CN1027279C - Extraction of brown pigments from Pasania cuspidata - Google Patents
Extraction of brown pigments from Pasania cuspidata Download PDFInfo
- Publication number
- CN1027279C CN1027279C CN 88105391 CN88105391A CN1027279C CN 1027279 C CN1027279 C CN 1027279C CN 88105391 CN88105391 CN 88105391 CN 88105391 A CN88105391 A CN 88105391A CN 1027279 C CN1027279 C CN 1027279C
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- CN
- China
- Prior art keywords
- pasania cuspidata
- brown pigments
- solution
- pasania
- cuspidata
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- Expired - Fee Related
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- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The present invention relates to a method for preparing the brown pigment of pasania cuspidata, and the brown pigment is directly prepared from the leaves of pasania cuspidata through chemical oxidization. An alkaline water solution is added to the leaves of pasania cuspidata to carry out heating oxidization, and then, the pigment is deposited by an acid precipitation method; a polar organic solvent is used for purifying deposits, and the refined products of the brown pigment are obtained after dryness. The rate of extraction reaches about 10%, the products are particles or powder with bright color, high safety, no moisture absorption, no deterioration, good water solubility, strong coloring power and high stability of colors and light and pH values higher than 5. The brown pigment of pasania cuspidata can be used as the sugar-coatings of medicines as well as a coloring agent for various kinds of food, comprising candies, cold drinks, beverages and cakes. The brown pigment has good effect after being used for a food processing factory.
Description
The invention relates to Pasania cuspidata Lithocarpuspolystachyus(Wall.) preparation method of Rehd. or sweet tea brown pigments.The Pasania cuspidata brown pigments is the tinting material that is used for candy, cold drink, beverage, pastry foodstuff, can also be as the sugar-coat tinting material of medicine.
Before the present invention, a kind of merit gram force brown pigments of known artificial chemosynthesis is arranged, strong coloring force, good stability, cost is low, lovely luster, because it has harm to HUMAN HEALTH, forbidden abroad in food, using, this pigment China also excludes the use list.In addition, also has a kind of known cacao color, though its preparation method is not artificial chemosynthesis, the edible safety height, but it is the cacao color of being produced by the cocoa beans of import, the cost height, the concentrated extracting solution consumes energy is many, and the easy moisture absorption of product need pack.The liquid cacao color that only has Yingtan magnificent Kang Tianransesuchang in Jiangxi to produce that provides in the market, packing, transportation, use inconvenience, long easily generation of storage time gone bad.
Task of the present invention is to provide a kind of Pasania cuspidata brown pigments of directly being made through chemical oxidation by Pasania cuspidata leaf or sweet tea.This brown pigments edible safety height is compared with cacao color, strong coloring force, and in pH12 buffered soln, extinction value E
1% 1cm410nm=128, lovely luster, cost is low, and consumes energy is few, and product is nonhygroscopic, and packing, transportation, easy to use can Long-term Storage be never degenerated.
Solution of the present invention is: add inorganic base aqueous solution in Pasania cuspidata leaf or sweet tea, this mineral alkali can produce OH in the aqueous solution
-Ion heats, and quickens its oxidation, and polyphenol compound and dihydrochalcone in the leaf are dissolved in the basic solution through the oxidation combination.Add inorganic acid aqueous solution again in solution, this mineral acid can produce H in the aqueous solution
+Ion transfers to pH1～2 with solution, and at this moment the Pasania cuspidata brown pigments precipitates from solution.To contain the pigementation thing and dissolve with polar organic solvent, and add inorganic base aqueous solution then and transfer to pH7.5, and reclaim polar organic solvent, drying obtains Pasania cuspidata brown pigments highly finished product.
The embodiment of the invention is: with Pasania cuspidata cured leaf 500 grams, putting into stainless steel extracts tube to add concentration is that 0.1% the NaOH aqueous solution is to flooding the Pasania cuspidata cured leaf, heated and boiled one hour, and intermittently stir, emit solution then, the NaOH aqueous solution that adds same concentration again is to flooding the Pasania cuspidata leaf, heated and boiled 40 minutes, emit solution, twice solution is merged.After solution was cooled to 20～25 ℃, adding concentration was 1: 1 the HCl aqueous solution, adjusted solution to pH1～2, left standstill more than one hour, removed its upper clear supernate with siphonage, obtained to contain the throw out of brown pigments.Adding concentration is 80% ethanol 1500ml dissolving pigment in the throw out of brown pigments, separate with whizzer, remove impurity, collect centrifugate, be adjusted to pH7.5 with concentration for the 10%NaOH aqueous solution, after recovery ethanol does not have the alcohol flavor, insert drying under 90～100 ℃ of conditions, obtain Pasania cuspidata brown pigments highly finished product 52 and restrain.
