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Tea polyphenol extracting method from gomphrena globosa

A technology of amaranth and tea polyphenols, applied in the field of tea polyphenols extraction, can solve the problems of low yield, difficulty in large-scale production, high cost, etc., and achieve the effect of improving the extraction rate

Inactive Publication Date: 2016-05-04
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem mainly solved by the present invention: in the current process of extracting tea polyphenols by traditional methods, although there are certain advantages, there are often high costs, low yields and a large amount of waste water, which makes it difficult to implement large-scale production. The current situation provides a kind of a thousand day red as a raw material, through drying and crushing to obtain a powder, then adding ethyl acetate to the obtained powder to extract a thousand day red powder extract, and then decolorizing the extract by resin adsorption and activated carbon , and finally through static separation, drying and spraying, so as to obtain the method of extracting tea polyphenols from amaranth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] First, pick 15 plants with dense branches and leaves and bright flowers, cut off the branches and keep the flowers, rinse once in clean water to remove the residual pollution on the surface of the flowers, then put them in a pineapple sieve, and place them in the sun for 5 hours , where it is turned in the sun once every 1 hour until the water content in the flowers is 1%; then after the drying is completed, the sun-dried Amaranth flowers are placed in a pulverizer for crushing, crushed for 12 minutes, and passed through a 120-mesh sieve to obtain a thousand-day flower Safflower powder; then put the above-mentioned safflower powder into a beaker, then add 2 times the mass concentration of safflower powder to the beaker, and then mix it evenly, and place it in a water bath at 80°C After leaching for 20 minutes, move it into a high-speed centrifuge, centrifuge at a speed of 1200r / min for 15 minutes, remove the filter residue, and obtain the filtrate; then put the above-men...

example 2

[0027]First, pick 18 plants with dense branches and leaves and bright flowers, cut off the branches and leave the flowers, rinse them twice in clean water to remove the residual pollution on the surface of the flowers, then put them in a pineapple sieve, and place them in the sun for 5.5 hours. h, wherein every 2 hours is turned in the sun once, until the water content in the flower is 1.5%; then, after the turning is completed, the sun-dried Amaranth flowers are placed in a pulverizer for crushing, crushed for 16 minutes, and passed through a 125-mesh sieve to obtain thousands of flowers. Heliotrope powder; then put the safflower powder obtained above into a beaker, then add 2.5 times the mass concentration of safflower powder to the beaker, and then mix it evenly and place it at 83°C After leaching in a water bath for 23 minutes, move it into a high-speed centrifuge, centrifuge at a speed of 1300r / min for 17 minutes, remove the filter residue, and obtain a filtrate; then put ...

example 3

[0030] First, pick 20 plants with dense branches and leaves and bright flowers, cut off the branches and keep the flowers, rinse them in clean water for 3 times to remove the residual pollution on the surface of the flowers, then put them in a pineapple sieve, and place them in the sun for 6 hours , which is turned in the sun once every 3 hours until the water content in the flowers is 2%; then after the drying is completed, the sun-dried Amaranth flowers are placed in a pulverizer for crushing, crushed for 18 minutes, and passed through a 130-mesh sieve to obtain a thousand-day flower. Safflower powder; then put the above-mentioned safflower powder into a beaker, then add 3 times the mass concentration of safflower powder to the beaker, and then mix it evenly and place it in a water bath at 85°C After leaching for 25 minutes, move it into a high-speed centrifuge, centrifuge at a speed of 1500r / min for 18 minutes, remove the filter residue, and obtain the filtrate; then put the...

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Abstract

The present invention discloses a tea polyphenol extracting method from gomphrena globosa and belongs to the technical field of tea polyphenol extraction. The gomphrena globosa is used as a raw material, stir-dried, and crushed into a powder, then ethyl acetate is added into the obtained powder to extract a gomphrena globosa powder extract, after that the extract is absorbed by resin and de-colored by activated, and thereby the tea polyphenol extracting method from gomphrena globosa is obtained by a final static separation and spray drying. Examples demonstrate that the tea polyphenol extracting method is simple in operation, the raw materials are easily accessible, the production cost is lowered, the extraction rate of the tea polyphenols is also improved to an extraction rate of 85%, and a mass production can be achieved.

Description

technical field [0001] The invention discloses a method for extracting tea polyphenols from amaranth, belonging to the technical field of tea polyphenol extraction. Background technique [0002] Tea polyphenols are the general term for catechins, flavonoids, phenolic acids and anthocyanins in tea, accounting for about 15% to 25% of the dry weight of tea. The most important components in tea polyphenols are various catechins of flavanols. There are multiple active hydroxyl groups (OH) in the tea polyphenol molecule, which can terminate the chain reaction of free radicals in the human body and remove superoxide ions, similar to the effect of SOD. The elimination rate of tea polyphenols on superoxide anion and hydrogen peroxide free radicals It is more than 98%, showing a significant dose-effect relationship, and its effect is better than that of vitamin E and C; tea polyphenols have a protective effect on cell membranes and cell walls, and the elimination effect on lipid pero...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154
CPCA23B7/154A23V2002/00A23V2200/10A23V2250/2132A23V2250/214A23V2300/14
Inventor 董燕敏
Owner CHANGZHOU UNIV
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