CN1036309C - Tea pigment and preparation thereof - Google Patents
Tea pigment and preparation thereof Download PDFInfo
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- CN1036309C CN1036309C CN93110414A CN93110414A CN1036309C CN 1036309 C CN1036309 C CN 1036309C CN 93110414 A CN93110414 A CN 93110414A CN 93110414 A CN93110414 A CN 93110414A CN 1036309 C CN1036309 C CN 1036309C
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Abstract
The present invention relates to a tea extract and an extraction method of water-soluble tea components in tea, more specifically to an edible tea pigment comprising theabrownin, theaflavin and thearubigin extracted from tea and constantly proportioned and a production method thereof. The weight content of the theabrownin in the tea pigment obtained by the extraction method is from 15 to 18%, the weight content of the theaflavin is from 1 to 4%, and the weight content of the thearubigin is from 2 to 5%. The tea pigment comprises the production processes that the tea is decocted for obtaining juice; the juice is alkalized, concentrated and acidified; ethanol is added for reflux; then, ethanol reflux liquid is alkalized for obtaining tea pigment crystals; and the tea pigment crystals are sprayed and dried for obtaining the tea pigment. The tea pigment obtained by the extraction method has the advantages of beautiful, durable and stable color tone regulated by following the pH value of materials, strong coloring power, all naturalness and innocuity. The tea pigment can be widely used for food industries of color wine, beverages, cakes, candies, etc.
Description
The present invention relates to the extracting method of water-soluble tea component in a kind of extract of tea and the tealeaves, specifically, is a kind of tea pigment and production method thereof.
In the prior art, do not detect the water soluble tea pigment and the production method thereof that constitute by theabrownin, thearubigins, theoflavin three from tealeaves, extracted, on November 5th, 1986 Decree of Patent Office of China a kind of " preparation method of black tea colorant ", application number: 85103794, wherein black tea colorant is through chemical oxidation by green tea or fresh tea leaf in its, and directly make, though in the tealeaves utilization, be improved, but do not relate to yet use from tealeaves extract by theabrownin, water soluble tea pigment and production method thereof that thearubigins, theoflavin three constitute.
The object of the present invention is to provide a kind of forming of from tealeaves, extracting, and the three there are the water-soluble edible tea pigment and the production method thereof of constant proportion of composing by theabrownin, thearubigins, theoflavin three.
For achieving the above object, tea pigment of the present invention is the brown amorphous powder, it is a kind of water colo(u)r that includes effective constituent theabrownin, thearubigins, theoflavin, it is characterized in that: the weight content of theabrownin is 15-18%, the weight content of theoflavin is 1.5-3%, the weight content of thearubigins is 2-5%, other surplus.The pH value of this product 0.1% (weight) pure water solution is 8-9, and this product 0.1% (weight) pure water solution is at 280nm visible light maximum absorption place, the absorption value E in the thick cuvette of 10mm
1cm 280nm〉=3.0.Soluble in water and the ethanol of this grade, its water or alcoholic solution are the brown settled solution, no suspendible or muddiness.Add FeCl in this product aqueous solution
3Test solution generates green gloomy shallow lake; Dripping the glutin test solution has colourless flocks to produce; The weight loss on drying amount is less than 5%, residue on ignition by vitriol less than 35%.
The production method of above-mentioned tea pigment is as follows: (a) tealeaves is by 1: 15-30 doubly (weight) adds water after juice is got in decoction, fried liquid be used in the aqueous solution be alkalescence compound alkalize, regulate PH8-10, at 80-90 ℃ of 1/2-6 that heats concentrated this alkaline solution to the original volume amount down, get concentrated solution then; (b) concentrated solution transfers to PH3-6 with acid, and acidizing fluid adds ethanol 1-10 volume doubly to be measured, and backflow 0.5-2 hour, gets alcohol reflux liquid; (c) alcohol reflux liquid is used in the compound that is alkalescence in the aqueous solution and is adjusted to PH7-10, and post precipitation filters, and gets the tea pigment crystallization, and the tea pigment crystallization is spray-dried, promptly gets this tea pigment.
