CN110169472A - Method for extracting natural antioxidant for functional health tea - Google Patents
Method for extracting natural antioxidant for functional health tea Download PDFInfo
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- CN110169472A CN110169472A CN201910402890.1A CN201910402890A CN110169472A CN 110169472 A CN110169472 A CN 110169472A CN 201910402890 A CN201910402890 A CN 201910402890A CN 110169472 A CN110169472 A CN 110169472A
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- catechin
- functional health
- health tea
- extracting method
- natural inhibitor
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/16—Tea extraction; Tea extracts; Treating tea extract; Making instant tea
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/16—Tea extraction; Tea extracts; Treating tea extract; Making instant tea
- A23F3/22—Drying or concentrating tea extract
- A23F3/225—Drying or concentrating tea extract by evaporation, e.g. drying in thin layers, foam drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/364—Membrane distillation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Medicines Containing Plant Substances (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Cosmetics (AREA)
Abstract
The invention discloses a method for extracting a natural antioxidant for functional health-care tea, and relates to the technical field of tea processing. The extraction method comprises the steps of preparing extract, preparing a crude product of catechin, preparing catechin collecting liquid, and finally obtaining a finished product through microwave extraction, filtration and evaporation. The invention adopts distillation and micro-bead dispersing microwave treatment, avoids the use of chemical organic solvent as far as possible, reduces the residue, prepares the catechin with higher purity, and has wide application prospect.
Description
Technical field
The present invention relates to tea processing technical fields, and in particular to functional health tea natural inhibitor extracting method.
Background technique
Catechin, is a kind of phenols active material extracted from the natural plants such as tealeaves, and catechin has anti-swollen
The multiple pharmacological effects such as tumor, anti-oxidant, Anti-bacterium and protection heart and brain organ, these pharmacological activity are mainly by its polyhydroxy structure
It determines, wherein EGCG inoxidizability is the most prominent.But due to catechin there are it is fat-soluble low, stability is poor the disadvantages of, the big day of one's doom
Its development and application is made.
Patent of invention CN201510898020.X discloses a kind of preparation method that catechin is extracted from tealeaves, but work
Skill step remains unchanged complicated；Patent of invention CN00129830.5 discloses a kind of supercritical CO2The reversed technique for extracting catechin, but
It is that reaction condition is with high requirements and high cost, is not easy to promote；Patent of invention CN200810049869.X discloses a kind of extraction catechin
Method, but used the organic solvents such as petroleum ether, ethyl acetate and n-butanol, be easy to produce chemical residual.Therefore, people
Wish extraction efficiency and utilization rate that catechin is improved by more suitable preparation method.
Summary of the invention
Technical problem to be solved by the present invention lies in functional health tea natural inhibitor extracting method is provided, solve
Recovery rate is low in traditional extraction process, extracts the disadvantages of stability is poor.The technical problems to be solved by the invention are using below
Technical solution is realized:
Functional health tea natural inhibitor extracting method, comprising the following steps:
(1) first by 100-200 portions of tealeaves through drying, crushing, powder is made, the ethyl alcohol of volume fraction 65-75% is added,
Stirring and leaching in 60-70 DEG C of water bath with thermostatic control, cooled and filtered, filtrate distillation and concentration recycle ethyl alcohol, obtain extract medicinal extract；Its
In, the molar ratio of the ethyl alcohol of tealeaves and volume fraction 65-75% is 1:8-10；
(2) the polyvinylidene fluoride ultrafiltration film circulating filtration that extracting solution medicinal extract via hole diameter is 50-60nm is concentrated, until solid
Object content is 6-12%, obtains catechin crude product；
(3) catechin crude product is sent into distilling apparatus, in distilling apparatus under the action of blade applicator, is uniformly distributed in
Evaporator surface, under vacuum, light-component gas are directly entered interconderser condensation, flow into light component collector；Heavy constituent
Enter heavy constituent collector along evaporator tube inner wall, obtains catechin collection liquid；
(4) obtained catechin collection liquid is placed in the 65-75% alcohol solvent of 2 times of volumes, solution gross mass is added
Then the dispersion microballon of 0.5-1.2%, Microwave Extraction filter obtained extraction solution, gained filtrate is in powder through rotary evaporation
Last shape is got product.
