CN105410281A - Preparation method of composite tea composed of extracts of cyclocarya paliurus and gingko - Google Patents
Preparation method of composite tea composed of extracts of cyclocarya paliurus and gingko Download PDFInfo
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Abstract
The invention discloses a preparation method of composite tea composed of extracts of cyclocarya paliurus and gingko. The composite tea is composed of, by mass, 50% of a cyclocarya paliurus extract and 50% of a gingko extract. The preparation method is prepared through the following four steps: pre-treatment, ball milling-alcohol and alkali extraction, supersonic-microwave extraction, and mixing and packaging. According to the method, the mechanical chemical-alcohol and alkali extraction technology and the supersonic-microwave extraction technology are employed with addition of a soaking step with a 5% sodium carbonate alcohol solution and with addition of wear-resistant zirconium oxide balls for ball milling, so that the preparation method greatly reduces extraction time and extraction temperature and increases the content of effective components. The preparation method is used for preparing the extract composite tea and has excellent development prospect.
Description
Technical field
The present invention relates to a kind of preparation method of blue or green money willow ginkgo biloba extract compound tea, belong to tea technical field.
Background technology
Blue or green money willow, have another name called blue or green money Lee, mountain fiber crops willow, sweet tea tree etc., belonging to juglandaceae plant, is a kind of medicinal plant, effects such as having clearing away summerheat, step-down cardiac stimulant, improve immunity, promote longevity.This is owing to containing flavonoids, triterpenes, saponins, organic acid compound and the necessary inorganic elements of human body in blue or green money willow extract.Chinese patent CN104304582A discloses one " a kind of cyclocarya paliurus tea and preparation method thereof ", the method mainly by spraying with blue or green money willow as raw material extracts the medicinal extract obtained to before harvesting, increases the content of the flavones of blue or green money willow, alkaloid and polysaccharide isoreactivity composition; CN104585417A discloses one " a kind of blue or green money willow beverage and preparation technology thereof ", this beverage is by blue or green money willow buddings leaf 94-99%, momordica grosvenori sugar 2-3%, purified salt 0.15-0.25%, food additives 0.15-3%, flavoring essence 0.05-0.15% forms, and through weighing, washing, soak, decoct and dissolve, coarse filtration, constant volume, essence filter, high-temperature sterilization, inspection, filling obtained, it mainly solves by novel Qingqian Willow leaf water extraction and multi-filtering mode the problem that Qingqian willow health tea working substance amount is low, mouthfeel is poor.
Ginkgo, have another name called gingko, Gong Sunshu, duck bottom sediment, duck's foot tree, being high megaphanerophyte of falling leaves, is one of ancient Chinese medicinal plant.Especially, ginkgo leaf is current Clinical practice one of Chinese medicine more widely, this be due to ginkgo leaf there is the beneficial heart, promoting blood circulation and stopping pain, the health care of relievining asthma of astringing the lung, play an important role in the treatment of cardiovascular and cerebrovascular disease.In order to widen the range of application of ginkgo, people have carried out many-sided research to it, as Chinese patent CN102613339B discloses one " a kind of ginkgo biloba garlic Pu'er cooked tea composite particle beverage ", this beverage is prepared from by the raw material of following weight percents: ginkgo biloba p.e 1 ~ 5%, black garlic juice 1 ~ 4%, Pu-Er ripe tea extract 1 ~ 5%, gingko benevolence juice 80 ~ 85%, surplus is auxiliary material, it mainly achieves functional instant, improves absorptivity and the health-care efficacy of beverage; CN101449805B discloses one " a kind of method extracting ginkgo biloba extract from ginkgo leaf ", the method by mass ratio be mainly 1: 0.1 ~ 2 ginkgo leaf raw material and solid-phase reagent through ball milling, dissolve, filter, get supernatant, adjust pH, be separated, purifying obtains ginkgo biloba p.e.Simultaneously the method has environmental friendliness, product purity is high, dissolvent residual is few, easy to operate, with short production cycle, the advantages such as production cost is low.
In order to give full play to effect of blue or green money willow and ginkgo, people have done further research to them, as CN104286269A discloses one " a kind of Qingqian Willow leaf bealth-care instant tea and preparation method thereof ", this tea is made up of Qingqian Willow leaf 300 ~ 1000 parts, black tea 100 ~ 500 parts, ginkgo leaf 20 ~ 100 parts, potentilla discolor 20 ~ 100 parts, and through shaking green grass or young crops, complete, drying, the step such as pulverizing can obtain.Although this tea has the various health care functions such as hypoglycemic, lipopenicillinase, step-down, raising immunity, antifatigue, but the temperature that completes in its preparation process is 130 ~ 160 DEG C, high temperature can have a negative impact to raw material active component structure and physiologically active, thus affects composition effect in tea.And for example CN104042679A discloses one " a kind of hypoglycemic goods containing blue or green money willow composition ", and its composition is made up of Qingqian Willow leaf water extract, Qingqian Willow leaf alcohol extract, ginkgo leaf standard extract, flavones in mulberry leaves, Bitter Melon P.E, lutein and auxiliary material.Although these goods can improve the complication that diabetic's slight Hypertension causes effectively, but the active constituent content of its preparation method is not so desirable, use a large amount of ethanol in preparation process simultaneously, virtually increase the possibility of alcohol residue in extract.Therefore, the compound tea preparation method developing a kind of active constituent content high is very important.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, the invention provides a kind of preparation method of blue or green money willow ginkgo biloba extract compound tea.
The present invention for the taked technical scheme that solves the problem is:
A kind of blue or green money willow ginkgo biloba extract compound tea, it is made up of blue or green money willow extract and ginkgo biloba extract, and described blue or green money willow extract and the mass percent of ginkgo biloba extract are 50%:50%; Described blue or green money willow extract is Qingqian Willow leaf extract; Described ginkgo biloba extract is ginkgo biloba p.e; Described Qingqian Willow leaf extract and ginkgo biloba p.e adopt composite algorithm to extract; Described composite algorithm extracts the extraction method extraction comprising mechanochemical reaction, alcohol alkaline process, ultrasonic method and microwave method and combine.
The preparation method of described blue or green money willow ginkgo biloba extract compound tea comprises following technique: pretreatment, the extraction of ball milling-ol alkali, ultrasonic-Microwave Extraction and hybrid packed four steps:
(1) pretreatment: a) Qingqian Willow leaf and ginkgo leaf to be cleaned respectively, sterilization, is ground into powder, and crosses 60 ~ 80 mesh sieves, and at 60 DEG C dry 10 ~ 20 minutes, for subsequent use; B) 5% sodium acid carbonate ethanolic solution of secure ph=12, for subsequent use;
(2) ball milling-ol alkali extracts: a) under normal temperature, first by Qingqian Willow leaf powder: 5% sodium acid carbonate ethanolic solution: zirconia ball=1:1:2 weight ratio adds ball grinder, soak 15 ~ 25 minutes, then ball grinder to be fixed on rotating speed be ball milling 20 ~ 30 minutes on the ball mill of 200 ~ 300 turns; B) take out the rear mixture of grinding, add distilled water and dissolve twice, first time adds Qingqian Willow leaf opaque amount 9 times of distilled water, stirs 20 ~ 30 minutes, and second time adds Qingqian Willow leaf opaque amount 5 times of distilled water, stirs 10 ~ 15 minutes, filters, merging filtrate; C) on centrifuge filtrate being placed in 4000 ~ 5000 turns centrifugal 15 ~ 20 minutes, supernatant is got, with watery hydrochloric acid adjust ph to 4 ~ 6, concentrated, dry, grind, obtain Qingqian Willow leaf extract powder;
(3) ultrasonic-Microwave Extraction: a) by Qingqian Willow leaf extract powder 100 weight portion in selecting step (2), be 40 ~ 60kHz, microwave frequency 2400 ~ 2500MHz in supersonic frequency, extract twice at 40 ~ 50 DEG C, add the distilled water of 6 times of weight for the first time, extract 10 ~ 20 minutes, second time adds the distilled water of 3 times of weight, extract 5 ~ 10 minutes, filter, merging filtrate; B) on the centrifuge again filtrate being placed in 4000 ~ 5000 turns centrifugal 10 ~ 15 minutes, again filter, concentrated, dry, obtain Qingqian Willow leaf extract powder, for subsequent use;
(4) hybrid packed:
A) repetition (2), (3) step produce ginkgo leaf extract powder; B) first by the Qingqian Willow leaf extract powder obtained through step (3) and ginkgo leaf extract powder respectively spray-dried, pulverized 400 ~ 500 mesh sieves; Then be that Qingqian Willow leaf extract and the ginkgo leaf extract powder of 50%:50% fully mixes by mass percent, blue or green money willow ginkgo biloba extract compound tea can be obtained.
Present invention utilizes mechanochemistry-ol alkali extractive technique to extract, not only overcome the defect of single extracting method, and reduce extraction time, reduction Extracting temperature widely and improve active constituent content, thus reduce temperature to blue or green money willow and the impact of ginkgo active ingredient structure and activity, and then their effects can be given full play in compound tea, increase utilization rate and the absorptivity of compound tea.The thinking that mechanochemistry-ol alkali extracts is: Qingqian Willow leaf, ginkgo leaf and 5% sodium acid carbonate ethanolic solution ball milling are mixed, under the effect of ball milling, them are made each other chemical reaction to occur, form some easily water-soluble or compounds of alcohol, then through step Isolation and purification such as dissolving, filtrations, thus the active ingredient of blue or green money willow and ginkgo is obtained.In addition, the blue or green money willow after ball milling and ginkgo, particle diameter diminishes, and surface becomes large, increased activity, and active ingredient can discharge very soon, and the time decreased of extraction, active constituent content are improved.
In order to reduce extraction time further, improve active constituent content and purity, the present invention additionally uses ultrasonic-Microwave Extraction technology and extracts.This is because this extracting method is under the state of low-temperature atmosphere-pressure, makes full use of the high energy effect of ultrasonic cavitation and microwave, not only overcomes the deficiency of high temperature extraction and single extracting method, and saves extraction time.
The invention has the beneficial effects as follows:
1, Extracting temperature of the present invention is less than 60 DEG C, Qingqian Willow leaf powder: 5% sodium acid carbonate ethanolic solution=1:1, with the temperature 130 ~ 160 DEG C that completes in prior art, blue or green money willow: ethanol=1:10 compares, the present invention not only Extracting temperature is low, and ethanol consumption is few, reduce the possibility of alcohol residue in extract;
2, compared with traditional mechanical chemical technique, invention increases 5% sodium acid carbonate alcohol solution dipping step, thus make the cell of blue or green money willow and ginkgo, cell membrane fully absorb expand and be split up, and then be conducive to their active ingredient release, reduce extraction time, improve active constituent content; Meanwhile, add wear-resisting zirconia ball, make the particle diameter of blue or green money willow and ginkgo less, apparent activation energy is larger, is more conducive to the release of active ingredient, improves active constituent content.
Detailed description of the invention
Embodiment 1
A preparation method for blue or green money willow ginkgo biloba extract compound tea, comprises the following steps:
(1) pretreatment: a) Qingqian Willow leaf and ginkgo leaf to be cleaned respectively, sterilization, is ground into powder, and crosses 70 mesh sieves, and at 60 DEG C dry 15 minutes, for subsequent use; B) 5% sodium acid carbonate ethanolic solution of secure ph=12, for subsequent use;
(2) ball milling-ol alkali extracts: a) under normal temperature, first by Qingqian Willow leaf powder: 5% sodium acid carbonate ethanolic solution: zirconia ball=1:1:2 weight ratio adds ball grinder, soak 20 minutes, then ball grinder to be fixed on rotating speed be ball milling 25 minutes on the ball mill of 250 turns; B) take out the rear mixture of grinding, add distilled water and dissolve twice, first time adds Qingqian Willow leaf opaque amount 9 times of distilled water, stirs 25 minutes, and second time adds Qingqian Willow leaf opaque amount 5 times of distilled water, stirs 12 minutes, filters, merging filtrate; C) on centrifuge filtrate being placed in 4500 turns centrifugal 18 minutes, supernatant is got, by watery hydrochloric acid adjust ph to 5, concentrated, dry, grind, obtain Qingqian Willow leaf extract powder;
(3) ultrasonic-Microwave Extraction: a) by Qingqian Willow leaf extract powder 100 weight portion in selecting step (2), be 50kHz, microwave frequency 2450MHz in supersonic frequency, extract twice at 45 DEG C, add the distilled water of 6 times of weight for the first time, extract 15 minutes, second time adds the distilled water of 3 times of weight, extract 8 minutes, filter, merging filtrate; B) on the centrifuge again filtrate being placed in 4500 turns centrifugal 12 minutes, again filter, concentrated, dry, obtain Qingqian Willow leaf extract powder, for subsequent use;
(4) hybrid packed:
A) repetition (2), (3) step produce ginkgo leaf extract powder; B) first by the Qingqian Willow leaf extract powder obtained through step (3) and ginkgo leaf extract powder respectively spray-dried, pulverized 500 mesh sieves; Then be that Qingqian Willow leaf extract and the ginkgo leaf extract powder of 50%:50% fully mixes by mass percent, blue or green money willow ginkgo biloba extract compound tea can be obtained.
In blue or green money willow ginkgo biloba extract compound tea, the mensuration of flavones content adopts HPLC method to detect, and find after testing, flavones content is 32.56%.
Embodiment 2
A preparation method for blue or green money willow ginkgo biloba extract compound tea, comprises the following steps:
(1) pretreatment: a) Qingqian Willow leaf and ginkgo leaf to be cleaned respectively, sterilization, is ground into powder, and crosses 60 mesh sieves, and at 60 DEG C dry 10 minutes, for subsequent use; B) 5% sodium acid carbonate ethanolic solution of secure ph=12, for subsequent use;
(2) ball milling-ol alkali extracts: a) under normal temperature, first by Qingqian Willow leaf powder: 5% sodium acid carbonate ethanolic solution: zirconia ball=1:1:2 weight ratio adds ball grinder, soak 15 minutes, then ball grinder to be fixed on rotating speed be ball milling 20 minutes on the ball mill of 200 turns; B) take out the rear mixture of grinding, add distilled water and dissolve twice, first time adds Qingqian Willow leaf opaque amount 9 times of distilled water, stirs 20 minutes, and second time adds Qingqian Willow leaf opaque amount 5 times of distilled water, stirs 10 minutes, filters, merging filtrate; C) on centrifuge filtrate being placed in 4000 turns centrifugal 15 minutes, supernatant is got, by watery hydrochloric acid adjust ph to 4, concentrated, dry, grind, obtain Qingqian Willow leaf extract powder;
(3) ultrasonic-Microwave Extraction: a) by Qingqian Willow leaf extract powder 100 weight portion in selecting step (2), be 40kHz, microwave frequency 2400MHz in supersonic frequency, extract twice at 40 DEG C, add the distilled water of 6 times of weight for the first time, extract 10 minutes, second time adds the distilled water of 3 times of weight, extract 5 minutes, filter, merging filtrate; B) on the centrifuge again filtrate being placed in 4000 turns centrifugal 10 minutes, again filter, concentrated, dry, obtain Qingqian Willow leaf extract powder, for subsequent use;
(4) hybrid packed:
A) repetition (2), (3) step produce ginkgo leaf extract powder; B) first by the Qingqian Willow leaf extract powder obtained through step (3) and ginkgo leaf extract powder respectively spray-dried, pulverized 400 mesh sieves; Then be that Qingqian Willow leaf extract and the ginkgo leaf extract powder of 50%:50% fully mixes by mass percent, blue or green money willow ginkgo biloba extract compound tea can be obtained.
In blue or green money willow ginkgo biloba extract compound tea, the mensuration of flavones content adopts HPLC method to detect, and find after testing, flavones content is 30.85%.
Embodiment 3
A preparation method for blue or green money willow ginkgo biloba extract compound tea, comprises the following steps:
(1) pretreatment: a) Qingqian Willow leaf and ginkgo leaf to be cleaned respectively, sterilization, is ground into powder, and crosses 80 mesh sieves, and at 60 DEG C dry 20 minutes, for subsequent use; B) 5% sodium acid carbonate ethanolic solution of secure ph=12, for subsequent use;
(2) ball milling-ol alkali extracts: a) under normal temperature, first by Qingqian Willow leaf powder: 5% sodium acid carbonate ethanolic solution: zirconia ball=1:1:2 weight ratio adds ball grinder, soak 25 minutes, then ball grinder to be fixed on rotating speed be ball milling 30 minutes on the ball mill of 300 turns; B) take out the rear mixture of grinding, add distilled water and dissolve twice, first time adds Qingqian Willow leaf opaque amount 9 times of distilled water, stirs 30 minutes, and second time adds Qingqian Willow leaf opaque amount 5 times of distilled water, stirs 15 minutes, filters, merging filtrate; C) on centrifuge filtrate being placed in 5000 turns centrifugal 20 minutes, supernatant is got, by watery hydrochloric acid adjust ph to 6, concentrated, dry, grind, obtain Qingqian Willow leaf extract powder;
(3) ultrasonic-Microwave Extraction: a) by Qingqian Willow leaf extract powder 100 weight portion in selecting step (2), be 60kHz, microwave frequency 2500MHz in supersonic frequency, extract twice at 50 DEG C, add the distilled water of 6 times of weight for the first time, extract 20 minutes, second time adds the distilled water of 3 times of weight, extract 10 minutes, filter, merging filtrate; B) on the centrifuge again filtrate being placed in 5000 turns centrifugal 15 minutes, again filter, concentrated, dry, obtain Qingqian Willow leaf extract powder, for subsequent use;
(4) hybrid packed:
A) repetition (2), (3) step produce ginkgo leaf extract powder; B) first by the Qingqian Willow leaf extract powder obtained through step (3) and ginkgo leaf extract powder respectively spray-dried, pulverized 500 mesh sieves; Then be that Qingqian Willow leaf extract and the ginkgo leaf extract powder of 50%:50% fully mixes by mass percent, blue or green money willow ginkgo biloba extract compound tea can be obtained.
In blue or green money willow ginkgo biloba extract compound tea, the mensuration of flavones content adopts HPLC method to detect, and find after testing, flavones content is 31.28%.
The applicant is to the compound tea research experiment of the embodiment of the present invention 1 ~ 3, and concrete test method is as follows:
1, by body weight 15 ~ 20g and clinical symptoms are the mouse 150 of cold cough, heating (body temperature 38 ~ 39 DEG C), be divided into A group, B group and C group at random, often organize 50;
2, A group is taken compound tea, B group prepared by embodiment 1 and is taken compound tea prepared by embodiment 2 and C group and take compound tea prepared by embodiment 3;
3, instructions of taking: a day three times, each 10mg, takes 7 days;
4, temperature taking is carried out to the mouse taken 7 days, and record data.
Find after tested, mouse temperature has 37 lower than 38 DEG C: A group; B group has 33; C group has 35.If with mouse temperature lower than 38 DEG C for standard, then efficient 66.0%, the C group efficient 70.0% of efficient 74.0%, the B group of A group.As can be seen here, compound tea of the present invention is adopted to have heat-clearing effect.
In addition, the applicant also studies as follows to the compound tea of the embodiment of the present invention 1 ~ 3:
1, by body weight 15 ~ 20g and clinical symptoms are the mouse 150 of hypertension (systolic pressure 130 ~ 140mmHg), be divided into A group, B group and C group at random, often organize 50;
2, A group is taken compound tea, B group prepared by embodiment 1 and is taken compound tea prepared by embodiment 2 and C group and take compound tea prepared by embodiment 3;
3, instructions of taking: a day three times, each 10mg, takes 30 days;
4, blood pressure test is carried out to the mouse taken 30 days, and record data.
Find after tested, Mouse Blood forces down has 31 in 125mmHg:A group; B group has 28; C group has 29.If force down in 125mmHg for standard with Mouse Blood, then efficient 56.0%, the C group efficient 58.0% of efficient 62.0%, the B group of A group.As can be seen here, compound tea of the present invention is adopted to have blood pressure reduction effect.
Finally, the applicant also studies as follows to the embodiment of the present invention 1 compound tea:
1, by body weight 15 ~ 20g and clinical symptoms are the mouse 120 of hyperglycaemia (fasting blood-glucose 8.0 ~ 9.0mmol/L), be divided into A group, B group and C group at random, often organize 40;
2, A group take embodiment 1 prepare compound tea, B group takes Qingqian Willow leaf tea and C group takes ginkgo leaf tea;
3, instructions of taking: a day three times, each 10mg, takes 30 days;
4, blood sugar test is carried out to the mouse taken 30 days, and record data.
Find after tested, mouse blood sugar has 29 in 3.5 ~ 7.0mmol/L:A group; B group has 21; C group has 25.If with mouse blood sugar lower than at 3.5 ~ 7.0mmol/L for standard, then efficient 52.5%, the C group efficient 62.5% of efficient 72.5%, the B group of A group.As can be seen here, compound tea of the present invention is adopted to have effect of lowering blood sugar.
Certainly, just the preferred embodiments of the disclosure is described in detail above, not limits practical range of the present invention with this, and all equivalence changes done according to principle of the present invention, structure and structure, all should be covered by protection scope of the present invention.
Claims (2)
1. a preparation method for blue or green money willow ginkgo biloba extract compound tea, is characterized in that: it comprises following technique: pretreatment, the extraction of ball milling-ol alkali, ultrasonic-Microwave Extraction and hybrid packed four steps:
(1) pretreatment: a) Qingqian Willow leaf and ginkgo leaf to be cleaned respectively, sterilization, is ground into powder, and crosses 60 ~ 80 mesh sieves, and at 60 DEG C dry 10 ~ 20 minutes, for subsequent use; B) 5% sodium acid carbonate ethanolic solution of secure ph=12, for subsequent use;
(2) ball milling-ol alkali extracts: a) under normal temperature, first by Qingqian Willow leaf powder: 5% sodium acid carbonate ethanolic solution: zirconia ball=1:1:2 weight ratio adds ball grinder, soak 15 ~ 25 minutes, then ball grinder to be fixed on rotating speed be ball milling 20 ~ 30 minutes on the ball mill of 200 ~ 300 turns; B) take out the rear mixture of grinding, add distilled water and dissolve twice, first time adds Qingqian Willow leaf opaque amount 9 times of distilled water, stirs 20 ~ 30 minutes, and second time adds Qingqian Willow leaf opaque amount 5 times of distilled water, stirs 10 ~ 15 minutes, filters, merging filtrate; C) on centrifuge filtrate being placed in 4000 ~ 5000 turns centrifugal 15 ~ 20 minutes, supernatant is got, with watery hydrochloric acid adjust ph to 4 ~ 6, concentrated, dry, grind, obtain Qingqian Willow leaf extract powder;
(3) ultrasonic-Microwave Extraction: a) by Qingqian Willow leaf extract powder 100 weight portion in selecting step (2), be 40 ~ 60kHz, microwave frequency 2400 ~ 2500MHz in supersonic frequency, extract twice at 40 ~ 50 DEG C, add the distilled water of 6 times of weight for the first time, extract 10 ~ 20 minutes, second time adds the distilled water of 3 times of weight, extract 5 ~ 10 minutes, filter, merging filtrate; B) on the centrifuge again filtrate being placed in 4000 ~ 5000 turns centrifugal 10 ~ 15 minutes, again filter, concentrated, dry, obtain Qingqian Willow leaf extract powder, for subsequent use;
(4) hybrid packed:
A) repetition (2), (3) step produce ginkgo leaf extract powder; B) first by the Qingqian Willow leaf extract powder obtained through step (3) and ginkgo leaf extract powder respectively spray-dried, pulverized 400 ~ 500 mesh sieves; Then be that Qingqian Willow leaf extract and the ginkgo leaf extract powder of 50%:50% fully mixes by mass percent, blue or green money willow ginkgo biloba extract compound tea can be obtained.
2. the preparation method of blue or green money willow ginkgo biloba extract compound tea according to claim 1, is characterized in that: described ultrasonic-Microwave Extraction is 50kHz, microwave frequency 2450MHz in supersonic frequency, extracts at 45 DEG C.
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| CN107788183A (en) * | 2017-12-11 | 2018-03-13 | 钱秀红 | A kind of leaf tea powder of three high drop seven and preparation method thereof |
| CN108497121A (en) * | 2018-04-19 | 2018-09-07 | 武汉跃莱健康产业有限公司 | One kind has effects that improve metabolic syndrome effect tea and preparation method thereof |
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| CN102961412A (en) * | 2012-10-10 | 2013-03-13 | 中国科学院过程工程研究所 | Ball-milling coupling extraction integrated process for strengthening natural plant active ingredient extraction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107788183A (en) * | 2017-12-11 | 2018-03-13 | 钱秀红 | A kind of leaf tea powder of three high drop seven and preparation method thereof |
| CN108497121A (en) * | 2018-04-19 | 2018-09-07 | 武汉跃莱健康产业有限公司 | One kind has effects that improve metabolic syndrome effect tea and preparation method thereof |
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Application publication date: 20160323 |