CN102247488A - Tea polyphenol extraction technology - Google Patents
Tea polyphenol extraction technology Download PDFInfo
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- CN102247488A CN102247488A CN2010101817401A CN201010181740A CN102247488A CN 102247488 A CN102247488 A CN 102247488A CN 2010101817401 A CN2010101817401 A CN 2010101817401A CN 201010181740 A CN201010181740 A CN 201010181740A CN 102247488 A CN102247488 A CN 102247488A
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- percolation
- tea polyphenols
- tea
- tea polyphenol
- extractant
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Abstract
The invention discloses a tea polyphenol extraction technology. In the tea polyphenol extraction technology, a percolation method is adopted, and tea polyphenol in tea or tea processing leftovers is extracted with a mixed solvent extraction method. The tea polyphenol extraction technology is simple and practical, has the advantages of safe technical flow and low cost and is suitable for industrial production, the extraction rate and the purity of the tea polyphenol is greatly improved, and the whole technical process is environmentally-friendly and is free from pollution.
Description
Technical field:
The present invention relates to a kind of employing percolation, the mixed extractant solvent method is extracted in the Folium Camelliae sinensis or the extraction process of tea polyphenols in the Tea Processing leftover bits and pieces.
Background technology:
The tea polyphenols that the extraction purification obtains in the Folium Camelliae sinensis is the Polyphenols thing of a class based on catechin, it is a kind of ideal antioxidant from natural food, it has pharmacological functions such as defying age, radioprotective, removing human free radical, blood sugar lowering, inhibition tumor cell, has important use in daily-use chemical industry, food processing, medicine and other fields.The extracting method of tea polyphenols mainly contains in the at present domestic and international Folium Camelliae sinensis: organic solvent extractionprocess, metal ion salt precipitation method, resin adsorption method and supercritical fluid extraction.Organic solvent extractionprocess technology is easy, mature and stable, and product purity is higher, requires not harsh to tea raw material.In addition, organic solvent can recycling, and production cost is low.But there is the low defective of extraction ratio in traditional single organic solvent extraction.The ion precipitation extraction method is to make precipitant to the deleterious heavy metal of human body, and its product is that the food and medicine industry can not be accepted.The equipment that the extensive seriality of resin adsorption method is produced lacks, and only is suitable for production in a small amount; Need be to the adsorbent of the strong high adsorption capacity of tea polyphenols selectivity, and the adsorbent large usage quantity, and since in the Folium Camelliae sinensis protein, polysaccharide etc. easily stop up the resin space, cause the resin inactivation, resin activation and regenerate cumbersomely, the resin price height is invested bigger.The supercritical fluid extraction rate is extremely low, and also there are many difficulties in large-scale industrial production.
Summary of the invention:
In order to overcome the defective of said method, it is simple to the invention provides a kind of technology, green non-pollution, constant product quality, the extraction process of the tea polyphenols that extraction ratio height and purity are high.The present invention adopts percolation, and the mixed extractant solvent method is extracted in the Folium Camelliae sinensis or tea polyphenols in the Tea Processing leftover bits and pieces.
Technical scheme of the present invention:
(1) percolation extracts: Folium Camelliae sinensis or Tea Processing leftover bits and pieces are suitably pulverized, are soaked with aqueous organic solvent such as aquiferous ethanol, acetone (being the percolation agent), in the percolator of packing into or in the equipment of similar percolation, usefulness percolation agent percolation, until percolate for closely colourless.
(2) concentrate percolate
(3) mixed extractant solvent: add ethyl acetate: the extracting mixed extractant of n-butyl alcohol=1: 1.
(4) reclaim extractant
(5) lyophilization: vacuum lyophilization obtains the tea polyphenols product.
The present invention is a kind of new extraction process of tea polyphenols, it is characterized in that adopting percolation, and the mixed extractant solvent method is extracted in the Folium Camelliae sinensis or tea polyphenols in the Tea Processing leftover bits and pieces.
Superiority of the present invention is:
(1) features simple and practical process, technological process safety, whole technical process green non-pollution.
(2) percolation agent and mixed extractant can recyclings, and production cost is low.
(3) greatly improved the extraction ratio of tea polyphenols.