The above-mentioned compound that is alkalescence in the aqueous solution is sodium hydroxide, yellow soda ash, sodium bicarbonate.The decocting time that a step tealeaves adds behind the water is best for 0.75-1 hour, is beneficial to the stripping and the maintenance of tea pigment; The acid of being adopted is hydrochloric acid, oxalic acid, acetic acid.
The present invention compared with prior art, have following advantage: the tea pigment composition is complete, the tone grace, adjustable with the pH value tone of material, lasting stability, strong coloring force, All Pure Nature is nontoxic, and the method applied in the present invention, raw material can adopt various height, low and middle-grade tealeaves, wide material sources, cheap, the tea pigment extraction yield can reach more than 30%.The tea pigment of gained of the present invention can be widely used in food service industrys such as color wine, beverage, cake, candy, has very big economic benefit and social benefit.
Accompanying drawing is a visible ultra-violet absorption spectrum of the tea pigment of embodiment 1 gained.
The invention will be further described below in conjunction with embodiment:
Implement 1, green broken tea 40Kg mixes three decoctions of moisture that weigh 20 times of amounts in the moistening rearmounted jacket steam pot with tealeaves thoroughly with the water purification of 1: 1 (weight ratio) in two-way stirrer, and the back of at every turn boiling kept 20 minutes.Merge three fried liquid and advance Plate Filtration, filtrate adds sodium hydroxide solution to PH9 under continuous stirring in transferring the alkali still, be concentrated into 1/4 of original volume amount 85 ℃ of thin film evaporation at once, alkalization tea juice after concentrating puts that the volume by 1: 2 adds ethanol in the reactor, reflux half an hour to PH3-6 with hcl acidifying, emit phegma after cooling and put alkalization and transfer to PH9 with sodium hydroxide in the still, can get the tea pigment crystallization, the spraying drying of sizing mixing after this crystallization is filtered promptly gets tea pigment 4Kg.This tea pigment is a brown powder, and its visible absorbance UV spectrum is seen accompanying drawing, and the theabrownin weight content is 16%, and the theoflavin weight content is 15%, and the thearubigins weight content is 4%.
Embodiment 2, black tea 30Kg, the water that adds heavy 15 times of amounts is put in the jacket steam pot and is decocted, kept 45 minutes after boiling, fried liquid alkalizes to PH8 in transferring the alkali still with sodium carbonate solution, heat down at 88 ℃ then and concentrate this alkaline solution to 1/2 of original volume amount, get concentrated solution, after alkalization tea juice after concentrating transfers to PH5 with acetic acid, put in the reactor and got alcohol reflux liquid in 1.5 hours by refluxing behind 1: 5 the volume adding ethanol, emit phegma after the cooling and put alkalization and transfer to PH8 with sodium carbonate solution in the still, can get the tea pigment crystallization, the spraying drying of sizing mixing after crystallization is filtered promptly gets tea pigment 3.2Kg.This tea pigment is a brown powder, and the theabrownin weight content is 18%, and the theoflavin weight content is 2.5%, and the thearubigins weight content is 2%.
Embodiment 3, oolong jasmine tea 40Kg, the water that adds heavy 30 times of amounts is put in the jacket steam pot and is decocted, kept 1.5 hours after boiling, fried liquid alkalizes to PH10 in transferring the alkali still with sodium hydrogen carbonate solution, heat down at 80 ℃ then and concentrate this alkaline solution to 1/6 of stoste volume, get concentrated solution, concentrated solution transfers in the rearmounted reactor of PH6 by refluxing 2 hours behind 1: 10 the volume adding ethanol with oxalic acid, get alcohol reflux liquid, emit phegma after the cooling and put alkalization and transfer to PH10 with sodium hydrogen carbonate solution in the still, can get the tea pigment crystallization, the spraying drying of sizing mixing after this crystallization is filtered promptly gets tea pigment 3.9Kg.This tea pigment is a brown powder, and the theabrownin weight content is 15%, and the theoflavin weight content is 3%, and the thearubigins weight content is 5%.
Claims (5)
1, a kind of edible tea pigment, it is the brown amorphous powder, it is a kind of water colo(u)r that includes effective constituent theabrownin, thearubigins and theoflavin, it is characterized in that: the weight content of theabrownin is 15-18%, the weight content of theoflavin is 1.5-3%, the weight content of thearubigins is 2-5%, other surplus.
2, edible tea pigment according to claim 1 is characterized in that: the pH value of this product 0.1% (weight) pure water solution is 8-9, and this product 0.1% (weight) pure water solution is at 280nm visible light maximum absorption place, the absorption value E in the thick cuvette of 10mm
1cm 280nm〉=3.0.
3, the production method of the described tea pigment of a kind of claim 1, it is characterized in that: (a) tealeaves is by 1: 15-30 doubly (weight) adds water after juice is got in decoction, fried liquid is used in the compound that is alkalescence in the aqueous solution and alkalizes, regulate PH8-10, at 80-90 ℃ of 1/2-6 that heats concentrated this alkaline solution to the original volume amount down, get concentrated solution then; (b) concentrated solution transfers to PH3-6 with acid, and acidizing fluid adds ethanol 1-10 volume doubly to be measured, and backflow 0.5-2 hour, gets alcohol reflux liquid; (c) alcohol reflux liquid is used in the compound that is alkalescence in the aqueous solution and is adjusted to PH7-10, and post precipitation filters, and gets the tea pigment crystallization, and the tea pigment crystallization is spray-dried, promptly gets this tea pigment.
4, the production method of tea pigment according to claim 3 is characterized in that: the compound that wherein is alkalescence in the aqueous solution is sodium hydroxide, yellow soda ash, sodium bicarbonate.
5, the production method of tea pigment according to claim 3 is characterized in that: the acid of being adopted is hydrochloric acid, oxalic acid, acetic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93110414A CN1036309C (en) | 1993-01-01 | 1993-01-01 | Tea pigment and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93110414A CN1036309C (en) | 1993-01-01 | 1993-01-01 | Tea pigment and preparation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1074459A CN1074459A (en) | 1993-07-21 |
| CN1036309C true CN1036309C (en) | 1997-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93110414A Expired - Fee Related CN1036309C (en) | 1993-01-01 | 1993-01-01 | Tea pigment and preparation thereof |
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| Country | Link |
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| CN (1) | CN1036309C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924965A (en) * | 2012-10-25 | 2013-02-13 | 常州大学 | Tea tree fruit reddish brown pigment and its preparation method and use |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101455257B (en) * | 2009-01-08 | 2012-02-22 | 云南农业大学 | Fermentation method for preparing theabrownin |
| CN101696269B (en) * | 2009-10-29 | 2011-06-08 | 中国农业科学院茶叶研究所 | Method for preparing theabrownins by using tea polyphenols as raw materials |
| CN101715957B (en) * | 2009-11-18 | 2012-10-24 | 南京中医药大学 | Compound tea pigment with the function of improving hypoxia tolerance, preparation method and application thereof |
| CN102258099B (en) * | 2011-05-27 | 2013-02-06 | 云南农业大学 | Camellia sinensisvar assamica Pu'er tea theabrownin and application thereof |
| CN105166197A (en) * | 2015-09-09 | 2015-12-23 | 吴宝元 | Tea leaf pigment extraction method |
| CN106578219B (en) * | 2016-12-06 | 2020-04-21 | 江南大学 | High-efficiency purification method of thearubigin prepared by chemical oxidation of tea polyphenol |
| CN106928746A (en) * | 2017-04-28 | 2017-07-07 | 赵云国 | A kind of preparation method of natural Dragon Well tea Tea Pigment |
-
1993
- 1993-01-01 CN CN93110414A patent/CN1036309C/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| 食品与发酵工业(91年第5期) "食用天然色素-茶黄色素的初步研究"宛晓春等 * |
| 食品工业(1979年第5期) "茶色素的纤维蛋白无溶解作用的动物实验研究" 杨祖才等;食品与发酵工业(91年第5期) "食用天然色素-茶黄色素的初步研究"宛晓春等 * |
| 食品工业(1979年第5期) "茶色素的纤维蛋白无溶解作用的动物实验研究" 杨祖才等 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924965A (en) * | 2012-10-25 | 2013-02-13 | 常州大学 | Tea tree fruit reddish brown pigment and its preparation method and use |
| CN102924965B (en) * | 2012-10-25 | 2014-03-05 | 常州大学 | Tea tree fruit reddish brown pigment and its preparation method and use |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1074459A (en) | 1993-07-21 |
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