According to above-mentioned preparation method, the Pasania cuspidata brown pigments can reach about 10%, and its pigment is brown granular shape or powdery, nonhygroscopic never degenerating, edible safety height.The painted application test that carries out candy, ice-creams, cake in food processing plant proves, this pigment good water solubility is easy to use, strong coloring force, and to light, heat and the above color and luster in pH＞5 are stable.
Claims (5)
1, a kind of preparation method of Pasania cuspidata brown pigments is characterized in that Pasania cuspidata cured leaf or sweet tea as raw material, process:
A. Pasania cuspidata cured leaf 500 grams are put into stainless steel cask, add concentration and be 0.1% aqueous sodium hydroxide solution to flooding the Pasania cuspidata cured leaf, heated and boiled one hour, emit extracting solution, and then to add concentration be that 0.1% aqueous sodium hydroxide solution is to flooding the Pasania cuspidata leaf, heated and boiled 40 minutes is emitted extracting solution, and extracted twice liquid merges.
B. the extracting solution of twice merging is cooled to 20～25 ℃, and adding concentration is 1: 1 aqueous hydrochloric acid, adjusts extracting solution to pH1～2, leaves standstill more than one hour.
C. inhale the clear liquid that goes to throw out top with siphonage, obtain the brown pigments throw out.
D. in the brown pigments throw out, add concentration and be 80% ethanol 1500ml solution dissolving brown pigments wherein, separate with whizzer then, collect centrifugate.
E. adding concentration in centrifugate is 10% aqueous sodium hydroxide solution, is adjusted to pH7.5, reclaims drying in 90～100 ℃ of conditions of ethanol postposition, obtains Pasania cuspidata brown pigments highly finished product.
2,, it is characterized in that in the Pasania cuspidata cured leaf, adding concentration sodium hydroxide and be 0.1% the aqueous solution by the preparation method of the described Pasania cuspidata brown pigments of claim 1.
3, by the preparation method of the described Pasania cuspidata brown pigments of claim 1, it is characterized in that in the extracting solution of twice merging, adding concentration of hydrochloric acid solution and be with the water ratio be 1: 1.
4,, it is characterized in that in the brown pigments throw out, adding alcohol concn and be 80% the aqueous solution by the preparation method of the described Pasania cuspidata brown pigments of claim 1.
5, by the preparation method of the described Pasania cuspidata brown pigments of claim 1, the concentration that it is characterized in that adding sodium hydroxide solution in centrifugate is 10% the aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105391 CN1027279C (en) | 1988-03-31 | 1988-03-31 | Extraction of brown pigments from Pasania cuspidata |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105391 CN1027279C (en) | 1988-03-31 | 1988-03-31 | Extraction of brown pigments from Pasania cuspidata |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1030778A CN1030778A (en) | 1989-02-01 |
| CN1027279C true CN1027279C (en) | 1995-01-04 |
Family
ID=4833588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88105391 Expired - Fee Related CN1027279C (en) | 1988-03-31 | 1988-03-31 | Extraction of brown pigments from Pasania cuspidata |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027279C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058855C (en) * | 1996-08-28 | 2000-11-29 | 石玉林 | Sweet tea and its prepn |
| CN104497622B (en) * | 2014-12-04 | 2016-06-15 | 常州大学 | A kind of Camellia sinensis arnotto brown pigment extracting method |
| CN104672948B (en) * | 2015-02-15 | 2016-08-24 | 广西壮族自治区林业科学研究院 | The method of Pasania cuspidata brown pigment is extracted in a kind of response phase method optimization |
| CN105001668A (en) * | 2015-08-04 | 2015-10-28 | 常州市好利莱光电科技有限公司 | Tea tree fruit reddish brown pigment extracting method |
| CN106234918A (en) * | 2016-07-30 | 2016-12-21 | 广州市威伦食品有限公司 | A kind of natural brown food coloring and preparation method thereof |
| CN110041188A (en) * | 2019-05-22 | 2019-07-23 | 东华理工大学 | A method of extracting dihydrochalcone and brown pigment simultaneously from Pasania cuspidata leaf |
-
1988
- 1988-03-31 CN CN 88105391 patent/CN1027279C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1030778A (en) | 1989-02-01 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |