Pu-erh tea extract, preparation method and application

A technology for Pu-erh tea and extract, applied in the field of Pu-erh tea extract, can solve the problems of low active ingredients and yield, large equipment demand, large alcohol consumption, etc., and achieves low cost, stable quality, and stable and controllable quality. Effect

Active Publication Date: 2011-02-02
TIANJIN TASLY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] It can be seen that the preparation process is medium and low temperature extraction, then the extract is filtered, the filtrate is concentrated under reduced pressure, spray dried or dried under reduced pressure, and the medium a...

Method used

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  • Pu-erh tea extract, preparation method and application
  • Pu-erh tea extract, preparation method and application
  • Pu-erh tea extract, preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0121] Pu’er tea, add water to vigorously boil and decoct to extract 3 times, decoct for 3 hours, add water to a total multiple of 26 times, filter the extract with 80 mesh, and concentrate the filtrate under reduced pressure to tea leaves with a temperature of ≤70°C (weight):concentrate (volume)= 1:1, centrifuge the concentrated liquid in a three-legged centrifuge, add 8 times the amount of ethanol to the centrifuged liquid, stir and extract twice, the extraction time is 1 hour, filter, and dry the filter cake with hot air. The yield of the extract is 20%. After content determination, the Pu’er tea extract contains 29.20% tea polyphenols, 22.70% theabrownin, 0.17% caffeine, 39.50% tea polysaccharide, 0.17% theaflavin, protein pectin Other impurities 8.26%.

Embodiment 2

[0123] Pu’er tea, add water to vigorously boil and decoct to extract 4 times, decoct for 2 hours, add water to a total multiple of 5 times, filter the extract with 40 mesh, and concentrate the filtrate under reduced pressure at a temperature of ≤70°C to tea leaves (weight):concentrate (volume)= 1:3, centrifuge the concentrated liquid in a three-legged centrifuge, add 3 times the amount of methanol to the centrifuged liquid, stir and extract twice, the extraction time is 0.5h, filter, and vacuum-dry the filter cake. Wherein the extract yield is 18%. After content determination, the Pu'er tea extract contains 54.59% tea polyphenols, 12.05% theabrownin, 0.3% caffeine, 24.48% tea polysaccharides, 0.05% theaflavins, and 8.53% impurities such as protein pectin.

Embodiment 3

[0125] Pu’er tea, add water to vigorously boil and decoct to extract 5 times, the decoction time is 0.5 hours, the total multiple of water is 18 times, the extract is filtered at 80 mesh, the filtrate temperature is ≤70°C and concentrated under reduced pressure to tea leaves (weight): concentrate (volume) = 1:0.5, centrifuge the concentrated liquid in a three-legged centrifuge, add 10 times the amount of propanol to the centrifuged liquid, stir and extract once, the extraction time is 0.5h, filter, and the filter cake is vacuum belt-dried. Wherein the extract yield is 17%. After content determination, the Pu'er tea extract contains 35.46% of tea polyphenols, 16.51% of theabrownin, 0.04% of caffeine, 46.05% of tea polysaccharides and 0.05% of theaflavins. , protein and pectin impurities etc. 1.89%.

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Abstract

The invention relates to a Pu-erh tea extract, a preparation method and application. The Pu-erh tea extract has high active ingredient content and low caffeine content, and can reduce blood sugar obviously and lower safety risks. Through the preparation method, active ingredients can be converted and dissolved out effectively. The process has the advantages of meeting the requirements of environmental protection along with simpleness, strong operability, low cost and industrialization; and the quality of the Pu-erh tea extracts is table and controllable.

Description

technical field [0001] The invention relates to a tea product, in particular to a Pu'er tea extract capable of lowering blood sugar. Background technique [0002] In recent years, due to changes in people's production, living and environmental conditions, on the one hand, overall resources have been destroyed, air and water quality have been polluted to varying degrees, pesticides remain in some vegetables and fruits, and feed hormones in some meats have not been completely decomposed. , which greatly increases the working pressure of the pancreas, the detoxification organ of the human body. Often, this leads to insufficient insulin production in the body; Physical labor reduces physical exertion and increases the accumulated calories in the body, leading to an increase in insulin consumption. As a result of the combined effects of the two aspects, the incidence of diabetes, fatty liver and other diseases has increased significantly. At present, diabetes has become the thir...

Claims

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Application Information

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IPC IPC(8): A23F3/18A61P3/10A23L1/29A61K36/82A23L33/00
Inventor 闫希军刘顺航范开黄松马继忠
Owner TIANJIN TASLY GROUP
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