are crushed into 20 mesh powders;

[0028] (2) Weigh 8g of white tea leaf powder and place it in a 500ml conical flask, add 350mL of distilled water and extract it in a hot water bath at 85°C, leaching at a constant temperature and shaking for 20 minutes, repeat the leaching 3 times, and decompress while hot after the leaching is completed Filtrate, put the filtrate into a clean container to obtain white tea powder water extract, and wash the residue with hot distilled water;

[0029] (3) Put the white tea leaf powder water extraction residue obtained in step (2) into a 500ml conical flask, add 350mL of 30% ethanol solution at 55°C, leaching with constant temperature and vibration for 35min, and depressurize immediately after the leaching is completed Filter, ...

Embodiment 2

[0037] A white tea extract with high tea polyphenol content is characterized in that the preparation method of the white tea extract comprises the following steps:

[0038] (1) Drying the white tea leaves and pulverizing them into 10 mesh powders;

[0039] (2) Weigh 6g of white tea leaf powder and place it in a 500ml conical flask, add 250mL of distilled water and extract it in a hot water bath at 75°C, leaching at a constant temperature and shaking for 15 minutes, repeating the leaching twice, and decompressing while hot after the leaching is completed Filtrate, put the filtrate into a clean container to obtain white tea powder water extract, and wash the residue with hot distilled water;

[0040] (3) Put the white tea powder water extraction residue obtained in step (2) into a 500ml conical flask, add 250mL of 20% ethanol solution at 45°C, leaching with constant temperature and vibration for 30min, and depressurize immediately after the leaching is completed Filter, and the...

Embodiment 3

[0048] A white tea extract with high tea polyphenol content is characterized in that the preparation method of the white tea extract comprises the following steps:

[0049] (1) Drying the white tea leaves and pulverizing them into 30 mesh powders;

[0050] (2) Weigh 10g of white tea powder and place it in a 500ml conical flask, add 400mL of distilled water and extract it in a hot water bath at 95°C, leaching at a constant temperature for 30 minutes, repeating the leaching 3 times, and decompressing while hot after the leaching is completed Filtrate, put the filtrate into a clean container to obtain white tea powder water extract, and wash the residue with hot distilled water;

[0051] (3) Place the white tea powder water extraction residue obtained in step (2) in a 500ml conical flask, add 400mL of 40% ethanol solution at 65°C, leaching for 40min with constant temperature and vibration, and depressurize immediately after the leaching is completed Filter, and the filtrate is p...

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Abstract

The invention relates to a white tea extract with high tea polyphenol content. A preparation method of the white tea extract comprises the steps of pulverizing, aqueous extraction, ethanol extraction,enzymolysis, ultrafiltration, concentration and drying, and the white tea extract is obtained. By combining aqueous extraction, ethanol extraction and composite enzymolysis technologies, the extraction rate of effective ingredients of white tea can be significantly improved, and the extraction rate can be improved by around 10% compared with single aqueous extraction or ethanol extraction.

Description

technical field [0001] The invention belongs to the field of tea processing, and in particular relates to a white tea extract with high tea polyphenol content. Background technique [0002] Tea, with the development of science and technology, especially since the 1970s, Japan, the United States and my country have carried out a lot of research on the health care function of tea on the human body, especially since the late 1980s, the interdisciplinary and infiltration of multiple disciplines has made the health care of tea Efficacy research has entered a leap forward, achieved many breakthrough results, and followed a large-scale model of in vitro experiment-in vivo experiment-clinical experiment-epidemiological research. [0003] There are many kinds of chemical components in tea, more than 400 kinds have been found, which have obvious health effects on the human body, and can be divided into organic components, including tea polyphenols, vitamins, amino acids, pigments, lipo...

Claims

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Application Information

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IPC IPC(8): A23F3/16A23F3/28A23F3/10
CPCA23F3/10A23F3/16A23F3/28
Inventor 张恩荣杨艳群周慧恒宋燕
Owner GUIZHOU FANGRUITANG BIOTECH
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