CN1097411A - A kind of production method of decaffeinated tea polyphenol - Google Patents
A kind of production method of decaffeinated tea polyphenol Download PDFInfo
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- CN1097411A CN1097411A CN 94105114 CN94105114A CN1097411A CN 1097411 A CN1097411 A CN 1097411A CN 94105114 CN94105114 CN 94105114 CN 94105114 A CN94105114 A CN 94105114A CN 1097411 A CN1097411 A CN 1097411A
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- Prior art keywords
- tea
- polyphenol
- calcium
- zinc
- acetate
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 150000008442 polyphenolic compounds Chemical class 0.000 title claims description 11
- 235000013824 polyphenols Nutrition 0.000 title claims description 11
- 235000015092 herbal tea Nutrition 0.000 title claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- RYYVLZVUVIJVGH-UHFFFAOYSA-N trimethylxanthine Natural products CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 claims abstract description 17
- 244000269722 Thea sinensis Species 0.000 claims abstract description 16
- 238000000605 extraction Methods 0.000 claims abstract description 15
- 238000001556 precipitation Methods 0.000 claims abstract description 13
- 238000009835 boiling Methods 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 9
- 239000003960 organic solvent Substances 0.000 claims abstract description 8
- 239000000284 extract Substances 0.000 claims abstract description 6
- 235000009569 green tea Nutrition 0.000 claims abstract description 5
- 231100000252 nontoxic Toxicity 0.000 claims abstract description 4
- 230000003000 nontoxic effect Effects 0.000 claims abstract description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 13
- 239000011701 zinc Substances 0.000 claims description 13
- 229910052725 zinc Inorganic materials 0.000 claims description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 12
- 229910052791 calcium Inorganic materials 0.000 claims description 12
- 235000013616 tea Nutrition 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000011592 zinc chloride Substances 0.000 claims description 7
- 235000005074 zinc chloride Nutrition 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 6
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Substances [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 claims description 4
- NMJJFJNHVMGPGM-UHFFFAOYSA-N butyl formate Chemical compound CCCCOC=O NMJJFJNHVMGPGM-UHFFFAOYSA-N 0.000 claims description 4
- 229960001948 caffeine Drugs 0.000 claims description 4
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 claims description 4
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 4
- 229940090181 propyl acetate Drugs 0.000 claims description 4
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 150000007522 mineralic acids Chemical class 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- -1 filter Substances 0.000 claims description 2
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 claims description 2
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 claims description 2
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 claims description 2
- 229940011051 isopropyl acetate Drugs 0.000 claims description 2
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 claims description 2
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- AVMSWPWPYJVYKY-UHFFFAOYSA-N 2-Methylpropyl formate Chemical class CC(C)COC=O AVMSWPWPYJVYKY-UHFFFAOYSA-N 0.000 claims 1
- 239000005909 Kieselgur Substances 0.000 claims 1
- OXGYXNZAWOVELU-UHFFFAOYSA-K [Cl-].[Ca+2].[Cl+].[Cl-].[Cl-] Chemical compound [Cl-].[Ca+2].[Cl+].[Cl-].[Cl-] OXGYXNZAWOVELU-UHFFFAOYSA-K 0.000 claims 1
- 230000000536 complexating effect Effects 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 238000003809 water extraction Methods 0.000 claims 1
- LCCDINSFSOALJK-UHFFFAOYSA-N 1,3,4-trimethylpurine-2,6-dione Chemical compound O=C1N(C)C(=O)N(C)C2(C)N=CN=C21 LCCDINSFSOALJK-UHFFFAOYSA-N 0.000 abstract description 9
- 244000062793 Sorghum vulgare Species 0.000 abstract description 6
- 235000019713 millet Nutrition 0.000 abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 5
- 239000001110 calcium chloride Substances 0.000 description 5
- 229910001628 calcium chloride Inorganic materials 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000001291 vacuum drying Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 229960001763 zinc sulfate Drugs 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 208000004434 Calcinosis Diseases 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003810 ethyl acetate extraction Methods 0.000 description 1
- OHZCFWMJMWFNFP-UHFFFAOYSA-L ferrous tartrate Chemical compound [Fe+2].[O-]C(=O)C(O)C(O)C([O-])=O OHZCFWMJMWFNFP-UHFFFAOYSA-L 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000004223 radioprotective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000002390 rotary evaporation Methods 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Medicines Containing Plant Substances (AREA)
- Compounds Of Unknown Constitution (AREA)
- Tea And Coffee (AREA)
Abstract
From broken green tea, extract the production method of the tea-polyphenol of caffein-free, it is characterized in that using useful or harmless to health, water-soluble big ionizable metal salt precipitation tea-polyphenol, make its with millet paste in trimethyl-xanthine separate, the adsorbed a small amount of trimethyl-xanthine of tea-polyphenol salt is removed with gac, diatomite adsorbant again, and last extraction solvent still can be selected tea-polyphenol solubleness big except that ethyl acetate, this solubleness in water is little, simultaneously high, the not nontoxic organic solvent of boiling point.The invention provides a kind of Production Flow Chart safety, less investment, cost is low, extracts the high Preparing Tea-polyphenol technology of collection, is applicable to suitability for industrialized production.
Description
The invention belongs to tea Processing method, especially belong to the production method of from tealeaves, extracting the tea-polyphenol of caffein-free.This tea-polyphenol not only can be used as new food additive, and the antioxygen that is used for grease and oleaginous food and makeup is fresh-keeping, and pharmaceutically also is being the natural drug that a class utmost point has exploitation to be worth.It has the effect of very strong removing free radical, has multiple physiological actions such as suppressing cell mutation and canceration, anti-oxidant, step-down, radioprotective.
Extract high-content tea-polyphenol (more than 90%) at present both at home and abroad, following several class methods are roughly arranged: one, broken tea concentrates with water-containing organic solvent (methyl alcohol, ethanol, acetone etc.) lixiviate, with ether and ethyl acetate continuous extraction, evaporation drying etc.As day the disclosure specially permit clear 59-45385(1984), clear 61-13085(1986), CN 1034947A(1988).Two, make tea-polyphenol complex compound sediment in the millet paste with calcium hydroxide, separate with water layer, tea-polyphenol calcium changes molten back spraying drying with acid, or with ethyl acetate extraction, concentrating under reduced pressure, vacuum-drying.As CN 1043730A(1988), CN 1056679A(1990).Three, the lixiviate of broken tea boiling water, filtrate is adsorbed with polymer macroporous resin or gel, and organic solvent (methyl alcohol, ethanol or acetone etc.) wash-out concentrates and reclaims solvent, and the tea-polyphenol crude product is re-refined.As day the disclosure specially permit clear 65-311474(1990), clear 66-14572(1991), CN 1067359A(1991), CN1076926A(1992).
More than several class methods though characteristics are respectively arranged, its relative merits and limitation are arranged in application.Water-containing organic solvent extracts, its complex process, and required equipment is more, and energy consumption is big, contains trimethyl-xanthine in the product.Though calcium hydroxide precipitator method technology is simple,, can only say theoretical meaning because calcium hydroxide solubleness in water is very little.
The objective of the invention is to overcome the weak point that prior art exists, the production method of the tea-polyphenol of a kind of Production Flow Chart safety, cost is low, extraction yield is high caffein-free is provided, be applicable to suitability for industrialized production.
Content of the present invention is achieved through the following technical solutions:
With broken green tea is raw material, by the boiling water lixiviate, separate, purifying and drying and other steps, wherein: the boiling water vat liquor after filtering, add calcium chloride or complex-precipitation agent such as zinc chloride or zinc sulfate in the filtrate, add sig water after cooling, make PH reach 6.5～10, form tea-polyphenol calcium or tea-polyphenol zinc precipitation, filter, make that most of trimethyl-xanthine separates with precipitation in the millet paste, precipitate and use inorganic acid solution, handle with activated carbon-diatomite adsorbant again, refilter, remove residual trimethyl-xanthine, filtrate is with tea-polyphenol in the extraction solvent extraction water such as ethyl acetate, dry ester layer, reduction vaporization reclaims extraction solvent, and vacuum-drying promptly gets the tea-polyphenol finished product of caffein-free.
Calcium chloride or zinc chloride as the complex-precipitation agent in the above-mentioned steps can be used saturated solution, also can add solid calcium chloride or zinc chloride.
Alkali lye will be after solution cooling, and adds under stirring fast, avoids local alkalescence strong and cause the oxidation of tea-polyphenol calcium or tea-polyphenol zinc.
As dissolving tea-polyphenol calcium or the sedimentary mineral acid of tea-polyphenol zinc can be dilute hydrochloric acid or dilute sulphuric acid (Chinese Pharmacopoeia standard).
Sorbent material can be selected activated carbon (20-50 order)-diatomite for use, further removing the trimethyl-xanthine of being brought into by the absorption of tea-polyphenol calcium tea-polyphenol or zinc precipitation, does not influence when using when containing 1% trimethyl-xanthine in the tea-polyphenol, can save this step of absorption.
Extraction solvent also can be selected propyl acetate, isopropyl acetate, n-butyl acetate for use, isobutyl acetate, ethyl propionate, butyl formate, tetryl formates etc. are big to tea-polyphenol solubleness, and itself solubleness in water is little, simultaneously high, the not nontoxic again organic solvent of boiling point.
The inventive method has following advantage than prior art:
1, applying high density calcium ion (CaCl
2) or zine ion (ZnCl
2Or ZnSO
4), the consumption of water is significantly reduced, the consumption that helps improving the tea-polyphenol yield and reduce organic extractant reduces production costs.
2, very low with the caffeine content in the tea-polyphenol of present method production, (＜0.5%).
3, produce tea-polyphenol with present method, production cost is low, and industrial applicibility is strong, and Production Flow Chart safety.
The present invention will be further described in conjunction with attached embodiment.
Embodiment 1:
Get the 200 broken green tea of gram (or tea dust, tea powder) and add 8-10 times of boiling water, stir the extraction secondary, each 20-40 minute, press filtration merges the secondary vat liquor, adds the full solution 14ml(that closes of calcium chloride and contains calcium chloride 11 grams), cooling, stir (avoiding local alkalescence to cause the oxidation of tea-polyphenol calcium or tea-polyphenol zinc by force) fast and with 3N sodium hydroxide millet paste PH is transferred to 6.5-10 down, make tea-polyphenol calcium or tea-polyphenol zinc precipitation fully, tell precipitation (the recyclable caffeine of clear liquid) with whizzer.Put into dilute hydrochloric acid (Chinese Pharmacopoeia standard) in the precipitation, it is dissolved fully, add activated carbon (20-50 order), diatomite mixed adsorbent 2-4 restrains (weight ratio 1: 1), further remove the trimethyl-xanthine of bringing into by tea-polyphenol calcium or tea-polyphenol zinc co-precipitation absorption.Filtering separation, (ethyl acetate has/100 milliliters of suitable solubleness 9.7 grams to water in water with the propyl acetate extraction, 18 ℃), ester layer desiccant dehydration, the decompression rotary evaporation reclaims extraction solvent, finished product vacuum-drying, can get faint yellow coarse-grain attitude tea-polyphenol 12-16 gram, yield 6-8%, the Polyphenols total amount is more than 95%.
Embodiment 2:
Get 200 gram green tea ends and add 8-10 times of boiling water, stirring and leaching secondary, each 20 minutes, press filtration merges secondary raffinate, adds zinc chloride strong solution 13ml(and contains zinc chloride 13.5 grams), cooling is stirred fast down and with 10% ammonium hydroxide millet paste PH is transferred to 7-10, makes tea-polyphenol zinc precipitation fully.Below handle similar embodiment 1, but replace propyl acetate to make extraction tea-polyphenol solvent with ethyl acetate, tea-polyphenol yield 6-8%, the tea-leaf producing area difference, yield has height slightly.Polyphenol content (records by international tartrate iron colorimetry) more than 95%.
Replace zinc chloride to obtain similar results with zinc sulfate.
Manganous sulfate (Mn
Lv) and sal epsom (Mg
Lv) add dilute alkali with millet paste in complex compound solubleness in water of forming of tea-polyphenol bigger, be not suitable for and from tealeaves, extract tea-polyphenol.
Embodiment 3:
With methylene dichloride or chloroform extraction a small amount of trimethyl-xanthine that adsorbs in tea-polyphenol calcium or the tea-polyphenol zinc is removed tea-polyphenol zinc precipitation among tea-polyphenol calcium deposit among the embodiment 1 or the embodiment 2, filtered and tell methylene dichloride or chloroform.Tea-polyphenol calcium or tea-polyphenol zinc precipitation are with diluted hydrochloric acid dissolution, big with ethyl propionate or n-butyl acetate etc. to tea-polyphenol solubleness, this solubleness in water is little, high, the not nontoxic organic solvent extraction of while boiling point, drying and dehydrating, the decompression thin film evaporation reclaims organic solvent, and finished product vacuum-drying also can get the tea-polyphenol of caffein-free, and yield and product effective component content are the same.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105114 CN1097411A (en) | 1994-05-19 | 1994-05-19 | A kind of production method of decaffeinated tea polyphenol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105114 CN1097411A (en) | 1994-05-19 | 1994-05-19 | A kind of production method of decaffeinated tea polyphenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1097411A true CN1097411A (en) | 1995-01-18 |
Family
ID=5031916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94105114 Pending CN1097411A (en) | 1994-05-19 | 1994-05-19 | A kind of production method of decaffeinated tea polyphenol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1097411A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996028178A1 (en) * | 1995-03-14 | 1996-09-19 | Indena S.P.A. | Polyphenol fractions of tea, the use thereof and formulations containing them |
| CN100404523C (en) * | 2006-02-21 | 2008-07-23 | 张守政 | Method for extracting tea polyphenols, theanine, tea polysaccharides and tea pigments from tea leaves |
| CN102225122A (en) * | 2011-06-09 | 2011-10-26 | 四川中测科技投资有限公司 | Caffeine-free tea polyphenol and preparation method thereof |
| CN102503964A (en) * | 2011-11-11 | 2012-06-20 | 河南大学 | Preparation process for tea polyphenol metal complex |
| CN102603498A (en) * | 2012-02-08 | 2012-07-25 | 厦门大学 | Method for extracting phenolic compounds from biological oil |
| CN102771614A (en) * | 2012-08-10 | 2012-11-14 | 福建农林大学 | Processing technology of black tea with low caffeine |
| CN104286911A (en) * | 2014-10-02 | 2015-01-21 | 滕元妹 | Preparation method of Miao health-preservation oil-sealed salted meat |
| CN105503967A (en) * | 2016-01-04 | 2016-04-20 | 广州孺子牛生物科技有限公司 | Method for directly synthesizing tea polyphenol metal complex with tea as raw material |
| CN108516995A (en) * | 2018-04-27 | 2018-09-11 | 湖南口味王集团有限责任公司 | A kind of method of purification of betel nut polyphenol |
| CN108706675A (en) * | 2018-05-31 | 2018-10-26 | 华南理工大学 | A method of it substituting DIPE and coal chemical industrial waste water containing phenol is extracted |
| CN110354816A (en) * | 2019-05-31 | 2019-10-22 | 中国农业科学院茶叶研究所 | A kind of chitosan/oxidized graphene/silicon diatomaceous earth composite material and preparation method, application |
| CN115868559A (en) * | 2022-12-14 | 2023-03-31 | 湖北神武绿源农业科技有限公司 | Preparation method of instant green tea powder |
-
1994
- 1994-05-19 CN CN 94105114 patent/CN1097411A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5989557A (en) * | 1995-03-14 | 1999-11-23 | Indena S.P.A. | Process for extracting polyphenol fractions of tea and compositions produced therewith |
| US6096359A (en) * | 1995-03-14 | 2000-08-01 | Indena S.P.A. | Polyphenol fractions of tea, the use thereof and formulations containing them |
| RU2185070C2 (en) * | 1995-03-14 | 2002-07-20 | Индена С.П.А. | Tea polyphenolic fractions, their use and compositions comprising thereof |
| WO1996028178A1 (en) * | 1995-03-14 | 1996-09-19 | Indena S.P.A. | Polyphenol fractions of tea, the use thereof and formulations containing them |
| CN100404523C (en) * | 2006-02-21 | 2008-07-23 | 张守政 | Method for extracting tea polyphenols, theanine, tea polysaccharides and tea pigments from tea leaves |
| CN102225122A (en) * | 2011-06-09 | 2011-10-26 | 四川中测科技投资有限公司 | Caffeine-free tea polyphenol and preparation method thereof |
| CN102503964B (en) * | 2011-11-11 | 2015-04-22 | 河南大学 | Preparation process for tea polyphenol metal complex |
| CN102503964A (en) * | 2011-11-11 | 2012-06-20 | 河南大学 | Preparation process for tea polyphenol metal complex |
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| CN110354816B (en) * | 2019-05-31 | 2022-05-27 | 中国农业科学院茶叶研究所 | A kind of chitosan/graphene oxide/diatomite composite material and preparation method and application thereof |
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