It is 200-500ml/h, operation temperature 65- that catechin crude product, which enters distilling apparatus feed rate, in the step (3)
85℃。
Blade applicator revolving speed is 100-400r/min in the step (3), and evaporator surface temperature is 100-103 DEG C, vacuum
Degree is 0.5-25mmHg.
It is embedded with corn gelatinized starch according to mass ratio 1:3-5 in dispersion microballon by iron chloride in the step (4),
The diameter for dispersing microballon is 0.1-0.5mm.
Microwave power arranges 500-800W, Microwave Extraction 10-20s in the step (4).
It is described dispersion microballon the preparation method comprises the following steps:
(1) aqueous suspension containing corn gelatinized starch is mixed under the conditions of 40 DEG C, embedding medium is made；
(2) embedding medium is mixed with iron chloride, and gained mixture is granulated and is dried, temperature 30-60
DEG C, it is dry so that water activity in material after dry 0.2 hereinafter, to obtain the final product.
The content of corn gelatinized starch is 0.1-10g/100mL in the aqueous suspension containing corn gelatinized starch.
The corn gelatinized starch is heated to gelatinization by former cornstarch and is made, and heating temperature is 80-100 DEG C, when heating
Between be 5-20min.
The beneficial effects of the present invention are:
1, the isolated catechin of the present patent application, the technique small toxicity of selection, reagent is easily recycled, noresidue, institute
Sample purity reaches 93% or more, it is at low cost, the time is short, easy to operate.
2, the present invention is concentrated and combines distillation technique using ultrafiltration membrane circulating filtration, which does not use ethyl acetate, chlorine
It is imitative to wait organic solvents, also without using in the upper controversial macroreticular resin of residual component safety, greatly improve Product Safety, so
It is distilled afterwards using the distilling apparatus with blade applicator, to isolate and purify, enormously simplifies preparation process, reduce and be produced into
This, while avoiding the heated the problem of easily decomposing, polymerizeing of nutriment in tealeaves.
3, the present invention carries out further microwave abstracting using the dispersion microballon of preparation, since microwave causes catechin to collect
Material absorbing in liquid simultaneously discharges amount of heat, and this warm-up movement drives catechin and dispersion microballon irregular in feed liquid system
Movement, by collision play the role of grinding and stirring herein, accelerate extraction process, improve extraction efficiency, so that micro-
The time of Wave heating substantially reduces, and improves the extraction efficiency of catechin, reduces extraction cost, disperses being embedded in microballon
Object iron chloride plays the role of adjusting mixed solution pH, plays slow release effect, plays stabilization well to catechin.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
Functional health tea natural inhibitor extracting method, comprising the following steps:
(1) first by 100 portions of tealeaves through drying, crushing, powder is made, the ethyl alcohol of volume fraction 65% is added, at 60 DEG C
Stirring and leaching in water bath with thermostatic control, cooled and filtered, filtrate distillation and concentration recycle ethyl alcohol, obtain extract medicinal extract；Wherein, tealeaves and body
The molar ratio of the ethyl alcohol of fraction 65% is 1:8；
(2) the polyvinylidene fluoride ultrafiltration film circulating filtration that extracting solution medicinal extract via hole diameter is 50nm is concentrated, until solid content
Content is 6%, obtains catechin crude product；
(3) catechin crude product is sent into distilling apparatus, it is 200ml/ that catechin crude product, which enters distilling apparatus feed rate,
H, 65 DEG C of operation temperature；In distilling apparatus under the action of blade applicator, it is uniformly distributed in evaporator surface, blade applicator revolving speed is
100r/min, evaporator surface temperature is 100 DEG C, vacuum degree 0.5mmHg, under vacuum, during light-component gas is directly entered
Between condenser condense, flow into light component collector；Heavy constituent enters heavy constituent collector along evaporator tube inner wall, obtains catechu
Plain collection liquid；
(4) obtained catechin collection liquid is placed in 65% alcohol solvent of 2 times of volumes, solution gross mass is added
0.5% dispersion microballon, dispersion microballon is interior to be embedded with corn gelatinized starch according to mass ratio 1:3 by iron chloride, is dispersed micro-
The diameter of pearl is 0.1mm；Microwave Extraction is used again, and microwave power arranges 500W, Microwave Extraction 10s；Then obtained extraction is molten
Liquid filtering, gained filtrate get product through rotary evaporation in powdered.
