Process and device for the preparation of a plant extract beverage

Abstract

The present application relates to the technical field of plant extract beverage preparation, in particular to a preparation process and device for a plant extract beverage, the preparation process comprising the following steps: selecting, removing impurities, removing dust and crushing one of tea, American ginseng, dendrobium, astragalus, wolfberry fruit, cistanche, angelica and polygonatum; adding water until the mixture is soaked through to obtain a material-water mixture; extracting the material-water mixture with three times of ethanol of a specified concentration; combining the three times of extraction liquid and conveying the combined extraction liquid into a reduced-pressure concentration tank for reduced-pressure concentration treatment, then eluting the extraction liquid with a macroporous adsorption resin column to obtain a traditional Chinese medicine extract, drying the traditional Chinese medicine extract, mixing the dried traditional Chinese medicine extract with resistant dextrin, stevioside, citric acid, vitamins, beta-cyclodextrin and other auxiliary materials in a mixing machine, sterilizing the mixture, and packaging the sterilized mixture to obtain the plant extract beverage; and the preparation device comprises an extraction device, a reduced-pressure concentration tank, a conveying control device and an adsorption and washing device. The present application adopts an ethanol gradient extraction method to comprehensively extract active ingredients in medicinal materials, and the prepared plant extract beverage is convenient to store, carry and drink.

Description

Technical Field

[0001] This invention relates to the field of plant extract beverage technology, specifically to the preparation process and apparatus for plant extract beverages. Background Technology

[0002] The preparation of plant extract beverages requires multiple treatments to remove residues and residual liquids from the extract to ensure it meets production requirements. However, existing plant extract beverage preparation devices cannot perform smooth and thorough filtration, rinsing, and adsorption purification of the extract. Furthermore, the flow rate cannot be controlled and adjusted to varying degrees during the process, resulting in poor adsorption purification effects. Additionally, rinsing the extract treated by macroporous adsorption resin columns is inconvenient. Therefore, a plant extract beverage preparation device is needed to solve the aforementioned problems. Summary of the Invention

[0003] The purpose of this invention is to provide a process and apparatus for preparing plant extract beverages to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] The preparation process and apparatus for plant extract beverages include an extraction tank, a vacuum concentration tank, a conveying control device, and an adsorption rinsing device. The conveying control device is fixedly connected between the vacuum concentration tank and the adsorption rinsing device. The conveying control device includes a conveying device and a flow rate control unit, and the flow rate control unit is disposed on the conveying device.

[0006] The conveying device includes a main conveying pipe, a first diversion conveying pipe, a connecting frame, a fixed support frame, a second diversion conveying pipe, and a third diversion conveying pipe. The first diversion conveying pipe and the second diversion conveying pipe are fixedly connected to both ends of the main conveying pipe, and the third diversion conveying pipe is fixedly connected to the middle of the end of the main conveying pipe. The first diversion conveying pipe and the second diversion conveying pipe are distributed on both sides of the third diversion conveying pipe. The connecting frame is fixedly connected to the ends of the first diversion conveying pipe, the second diversion conveying pipe, and the third diversion conveying pipe. The fixed support frame is fixedly connected to the upper end of the main conveying pipe.

[0007] The flow rate control unit includes a first adjusting plate, a motor, a first sliding adjusting toothed plate, a first adjusting gear, a synchronous rotating rod, a limiting plate, an auxiliary adjusting device, and a drive connecting column. The first sliding adjusting toothed plate is uniformly slidably engaged with the limiting plate. The synchronous rotating rod is fixedly connected between the first adjusting gears. The motor is fixedly connected to the outer end of the first adjusting gear located at the outer end. The drive connecting column is fixedly connected to the inner end of the first adjusting gear located in the middle. The auxiliary adjusting device is disposed between the first adjusting gears in the middle. The first adjusting plate is fixedly connected to the bottom end of the first sliding adjusting toothed plate, and the first adjusting gear and the first sliding adjusting toothed plate are meshed together.