The specific embodiment:
Embodiment 1: utilize percolation, the mixed extractant solvent method is extracted the technology of tea polyphenols in the Folium Camelliae sinensis, and its step is as follows:
100g Folium Camelliae sinensis is suitably pulverized, and is that aqueous organic solvent such as aquiferous ethanol, acetone soak with the percolation agent, reinstall in the percolator or the equipment of similar percolation in, with percolation agent percolation, until percolate for closely colourless.Concentrate percolate, add ethyl acetate: the extracting mixed extractant of n-butyl alcohol=1: 1.Reclaim extractant, vacuum lyophilization again obtains 15g dark brown powdery tea polyphenols product.With reference to tea polyphenols and catechin content detecting method in the GB/T 8313-2008 Folium Camelliae sinensis this product is carried out assay, the content of this product is 96.6%.
Claims (3)
1. the extraction process of a tea polyphenols adopts percolation, and the mixed extractant solvent method is extracted in the Folium Camelliae sinensis or tea polyphenols in the Tea Processing leftover bits and pieces.Technology comprises: percolation extracts, concentrated extracting solution, and mixed extractant solvent reclaims extractant, lyophilization.
2. according to claims 1 described tea polyphenols extraction process, it is characterized in that extracting with percolation, in laboratory, use percolator, the equipment of the similar percolator of industrial usefulness is done the percolation agent with aqueous organic solvent such as aquiferous ethanol, acetone.
3. according to claims 1 described tea polyphenols extraction process, it is characterized in that making extractant with the mixed solvent of ethyl acetate and n-butyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101817401A CN102247488A (en) | 2010-05-19 | 2010-05-19 | Tea polyphenol extraction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101817401A CN102247488A (en) | 2010-05-19 | 2010-05-19 | Tea polyphenol extraction technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102247488A true CN102247488A (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101817401A Pending CN102247488A (en) | 2010-05-19 | 2010-05-19 | Tea polyphenol extraction technology |
Country Status (1)
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| CN (1) | CN102247488A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104172179A (en) * | 2014-07-03 | 2014-12-03 | 王健 | Extraction method of tea polyphenol |
| CN107235950A (en) * | 2017-06-26 | 2017-10-10 | 广西克鲁尼茶叶生物科技有限公司 | A kind of normal temperature extracting method of Tea Polyphenols |
| CN107253941A (en) * | 2017-06-26 | 2017-10-17 | 广西克鲁尼茶叶生物科技有限公司 | A kind of method of the extracting tea polyphenol at normal temperature from tea grounds |
| CN109053821A (en) * | 2018-09-30 | 2018-12-21 | 湖南华诚生物资源股份有限公司 | The method of tea polyphenols, total amino acid, chromocor compound is extracted from grosvenor momordica leaf |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153048A (en) * | 2007-06-28 | 2008-04-02 | 复旦大学 | Tea polyphenol monomer and separation process thereof |
-
2010
- 2010-05-19 CN CN2010101817401A patent/CN102247488A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153048A (en) * | 2007-06-28 | 2008-04-02 | 复旦大学 | Tea polyphenol monomer and separation process thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘伟等: "茶多酚制取工艺研究进展", 《化工时刊》 * |
| 杨彪等: "天然抗氧化剂茶多酚的研究进展", 《贵州师范大学学报(自然科学版)》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104172179A (en) * | 2014-07-03 | 2014-12-03 | 王健 | Extraction method of tea polyphenol |
| CN107235950A (en) * | 2017-06-26 | 2017-10-10 | 广西克鲁尼茶叶生物科技有限公司 | A kind of normal temperature extracting method of Tea Polyphenols |
| CN107253941A (en) * | 2017-06-26 | 2017-10-17 | 广西克鲁尼茶叶生物科技有限公司 | A kind of method of the extracting tea polyphenol at normal temperature from tea grounds |
| CN109053821A (en) * | 2018-09-30 | 2018-12-21 | 湖南华诚生物资源股份有限公司 | The method of tea polyphenols, total amino acid, chromocor compound is extracted from grosvenor momordica leaf |
| CN109053821B (en) * | 2018-09-30 | 2020-06-09 | 湖南华诚生物资源股份有限公司 | Method for extracting tea polyphenol, total amino acids and flavone compounds from momordica grosvenori leaves |
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Application publication date: 20111123 |