Wherein, disperse microballon the preparation method comprises the following steps:
(1) aqueous suspension containing corn gelatinized starch is mixed under the conditions of 40 DEG C, embedding medium is made, wherein
The content of corn gelatinized starch is 0.1g/100mL；Corn gelatinized starch is heated to being gelatinized by former cornstarch, and heating temperature is
80 DEG C, heating time is made for 5min.
(2) embedding medium being mixed with iron chloride, and gained mixture is granulated and is dried, temperature is 30 DEG C,
It is dry so that water activity in material after dry 0.2 hereinafter, to obtain the final product.
Embodiment 2
Functional health tea natural inhibitor extracting method, comprising the following steps:
(1) first by 200 portions of tealeaves through drying, crushing, powder is made, the ethyl alcohol of volume fraction 75% is added, at 70 DEG C
Stirring and leaching in water bath with thermostatic control, cooled and filtered, filtrate distillation and concentration recycle ethyl alcohol, obtain extract medicinal extract；Wherein, tealeaves and body
The molar ratio of the ethyl alcohol of fraction 75% is 1:10；
(2) the polyvinylidene fluoride ultrafiltration film circulating filtration that extracting solution medicinal extract via hole diameter is 60nm is concentrated, until solid content
Content is 12%, obtains catechin crude product；
(3) catechin crude product is sent into distilling apparatus, it is 500ml/ that catechin crude product, which enters distilling apparatus feed rate,
H, 85 DEG C of operation temperature；In distilling apparatus under the action of blade applicator, it is uniformly distributed in evaporator surface, blade applicator revolving speed is
400r/min, evaporator surface temperature are 103 DEG C, and vacuum degree 25mmHg, under vacuum, light-component gas is directly entered centre
Condenser condensation, flows into light component collector；Heavy constituent enters heavy constituent collector along evaporator tube inner wall, obtains catechin
Collection liquid；
(4) obtained catechin collection liquid is placed in 75% alcohol solvent of 2 times of volumes, solution gross mass is added
1.2% dispersion microballon, dispersion microballon is interior to be embedded with corn gelatinized starch according to mass ratio 1:5 by iron chloride, is dispersed micro-
The diameter of pearl is 0.5mm；Microwave Extraction is used again, and microwave power arranges 800W, Microwave Extraction 20s；Then obtained extraction is molten
Liquid filtering, gained filtrate get product through rotary evaporation in powdered.
Wherein, disperse microballon the preparation method comprises the following steps:
(1) aqueous suspension containing corn gelatinized starch is mixed under the conditions of 40 DEG C, embedding medium is made, wherein
The content of corn gelatinized starch is 10g/100mL；Corn gelatinized starch is heated to being gelatinized by former cornstarch, and heating temperature is
100 DEG C, heating time is made for 20min.
(2) embedding medium being mixed with iron chloride, and gained mixture is granulated and is dried, temperature is 60 DEG C,
It is dry so that water activity in material after dry 0.2 hereinafter, to obtain the final product.
Embodiment 3
Functional health tea natural inhibitor extracting method, comprising the following steps:
(1) first by 150 portions of tealeaves through drying, crushing, powder is made, the ethyl alcohol of volume fraction 70% is added, at 65 DEG C
Stirring and leaching in water bath with thermostatic control, cooled and filtered, filtrate distillation and concentration recycle ethyl alcohol, obtain extract medicinal extract；Wherein, tealeaves and body
The molar ratio of the ethyl alcohol of fraction 70% is 1:9；
(2) the polyvinylidene fluoride ultrafiltration film circulating filtration that extracting solution medicinal extract via hole diameter is 55nm is concentrated, until solid content
Content is 8%, obtains catechin crude product；
(3) catechin crude product is sent into distilling apparatus, it is 300ml/ that catechin crude product, which enters distilling apparatus feed rate,
H, 75 DEG C of operation temperature；In distilling apparatus under the action of blade applicator, it is uniformly distributed in evaporator surface, blade applicator revolving speed is
200r/min, evaporator surface temperature are 102 DEG C, and vacuum degree 15mmHg, under vacuum, light-component gas is directly entered centre
Condenser condensation, flows into light component collector；Heavy constituent enters heavy constituent collector along evaporator tube inner wall, obtains catechin
Collection liquid；
(4) obtained catechin collection liquid is placed in 70% alcohol solvent of 2 times of volumes, solution gross mass is added
0.8% dispersion microballon, dispersion microballon is interior to be embedded with corn gelatinized starch according to mass ratio 1:4 by iron chloride, is dispersed micro-
The diameter of pearl is 0.4mm；Microwave Extraction is used again, and microwave power arranges 600W, Microwave Extraction 12s；Then obtained extraction is molten
Liquid filtering, gained filtrate get product through rotary evaporation in powdered.
Wherein, disperse microballon the preparation method comprises the following steps:
(1) aqueous suspension containing corn gelatinized starch is mixed under the conditions of 40 DEG C, embedding medium is made, wherein
The content of corn gelatinized starch is 5g/100mL；Corn gelatinized starch is heated to being gelatinized by former cornstarch, heating temperature 90
DEG C, heating time is made for 10min.
(2) embedding medium being mixed with iron chloride, and gained mixture is granulated and is dried, temperature is 40 DEG C,
It is dry so that water activity in material after dry 0.2 hereinafter, to obtain the final product.
Comparative example 1
Functional health tea natural inhibitor extracting method, comprising the following steps:
(1) first by 100 portions of tealeaves through drying, crushing, powder is made, the ethyl alcohol of volume fraction 65% is added, at 60 DEG C
Stirring and leaching in water bath with thermostatic control, cooled and filtered, filtrate distillation and concentration recycle ethyl alcohol, obtain extract medicinal extract；Wherein, tealeaves and body
The molar ratio of the ethyl alcohol of fraction 65% is 1:8；
(2) the polyvinylidene fluoride ultrafiltration film circulating filtration that extracting solution medicinal extract via hole diameter is 50nm is concentrated, until solid content
Content is 6%, obtains catechin crude product；
(3) obtained catechin crude product is placed in 65% alcohol solvent of 2 times of volumes, solution gross mass 0.5% is added
Dispersion microballon, dispersion microballon in is embedded with corn gelatinized starch according to mass ratio 1:3 by iron chloride, disperse the straight of microballon
Diameter is 0.1mm；Microwave Extraction is used again, and microwave power arranges 500W, Microwave Extraction 10s；Then obtained extraction solution is filtered,
Gained filtrate gets product through rotary evaporation in powdered.
Wherein, disperse microballon the preparation method comprises the following steps:
(1) aqueous suspension containing corn gelatinized starch is mixed under the conditions of 40 DEG C, embedding medium is made, wherein
The content of corn gelatinized starch is 0.1g/100mL；Corn gelatinized starch is heated to being gelatinized by former cornstarch, and heating temperature is
80 DEG C, heating time is made for 5min.
(2) embedding medium being mixed with iron chloride, and gained mixture is granulated and is dried, temperature is 30 DEG C,
It is dry so that water activity in material after dry 0.2 hereinafter, to obtain the final product.
