CN1546484A - Method for extracting tea polyphenols - Google Patents
Method for extracting tea polyphenols Download PDFInfo
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- CN1546484A CN1546484A CNA2003101111817A CN200310111181A CN1546484A CN 1546484 A CN1546484 A CN 1546484A CN A2003101111817 A CNA2003101111817 A CN A2003101111817A CN 200310111181 A CN200310111181 A CN 200310111181A CN 1546484 A CN1546484 A CN 1546484A
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- tea
- polyphenol
- wash
- stir
- filler
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Abstract
The invention provides a process for preparing tea polyphenol which comprises, making adsorption material, leaching out adsorption, and elution. Compared with the prior art, the beneficial effects of the invention include simplified process, stabilized product quality, and low cost of manufacture.
Description
Technical field: the extracting method that the present invention relates to a kind of tea-polyphenol.
Background technology: extracting tea-polyphenol at present from tealeaves has three kinds of extraction process, the precipitator method and resin adsorption methods; Wherein: the extraction process yield is low, and consumption of organic solvent is big, cost is high, product purity is low; The precipitator method have been used the toxic metal precipitation agent, and quality product and environment are all produced detrimentally affect; Now generally adopt the full synthetic hydrogen bonding adsorption resin of using with the resin method, existing problems are resin costlinesses, and loading capacity is low, resin elution, regeneration trouble, thereby be unsuitable for extracting on a large scale tea-polyphenol.
Summary of the invention: the objective of the invention is to: the extracting method that a kind of tea-polyphenol is provided, be used for the Adsorption of Tea Polyphenols constituents, have and produce simply, cost is low, and filler can reuse, and regeneration is simple, the product yield height, composition purity height is fit to advantages such as scale operation, and a step can get the thick trimethyl-xanthine of byproduct.
The present invention is achieved in that and comprises that adsorption stuffing is synthetic and use two aspects.
(1) get polymeric amide PA6, be dissolved in the strong acid solution, stir, dissolve into uniform solution, leave standstill, add inorganic filling material, high-speed stirring is condensed PA6, adheres to the inorganic filling material surface, filters, and waits until adsorption stuffing towards Xian.
(2) tealeaves is added the leaching solvent, heats up, leaches tea component, filter coarse filtration liquid.Ultrafiltration gets clear liquor then.Clear liquor is mixed with adsorption stuffing, the abundant Adsorption of Tea Polyphenols of filler no tea-polyphenol to the solution is detected.
(3) filler that will adsorb tea-polyphenol is also regenerated with ammoniacal liquor or ethanolic soln wash-out.
The present invention compared with prior art, have that technology is simple, the filling adsorption capacity big, wash-out regeneration easily, produce that composition is low, good product quality, high efficiency and can be suitable for advantage such as extensive, industrialization production, successfully test by suitability for industrialized production.
Embodiments of the invention 1:
(1) gets 200 milliliters of concentrated hydrochloric acids, add polymeric amide PA6 powder 500 grams, be stirred to PA6 under the room temperature and dissolve fully, become homogeneous state solution.Left standstill 3 hours.Add 80 order activated carbon powders, 50 grams, high-speed stirring is mixed, and to forming the colloidal viscous fluid, is actually particulate state suspended state colloidal solution.Filter, flushing, screening, PA6 content is 55% adsorption stuffing 98 grams.
(2) 200 gram tealeaves are pulverized, added 1600 milliliters in water, heat, stir, extracted 20 minutes, leach residue, be chilled to room temperature, coarse filtration to 80 ℃.Ultrafiltration then is with adsorption stuffing 100 grams of above-mentioned example preparation, tea-polyphenol in the dress post absorption filtrate.Wash adsorption stuffing with water to colourless.Be eluted to no tea-polyphenol with ammonia soln and flow out, the reclaim under reduced pressure ammonia, dry that tea-polyphenol 38.6 restrains, polyphenol content is 89%.
(3) wash the adsorption stuffing 10 minutes of no tea-polyphenol with ammonia soln, Adsorption of Tea Polyphenols again, adsorptive power no change.Adsorptive power does not have noticeable change after testing ten times.