[0008] The auxiliary adjustment device includes a second adjustment plate, a telescopic drive column, a fixed adjustment plate, a fixed limit column, a first hydraulic cylinder, a second sliding adjustment tooth plate, and a second adjustment gear. The fixed limit column is fixedly connected to the middle of both ends of the second adjustment gear. The telescopic drive column is slidably engaged inside the fixed limit column. The first hydraulic cylinder is uniformly fixedly installed on the fixed limit column. The fixed adjustment plate is uniformly fixedly installed on the telescopic drive column, and the front end of the first hydraulic cylinder is fixedly connected to the fixed adjustment plate. A second sliding adjustment tooth plate is installed on the inner side of the second adjustment gear, and the second sliding adjustment tooth plate is meshed with the second adjustment gear. The second adjustment plate is fixedly connected to the bottom end of the second sliding adjustment tooth plate.

[0009] The adsorption rinsing device includes a spray cleaning disc, a macroporous adsorption resin column, a water pump, a treatment tank, a discharge pipe, a sealing baffle, and a second hydraulic cylinder. The discharge pipe is fixedly connected to the bottom outer end of the treatment tank, and the sealing baffle is slidably engaged with the discharge pipe. The second hydraulic cylinder is symmetrically fixedly installed on the treatment tank, and the bottom end of the second hydraulic cylinder is fixedly connected to the upper end of the sealing baffle. There are four water pumps, which are evenly fixedly installed on the upper end of the treatment tank. The macroporous adsorption resin column is fixedly connected to the upper end of the water pump, and the spray cleaning disc is located on the upper end of the macroporous adsorption resin column.

[0010] Preferably, the connecting frame is in communication with the interior of the processing box.

[0011] Preferably, the limiting plate is fixedly connected to the fixed support frame, and the synchronous rotating rod is rotatably engaged on the fixed support frame.

[0012] Preferably, the first adjusting plate is slidably engaged inside the first and second diversion conveying pipes, and the second adjusting plate is slidably engaged inside the third diversion conveying pipe.

[0013] Preferably, the telescopic drive column is adapted to the groove in the middle of the drive connecting column.

[0014] Preferably, the telescopic drive column, the fixed limiting column, and the drive connecting column are all arranged in a hexagonal prism shape.

[0015] Preferably, a connecting pipe is fixedly installed between the bottoms of the macroporous adsorption resin columns.

[0016] Preferably, a guide buffer plate is fixedly installed at the bottom of the outer end of the discharge pipe.

[0017] The preparation process of plant extract beverages includes the following steps:

[0018] a. Select one of the following: tea leaves, American ginseng, dendrobium, astragalus, wolfberry, cistanche, angelica, and polygonatum. Remove impurities, dust, and crush them. Add 0.5 to 2 times the volume of water until thoroughly soaked to obtain a mixture of materials and water.

[0019] b. Add appropriate amounts of 95% ethanol and purified water to the material-water mixture in step a, adjusting the ethanol concentration in the system to 65-85%, with a volume increase of 7-9. After the first extraction, filter. Add an ethanol solution prepared with 95% ethanol and purified water to the obtained filter residue, with an ethanol concentration of 55-75%, with a volume increase of 6-8. After the second extraction, filter. Add an ethanol solution prepared with 95% ethanol and purified water to the obtained filter residue, with an ethanol concentration of 45-65%, with a volume increase of 6-8. After the third extraction, filter to obtain the extract. The ethanol concentration decreases progressively during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a medicinal layer sandwiched between them. The upper filter cloth has a pore size of 0.3 mm, the lower filter cloth has a pore size of 0.15 mm, and the medicinal layer is made by pulverizing the corresponding medicinal materials and laying them flat inside a PP non-woven filter bag.

[0020] c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank for vacuum concentration. Then transfer them to the processing tank and pump them upwards. They are then adsorbed by a macroporous adsorption resin column with a flow rate controlled at 5-10 BV / h to obtain the Chinese herbal extract. The adsorption residue is then discarded.

[0021] d. Dry the Chinese herbal extract, then mix it thoroughly with resistant dextrin, steviol glycosides, citric acid, vitamins, and β-cyclodextrin in a mixer, then sterilize and package it to obtain the plant extract beverage.

[0022] 11. Preferably, the raw materials in step d include, by weight, 4-6 parts of resistant dextrin, 0.01-0.05 parts of steviol glycosides, 0.2-0.4 parts of citric acid, 0.02-0.04 parts of vitamins, and 0.001-0.003 parts of β-cyclodextrin.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] I. By setting up a conveying control device, the present invention can conveniently and accurately control the flow rate of the concentrated extract delivered to the adsorption rinsing device by utilizing the flow rate control unit and auxiliary adjustment device therein, so that the macroporous adsorption resin column can better adsorb and treat the concentrated extract.

[0025] Second, by setting up an adsorption rinsing device, the present invention utilizes four macroporous adsorption resin columns to better adsorb and treat liquids, and the macroporous adsorption resin columns can be easily rinsed by a spray cleaning plate, so that the cleaning liquid and adsorption residue can remain in the treatment tank for easy separation and discharge.

[0026] Third, the present invention delivers liquid by setting up three channels: a first diversion delivery pipe, a third diversion delivery pipe, and a fixed support frame, and these channels can be used selectively, making flow rate control precise and convenient.

[0027] Fourth, this invention employs an ethanol concentration gradient extraction method, which can extract both water-soluble active ingredients from medicinal materials and water-insoluble components, and refine them into plant extract beverages. At the same time, it greatly improves the intake and utilization of effective components in medicinal materials, and the prepared plant extract beverages are convenient to store, carry and drink. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0030] Figure 2 This is a side view of the main body of the invention;

[0031] Figure 3 This is a schematic diagram of the conveying control device of the present invention;

[0032] Figure 4 This is a side view of the conveying control device of the present invention;

[0033] Figure 5 This is a schematic diagram of the conveying device of the present invention;

[0034] Figure 6 This is a schematic diagram of the flow rate control unit of the present invention;

[0035] Figure 7 This is a schematic diagram of the auxiliary adjustment device of the present invention;

[0036] Figure 8 This is a schematic diagram of the adsorption rinsing device of the present invention;

[0037] Figure 9 This is a side view of the adsorption rinsing device of the present invention;

[0038] Figure 10 This is a schematic diagram of the second embodiment of the adsorption rinsing device of the present invention.

[0039] In the diagram: 1-Pressure reducing and concentrating tank, 2-Transportation control device, 3-Adsorption and rinsing device, 4-Transportation device, 5-Flow rate control unit, 6-Main delivery pipe, 7-First diversion delivery pipe, 8-Connecting frame, 9-Fixed support frame, 10-Second diversion delivery pipe, 11-Third diversion delivery pipe, 12-First adjusting plate, 13-Motor, 14-First sliding adjusting gear plate, 15-First adjusting gear, 16-Synchronous rotation rod, 17-Limiting plate, 18-Auxiliary Adjustment device, 19-drive connecting column, 20-second adjustment insert plate, 21-telescopic drive column, 22-fixed adjustment plate, 23-fixed limit column, 24-first hydraulic cylinder, 25-second sliding adjustment toothed plate, 26-second adjustment gear, 27-spraying cleaning disc, 28-macroporous adsorption resin column, 29-water pump, 30-connecting pipe, 31-treatment box, 32-discharge pipe, 33-sealing baffle, 35-second hydraulic cylinder, 36-guide buffer plate. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be further described below with reference to the accompanying drawings.

[0041] Example 1

[0042] The preparation process of plant extract beverages includes the following steps:

[0043] a. Select 120 portions of tea leaves, remove impurities and dust, crush them, add 0.5 times their volume of water until they are thoroughly soaked, and obtain a mixture of tea leaves and water.