Comparative example 2
Functional health tea natural inhibitor extracting method, comprising the following steps:
(1) first by 100 portions of tealeaves through drying, crushing, powder is made, the ethyl alcohol of volume fraction 65% is added, at 60 DEG C
Stirring and leaching in water bath with thermostatic control, cooled and filtered, filtrate distillation and concentration recycle ethyl alcohol, obtain extract medicinal extract；Wherein, tealeaves and body
The molar ratio of the ethyl alcohol of fraction 65% is 1:8；
(2) the polyvinylidene fluoride ultrafiltration film circulating filtration that extracting solution medicinal extract via hole diameter is 50nm is concentrated, until solid content
Content is 6%, obtains catechin crude product；
(3) catechin crude product is sent into distilling apparatus, it is 200ml/ that catechin crude product, which enters distilling apparatus feed rate,
H, 65 DEG C of operation temperature；In distilling apparatus under the action of blade applicator, it is uniformly distributed in evaporator surface, blade applicator revolving speed is
100r/min, evaporator surface temperature is 100 DEG C, vacuum degree 0.5mmHg, under vacuum, during light-component gas is directly entered
Between condenser condense, flow into light component collector；Heavy constituent enters heavy constituent collector along evaporator tube inner wall, obtains catechu
Plain collection liquid；
(4) obtained catechin collection liquid is placed in 65% alcohol solvent of 2 times of volumes, Microwave Extraction, microwave power
Arrange 500W, Microwave Extraction 10s；Then by obtained extraction solution filter, gained filtrate through rotary evaporation in it is powdered to obtain the final product
Finished product.
Comparative example 3
Functional health tea natural inhibitor extracting method, comprising the following steps:
(1) after taking 100 parts of dry tealeaves to crush, with cold soaking 3 times at room temperature of 70% aqueous acetone solution, each 12h subtracts
Extract medicinal extract is obtained after pressure reclaim reagent, medicinal extract is suspended in water, is first extracted with ethyl acetate；
(2) column is filled after acetic acid ethyl ester extract being mixed sample according to weight ratio 1:30 with 60 mesh silica gel, petroleum ether is pressed with acetone
Volume ratio 9:1 elution, thin layer detection merge identical point and carry out that solvent is recovered under reduced pressure, obtain catechin crude product；
(3) proper amount of acetone is added in catechin crude product, heats, then be gradually added into acetone until crude product just dissolves；So
The ether of acetone volume 1/10 is added afterwards, places, precipitates crystal, filter to obtain catechin sterling.
Test method
The present invention is implemented according to " detection method of GB/T 8313-2018 Tea Polyphenols in Tea and catechin content "
The catechin that example 1-3 and comparative example 1-3 is prepared extracts purity detecting, obtains following result:
The different preparation method catechin DNA purities of table 1 compare
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Purity (%) | 93.9 | 93.7 | 93.3 | 86.8 | 81.3 | 83.2 |
As shown in Table 1, catechin purity made from embodiment method at least improves 7.5% compared with comparative example 1,2, extraction efficiency
It is significantly improved；Comparative example 1 is handled after obtaining catechin crude product without distillation, and obtained solution effective component is not yet in effect
Separation, therefore after Microwave Extraction, yield is not still high；The dispersion microballon prepared in comparative example 2 due to being not added with embedding, gained are molten
Liquid pH higher affects catechin stability, therefore it is low that catechin purity is made；And the conventional organic solvent that comparative example 3 uses
It extracts, catechin DNA purity compares that embodiment is low, simultaneously because the chemical solvent used is also easy to produce residual, therefore integrates and mentions
Take low efficiency.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. functional health tea natural inhibitor extracting method, it is characterised in that: the following steps are included:
(1) first by 100-200 portions of tealeaves through drying, crushing, powder is made, the ethyl alcohol of volume fraction 65-75% is added, in 60-
Stirring and leaching in 70 DEG C of water bath with thermostatic control, cooled and filtered, filtrate distillation and concentration recycle ethyl alcohol, obtain extract medicinal extract；Wherein, tea
The molar ratio of the ethyl alcohol of leaf and volume fraction 65-75% is 1:8-10；
(2) the polyvinylidene fluoride ultrafiltration film circulating filtration that extracting solution medicinal extract via hole diameter is 50-60nm is concentrated, until solid content contains
Amount is 6-12%, obtains catechin crude product；
(3) catechin crude product is sent into distilling apparatus, in distilling apparatus under the action of blade applicator, is uniformly distributed in evaporation
Device surface, under vacuum, light-component gas are directly entered interconderser condensation, flow into light component collector；Heavy constituent is along steaming
Hair device cylinder inboard wall enters heavy constituent collector, obtains catechin collection liquid；
(4) obtained catechin collection liquid is placed in the 65-75% alcohol solvent of 2 times of volumes, solution gross mass 0.5- is added
Then 1.2% dispersion microballon, Microwave Extraction filter obtained extraction solution, gained filtrate is through rotary evaporation in powdered
It gets product.
2. functional health tea natural inhibitor extracting method according to claim 1, it is characterised in that: the step
(3) in catechin crude product enter distilling apparatus feed rate be 200-500ml/h, 65-85 DEG C of operation temperature.
3. functional health tea natural inhibitor extracting method according to claim 1, it is characterised in that: the step
(3) blade applicator revolving speed is 100-400r/min in, and evaporator surface temperature is 100-103 DEG C, vacuum degree 0.5-25mmHg.
4. functional health tea natural inhibitor extracting method according to claim 1, it is characterised in that: the step
(4) it is formed by iron chloride through corn gelatinization starch embedding in dispersion microballon in, the diameter for dispersing microballon is 0.1-0.5mm.
5. functional health tea natural inhibitor extracting method according to claim 4, it is characterised in that: the dispersion
Microballon the preparation method comprises the following steps:
(1) aqueous suspension containing corn gelatinized starch is mixed under the conditions of 40 DEG C, embedding medium is made；
(2) embedding medium is mixed with iron chloride, and gained mixture is granulated and is dried, temperature is 30-60 DEG C, is done
The dry water activity made in material is 0.2 hereinafter, to obtain the final product.
6. functional health tea natural inhibitor extracting method according to claim 5, it is characterised in that: described to contain
The content of corn gelatinized starch is 0.1-10g/100mL in the aqueous suspension of corn gelatinized starch.
7. functional health tea natural inhibitor extracting method according to claim 6, it is characterised in that: the corn
Gelatinized starch is heated to gelatinization by former cornstarch and is made, and heating temperature is 80-100 DEG C, heating time 5-20min.
8. functional health tea natural inhibitor extracting method according to claim 1, it is characterised in that: the step
(4) microwave power arranges 500-800W, Microwave Extraction 10-20s in.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111317047A (en) * | 2020-04-15 | 2020-06-23 | 西安艾默农林生物技术有限公司 | Preparation method of samara tea beverage |
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| CN101591325A (en) * | 2008-05-26 | 2009-12-02 | 河南大学 | A kind of method of extracting catechin |
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| CN104381819A (en) * | 2014-11-11 | 2015-03-04 | 中南林业科技大学 | Method for preparing nutritional microspheres |
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| CN108164492A (en) * | 2018-02-11 | 2018-06-15 | 常德金德新材料科技股份有限公司 | A kind of catechin extracting method |
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|---|---|---|---|---|
| CN1683363A (en) * | 2005-03-11 | 2005-10-19 | 中山大学 | Method for extracting catechin from tea |
| CN101113147A (en) * | 2007-06-26 | 2008-01-30 | 朱江 | Method for tea by-product resource utilization |
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| CN103044201A (en) * | 2011-10-13 | 2013-04-17 | 熊峰 | Extraction process for solanesol |
| CN104381819A (en) * | 2014-11-11 | 2015-03-04 | 中南林业科技大学 | Method for preparing nutritional microspheres |
| CN106038343A (en) * | 2016-06-28 | 2016-10-26 | 广东轻工职业技术学院 | Extraction process of mulberrin and sun-screening agent containing mulberrin |
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| CN111317047A (en) * | 2020-04-15 | 2020-06-23 | 西安艾默农林生物技术有限公司 | Preparation method of samara tea beverage |
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