Embodiments of the invention 2:
(1) gets 200 milliliter of 50% sulphuric acid soln, 45 ℃ of temperature.Stir adding polymeric amide PA6 powder 50 grams, the insulated and stirred dissolving forms homogeneous shape solution, and insulation was left standstill 3 hours, adds 100 order diatomite 60 and restrains, and high-speed stirring is mixed, up to forming thick colloidal solution.Filter, flushing, screening, PA6 content is 48% adsorption stuffing 105 grams.
(2) 200 gram tealeaves are pulverized, added 1600 milliliters in water, heat, stir, extracted 20 minutes, leach residue, be chilled to room temperature, coarse filtration to 80 ℃.Ultrafiltration then is with adsorption stuffing 100 grams of above-mentioned example preparation, tea-polyphenol in the dress post absorption filtrate.Wash adsorption stuffing with water to colourless.Be eluted to no tea-polyphenol with 80% ethanolic soln and flow out, decompression recycling ethanol, dry that tea-polyphenol 36.5 restrains, polyphenol content is 87%.
(3) ethanolic soln continued the wash-out adsorption stuffing 10 minutes, Adsorption of Tea Polyphenols again, adsorptive power no change.Adsorptive power does not have noticeable change after testing ten times.
Claims (1)
1. the extracting method of a tea-polyphenol, it comprises the sorbing material preparation, leaches steps such as absorption, wash-out, it is characterized in that:
(1) get polymeric amide PA6 powder, use the concentrated acid stirring and dissolving, leave standstill, add thin mineral filler powder then, heat up or do not heat up, stir and condense into sorbing material,
(2) tealeaves is pulverized added the leaching solvent, stir, be incubated, leach, filter to get filtrate, adsorption column is crossed in ultrafiltration, stops to go up sample after filler is saturated, with elutriant respectively wash-out pigment, trimethyl-xanthine, tea-polyphenol wash to the greatest extent, concentrating under reduced pressure obtains product.
(3) continue to handle the regenerating resin filler with elutriant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101111817A CN1546484A (en) | 2003-12-12 | 2003-12-12 | Method for extracting tea polyphenols |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101111817A CN1546484A (en) | 2003-12-12 | 2003-12-12 | Method for extracting tea polyphenols |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1546484A true CN1546484A (en) | 2004-11-17 |
Family
ID=34335972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101111817A Pending CN1546484A (en) | 2003-12-12 | 2003-12-12 | Method for extracting tea polyphenols |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1546484A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104225456A (en) * | 2014-04-29 | 2014-12-24 | 遵义陆圣康源科技开发有限责任公司 | Pharmaceutical composition for reducing blood sugar |
| CN104474135A (en) * | 2014-04-29 | 2015-04-01 | 遵义陆圣康源科技开发有限责任公司 | Pharmaceutical composition with auxiliary protection function of treating chemical liver injury |
| CN107455521A (en) * | 2017-08-16 | 2017-12-12 | 广西克鲁尼茶叶生物科技有限公司 | A kind of complex art for being used for the high efficiency extraction Tea Polyphenols from discarded tealeaves |
-
2003
- 2003-12-12 CN CNA2003101111817A patent/CN1546484A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104225456A (en) * | 2014-04-29 | 2014-12-24 | 遵义陆圣康源科技开发有限责任公司 | Pharmaceutical composition for reducing blood sugar |
| CN104474135A (en) * | 2014-04-29 | 2015-04-01 | 遵义陆圣康源科技开发有限责任公司 | Pharmaceutical composition with auxiliary protection function of treating chemical liver injury |
| CN104225456B (en) * | 2014-04-29 | 2017-10-03 | 遵义陆圣康源科技开发有限责任公司 | A kind of hypoglycemic pharmaceutical composition |
| CN107455521A (en) * | 2017-08-16 | 2017-12-12 | 广西克鲁尼茶叶生物科技有限公司 | A kind of complex art for being used for the high efficiency extraction Tea Polyphenols from discarded tealeaves |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |