CN109535207A - A kind of method of high efficiency extraction tea polyphenols - Google Patents
A kind of method of high efficiency extraction tea polyphenols Download PDFInfo
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- CN109535207A CN109535207A CN201811201961.3A CN201811201961A CN109535207A CN 109535207 A CN109535207 A CN 109535207A CN 201811201961 A CN201811201961 A CN 201811201961A CN 109535207 A CN109535207 A CN 109535207A
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- C07—ORGANIC CHEMISTRY
- C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
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Abstract
The invention discloses a kind of method of high efficiency extraction tea polyphenols, method includes: to be dried and crush after the fresh tea passes high-temperature sterilization by picking；The tea-leaf power of crushing is mixed with 30 degrees Celsius, the ethanol solution 3:1 in mass ratio of 80% concentration and impregnates 40min, soak is carried out being heated to boiling, obtains alcohol mixeding liquid；The temperature of the alcohol mixeding liquid is down to 70 degree or so, the ethyl acetate that quality is alcohol mixeding liquid half is added, temperature maintains 60-70 degrees Celsius of stirring 20min and the solution filter and remove residue after stirring is obtained tea polyphenol extract liquid；Into the tea polyphenol extract liquid plus distilled water is washed, and ethyl alcohol and ethyl acetate are distilled to recover after concentration, obtains tea polyphenols finished product.The present invention has the advantage that compared with prior art avoids tealeaves tea polyphenols when crushing from aoxidizing; it protects tea polyphenols nutritional ingredient not suffer a loss, extracts sufficiently and efficiently, extraction cost is lower and less pollution; by filtering and impurity removing, concentration and distillation, the higher tea polyphenols finished product of purity is obtained.
Description
Technical field
The present invention relates to tea polyphenols preparation technical field more particularly to a kind of methods of high efficiency extraction tea polyphenols.
Background technique
Tea polyphenols are polyhydroxyl class compounds contained in tealeaves, main chemical compositions be flavanol compound, flavones and
The complex of the compounds such as flavonols, anthocyan, phenolic acid and depside, polymerization phenols.Wherein catechin compounds
For the bulk composition of tea polyphenols, the 65%-80% of tea polyphenols total amount is accounted for.Tea polyphenols are the main components to form tealeaves color, smell and taste,
It is also main nutrient composition beneficial to human body in tealeaves.
The preparation method of existing tea polyphenols, specifically includes that solvent extraction method: tealeaves being impregnated with polar solvent, then
Leaching liquid is carried out liquid-liquid extraction and separation, is finally concentrated to get product, the method high production cost, and easily cause pollution；Ion
The precipitation method: precipitated metal tea polyphenols are used, separate it with caffeine, the method use the heavy metals toxic to human body to precipitate
Agent, product difficulty reach the requirement of food and medicine industry；With post separation method: including gel column, adsorption column and ion exchange column method,
Key is column filler material and elution, but the method column filler material is very expensive, and with a variety of and a large amount of organic solvents when eluting,
Be not suitable for industrialized production.As it can be seen that the generally existing various drawbacks of traditional Methods of Extraction of Tea-polyphenols, how high efficiency extraction high-purity
Tea polyphenols be still a urgent problem to be solved.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of methods of high efficiency extraction tea polyphenols.
The present invention is achieved by the following technical solutions:
A kind of method of high efficiency extraction tea polyphenols, which comprises
It will be dried and crush after the fresh tea passes high-temperature sterilization of picking；
The tea-leaf power of crushing is mixed into immersion with 30 degrees Celsius, the ethanol solution 3:1 in mass ratio of 80% concentration
40min carries out being heated to boiling, obtains alcohol mixeding liquid to soak；
The temperature of the alcohol mixeding liquid is down to 70 degree or so, the acetic acid second that quality is alcohol mixeding liquid half is added
Ester stirs 20min in the case where temperature maintains 60-70 degrees Celsius, by the solution filter and remove residue after stirring, obtains tea polyphenols
Extracting solution；
Into the tea polyphenol extract liquid plus distilled water is washed, and ethyl alcohol and ethyl acetate are distilled to recover after concentration, is obtained
Tea polyphenols finished product.
Optionally, it is dried and crushes after the fresh tea passes high-temperature sterilization by picking, comprising:
By the fresh tea passes of picking through high-temperature sterilization enzyme deactivation 5min, carry out ultra-low temperature liquid nitrogen accelerated freeze-drying until removing 95% with
On moisture, the tealeaves after drying is put into pulverizer and crushes and use the screen to filtrate, the tea-leaf power crushed.
