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Tea ultramicro-powder preparation method

A technology of superfine tea powder and a production method, which is applied in directions such as tea, tea extraction, and theophylline content reduction, can solve the problems of difficult industrial production, short storage period, low tea polyphenol beneficial substances, etc., and achieves low cost and operation. Simple, energy-saving effect

Inactive Publication Date: 2017-07-11
云南美冠文化发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problems that the existing tea powder preparation method is low in beneficial substances such as tea polyphenols, contains more tannins in tea leaves, has a short storage period, and is difficult to put into industrial production, and provides a production method of ultrafine tea powder. method

Method used

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  • Tea ultramicro-powder preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take 4000g of non-rotten and non-mildew tea leaves, divide them evenly into 4 groups, each group is 1000g, and mark them as A, B, C, D respectively, among them, group A is crushed into more than 600 meshes by the instant crushing method of the existing technology According to the tea powder, the concentration of tea polyphenols, tannin content and storage period are counted.

Embodiment 2

[0037] Based on Example 1, take the material marked as B, grind 1000g of non-rotten and non-mildew tea leaves to coarse tea powder with a particle size of 0.6mm, add 2000ml of purified water to prepare a tea slurry suspension, and extract with a flash extractor , extracted once at a temperature of 20° C. for 5 min, then filtered and collected the filtrate. The collected filtrate is centrifuged to obtain a tea separation liquid, the centrifuge is a disc centrifuge, and the centrifuge speed is 3000r / min. Automatic double-effect concentration, shrink the volume of tea separation liquid through automatic concentrator, precisely control temperature ≦70℃, vacuum degree ≦-0.08mpa, after concentration, the volume ratio of solid to liquid is 0.5:1 paste. Divide the prepared paste into two parts, take half of the paste and pulverize it to obtain tea powder with a particle size of 0.3mm, finely grind, put the prepared dry tea powder into a fine grinder, and use airflow The refiner grind...

Embodiment 3

[0039]Based on Example 1, take the material marked as C, grind 1000g of non-rotten and non-mildew tea leaves to coarse tea powder with a particle size of 0.8mm, add 5000ml of purified water to prepare a suspension of tea slurry, and extract it with a flash extractor , extracted once at a temperature of 50° C. for 20 minutes, then filtered and collected the filtrate. The collected filtrate is centrifuged to obtain a tea separation liquid, the centrifuge is a disc centrifuge, and the centrifuge speed is 6400r / min. Automatic double-effect concentration, the tea separation liquid is shrunk through the automatic concentrator, the temperature is precisely controlled ≦70°C, the vacuum degree ≦-0.08mpa, and the concentrated material-liquid volume ratio is 1:1 paste. Divide the prepared paste into two parts, take half of the paste and pulverize it to obtain tea powder with a particle size of 0.5mm, finely grind it, put the prepared tea dry micropowder into a fine mill, and use airflow ...

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Abstract

The invention relates to the field of tea products and discloses a tea ultramicro-powder preparation method. The method comprises grinding tea without rot and mildew, adding purified water into the ground tea to obtain a tea slurry suspension, extracting the tea slurry suspension through a flash extractor, carrying out filtration, collecting the filtrate, carrying out centrifugal separation on the collected filtrate, condensing the separated tea juice through an automatic concentrator to obtain paste, dividing the prepared paste into two parts, crushing half of the paste, mixing the tea powder and the rest of the paste, drying the mixture to obtain tea ultramicro-powder, putting the tea ultramicro-powder into a refiner, carrying out grinding, dissolving the first order tea ultramicro-powder in an ethanol solvent, adding resin into the solution, washing the mixture through water, and concentrating the eluant to obtain tea ultramicro-powder. The method solves the problem that the tea powder obtained by the existing tea powder preparation method has low content of beneficial substances such as tea polyphenol, contains a large amount of tea tannins, has a short storage period and is difficult to produce industrially.

Description

technical field [0001] The invention relates to the field of tea products, in particular to a method for preparing ultrafine tea powder. Background technique [0002] Tea is a famous drink unique to China. It is sold all over the world. It contains tea polyphenols, tea pigments, theanine, tea polysaccharides and Y-aminobutyric acid and other beneficial substances. It has anti-oxidation (elimination of oxygen free radicals), Anti-inflammatory, reducing the incidence of cardiovascular disease, preventing cancer, lowering blood fat, reducing body fat formation, antibacterial, changing the ecology of intestinal flora, etc. Studies have shown that after drinking a cup of tea for half an hour, the antioxidant capacity (the ability to resist oxygen free radicals) in the blood increases by 41% to 48%, and can last for one and a half hours at a high level. [0003] Most of the existing tea powder preparation methods are, the tea is crushed into tea powder of more than 600 meshes by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/18A23F3/22A23F3/38A23F3/28
Inventor 王铁军
Owner 云南美冠文化发展有限公司