Optionally, described that soak is carried out being heated to boiling, obtain alcohol mixeding liquid, comprising:
Soak is carried out being heated to boiling, and maintains boiling 30min, obtains alcohol mixeding liquid.
Optionally, the solution filter and remove residue by after stirring, obtains tea polyphenol extract liquid, comprising:
Ceramic membrane is chosen to the solution filtering and impurity removing after stirring, obtains tea polyphenol extract liquid.
It is optionally, described to add distilled water to be washed into the tea polyphenol extract liquid, comprising:
Distilled water of the temperature less than 20 degree is added into the tea polyphenol extract liquid to be washed.
The present invention has the advantage that compared with prior art fresh tea passes are sterilized after drying remove moisture removal, prevent tealeaves from existing
Cause tea polyphenols to aoxidize when crushing, tea polyphenols nutritional ingredient is protected not suffer a loss, extracts tea using ethyl alcohol, clear water and ethyl acetate
Polyphenol component guarantees to extract more sufficiently and efficiently, and extraction cost is lower and less pollution, by filtering and impurity removing, concentration and distillation,
To obtain the higher tea polyphenols finished product of purity.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the method for high efficiency extraction tea polyphenols provided in an embodiment of the present invention.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Referring to Fig. 1, Fig. 1 is a kind of flow diagram of the method for high efficiency extraction tea polyphenols provided in an embodiment of the present invention,
It may include steps of:
S101 will be dried and crush after the fresh tea passes high-temperature sterilization of picking；
Specifically, it is straight that ultra-low temperature liquid nitrogen accelerated freeze-drying can be carried out by the fresh tea passes of picking through high-temperature sterilization enzyme deactivation 5min
To the moisture of 95% or more removing, the tealeaves after drying is put into pulverizer and crushes and use the screen to filtrate, the tealeaves crushed
Powder.
The tea-leaf power of crushing is mixed immersion with 30 degrees Celsius, the ethanol solution 3:1 in mass ratio of 80% concentration by S102
40min carries out being heated to boiling, obtains alcohol mixeding liquid to soak；
Specifically, can carry out being heated to boiling to soak, and boiling 30min is maintained, obtains alcohol mixeding liquid.
The temperature of the alcohol mixeding liquid is down to 70 degree or so by S103, and the second that quality is alcohol mixeding liquid half is added
Acetoacetic ester stirs 20min in the case where temperature maintains 60-70 degrees Celsius, by the solution filter and remove residue after stirring, obtains tea
Polyphenol extracting solution；
Specifically, existing ceramic membrane can be chosen to the solution filtering and impurity removing after stirring, tea polyphenol extract is obtained
Liquid.
In S104, Xiang Suoshu tea polyphenol extract liquid plus distilled water is washed, and ethyl alcohol and acetic acid second are distilled to recover after concentration
Ester obtains tea polyphenols finished product.
It is washed specifically, distilled water of the temperature less than 20 degree can be added into the tea polyphenol extract liquid.
As it can be seen that moisture removal is removed in drying after fresh tea passes are sterilized, prevent tealeaves from causing tea polyphenols to aoxidize when crushing, protects tea
Polyphenol nutritional ingredient is not suffered a loss, and extracts tea polyphenols ingredient using ethyl alcohol, clear water and ethyl acetate, guarantees to extract more sufficiently and high
Effect, extraction cost is lower and less pollution, by filtering and impurity removing, concentration and distillation, thus obtain the higher tea polyphenols of purity at
Product.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of method of high efficiency extraction tea polyphenols, which is characterized in that the described method includes:
It will be dried and crush after the fresh tea passes high-temperature sterilization of picking；
The tea-leaf power of crushing is mixed with 30 degrees Celsius, the ethanol solution 3:1 in mass ratio of 80% concentration and impregnates 40min, it is right
Soak carries out being heated to boiling, and obtains alcohol mixeding liquid；
The temperature of the alcohol mixeding liquid is down to 70 degree or so, the ethyl acetate that quality is alcohol mixeding liquid half is added,
Temperature stirs 20min in the case where maintaining 60-70 degrees Celsius, by the solution filtering and impurity removing after stirring, obtains tea polyphenol extract
Liquid；
Into the tea polyphenol extract liquid plus distilled water is washed, and ethyl alcohol and ethyl acetate are distilled to recover after concentration, it is more to obtain tea
Phenol finished product.
2. the method for high efficiency extraction tea polyphenols according to claim 1, which is characterized in that the fresh tea passes by picking are high
It is dried and crushes after temperature sterilizing, comprising:
By the fresh tea passes of picking through high-temperature sterilization enzyme deactivation 5min, ultra-low temperature liquid nitrogen accelerated freeze-drying is carried out until removing 95% or more
Tealeaves after drying is put into pulverizer and crushes and use the screen to filtrate by moisture, the tea-leaf power crushed.
3. the method for high efficiency extraction tea polyphenols according to claim 2, which is characterized in that described to be heated to soak
To boiling, alcohol mixeding liquid is obtained, comprising:
Soak is carried out being heated to boiling, and maintains boiling 30min, obtains alcohol mixeding liquid.
4. the method for high efficiency extraction tea polyphenols according to claim 3, which is characterized in that the solution mistake by after stirring
It filters out miscellaneous, obtains tea polyphenol extract liquid, comprising:
Ceramic membrane is chosen to solution filtering removal tea grounds and impurity component after stirring, obtains tea polyphenol extract liquid.
5. the method for high efficiency extraction tea polyphenols according to claim 1-4, which is characterized in that described to the tea
In polyphenol extracting solution plus distilled water is washed, comprising:
Distilled water of the temperature less than 20 degree is added into the tea polyphenol extract liquid to be washed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811201961.3A CN109535207A (en) | 2018-10-16 | 2018-10-16 | A kind of method of high efficiency extraction tea polyphenols |
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| CN201811201961.3A CN109535207A (en) | 2018-10-16 | 2018-10-16 | A kind of method of high efficiency extraction tea polyphenols |
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| CN109535207A true CN109535207A (en) | 2019-03-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041306A (en) * | 2021-03-22 | 2021-06-29 | 北京澳特舒尔保健品开发有限公司 | Preparation and purification method of tea polyphenol and application of tea polyphenol in weight-reducing products |
| CN115336648A (en) * | 2022-08-18 | 2022-11-15 | 襄阳康纳豪生物科技有限公司 | Extraction method for tea polyphenol production and processing |
| CN116058422A (en) * | 2022-12-16 | 2023-05-05 | 江苏德和生物科技有限公司 | Preparation method of tea polyphenol with low pesticide residue |
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|---|---|---|---|---|
| US6528099B1 (en) * | 1998-12-02 | 2003-03-04 | Adumim Chemicals Ltd. | Method for selectively obtaining antioxidant rich extracts from citrus fruits |
| CN107125371A (en) * | 2017-06-05 | 2017-09-05 | 南京融点食品科技有限公司 | A kind of tealeaves high efficiency extraction and the technique utilized |
| CN108478663A (en) * | 2018-06-27 | 2018-09-04 | 广西克鲁尼茶叶生物科技有限公司 | A kind of technique of the extraction of the high yield pulp1 from fresh tea passes tea polyphenols |
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2018
- 2018-10-16 CN CN201811201961.3A patent/CN109535207A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6528099B1 (en) * | 1998-12-02 | 2003-03-04 | Adumim Chemicals Ltd. | Method for selectively obtaining antioxidant rich extracts from citrus fruits |
| CN107125371A (en) * | 2017-06-05 | 2017-09-05 | 南京融点食品科技有限公司 | A kind of tealeaves high efficiency extraction and the technique utilized |
| CN108478663A (en) * | 2018-06-27 | 2018-09-04 | 广西克鲁尼茶叶生物科技有限公司 | A kind of technique of the extraction of the high yield pulp1 from fresh tea passes tea polyphenols |
Non-Patent Citations (1)
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| 陈政旭等: "铁观音茶中茶多酚的提取研究", 《绿色科技》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041306A (en) * | 2021-03-22 | 2021-06-29 | 北京澳特舒尔保健品开发有限公司 | Preparation and purification method of tea polyphenol and application of tea polyphenol in weight-reducing products |
| CN115336648A (en) * | 2022-08-18 | 2022-11-15 | 襄阳康纳豪生物科技有限公司 | Extraction method for tea polyphenol production and processing |
| CN116058422A (en) * | 2022-12-16 | 2023-05-05 | 江苏德和生物科技有限公司 | Preparation method of tea polyphenol with low pesticide residue |
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