[0044] b. Add 95% ethanol and purified water to the material-water mixture in step a, adjusting the ethanol concentration in the system to 85% (ethanol volume 8 times). Perform the first extraction and filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 75% (ethanol volume 7 times). Perform the second extraction and filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 65% (ethanol volume 7 times). Perform the third extraction and filter to obtain the extract. The ethanol concentration decreases progressively during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a drug compartment sandwiched between them. The upper filter cloth has a pore size of 0.3 mm, the lower filter cloth has a pore size of 0.15 mm, and the drug compartment is made by flatly laying crushed tea leaves inside a PP non-woven filter bag.

[0045] c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank for vacuum concentration. Then transfer them to the processing tank and pump them upwards. They are then adsorbed by a macroporous adsorption resin column with a flow rate controlled at 5 BV / h to obtain the Chinese herbal extract. The adsorption residue is then discarded.

[0046] d. Dry the tea extract, mix it thoroughly with resistant dextrin and β-cyclodextrin in a mixer, then sterilize, dry, and package to obtain the plant extract beverage.

[0047] In step d, the raw materials, by weight, include: 4 parts of resistant dextrin and 0.001 parts of β-cyclodextrin.

[0048] Example 2

[0049] The preparation process of plant extract beverages includes the following steps:

[0050] a. Select, remove impurities and dust from 100 parts of American ginseng, crush it, add 0.8 times its volume of water until it is fully soaked, and obtain a mixture of material and water.

[0051] b. Add 95% ethanol and purified water to the mixture of materials and water in step a, adjusting the ethanol concentration in the system to 85% (ethanol volume 8 times). After the first extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 75% (ethanol volume 7 times). After the second extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 65% (ethanol volume 7 times). After the third extraction, filter to obtain the extract. The ethanol concentration decreases progressively during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a medicinal layer sandwiched between them. The upper filter cloth has a pore size of 0.3 mm, the lower filter cloth has a pore size of 0.15 mm, and the medicinal layer is made by flatly packing crushed American ginseng into a PP non-woven filter bag.

[0052] c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank for vacuum concentration. Then transfer them to the processing tank and pump them upwards. They are then adsorbed by a macroporous adsorption resin column with a flow rate controlled at 7 BV / h to obtain American ginseng extract. The adsorption residue is then discarded.

[0053] d. Dry the American ginseng extract, then mix it thoroughly with resistant dextrin, steviol glycosides, citric acid, vitamins, and β-cyclodextrin in a mixer. After sterilization and packaging, the plant extract beverage is obtained.

[0054] The raw materials in step d, by weight, include: 5 parts resistant dextrin, 0.01 parts steviol glycoside, 0.2 parts citric acid, 0.02 parts vitamin, and 0.001 parts β-cyclodextrin.

[0055] Example 3

[0056] The preparation process of plant extract beverages includes the following steps:

[0057] a. Select, remove impurities and dust from 150 parts of Astragalus membranaceus, crush it, add water of 1 volume until it is soaked through, and obtain a mixture of material and water.

[0058] b. Add 95% ethanol and purified water to the mixture of materials and water in step a, adjusting the ethanol concentration in the system to 85% (ethanol volume 8 times). After the first extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 75% (ethanol volume 7 times). After the second extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 65% (ethanol volume 7 times). After the third extraction, filter to obtain the extract. The ethanol concentration decreases progressively during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a medicinal layer sandwiched between them. The upper filter cloth has a pore size of 0.3 mm, the lower filter cloth has a pore size of 0.15 mm, and the medicinal layer is made by spreading Astragalus membranaceus powder flat inside a PP non-woven filter bag.

[0059] c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank for vacuum concentration. Then transfer them to the processing tank and pump them upwards. They are then adsorbed by a macroporous adsorption resin column at a flow rate of 10 BV / h to obtain Astragalus extract. The adsorption residue is then discarded.

[0060] d. The astragalus extract is thoroughly mixed with resistant dextrin, steviol glycosides, citric acid, vitamins, and β-cyclodextrin in a mixer, then sterilized and packaged to obtain the plant extract beverage.

[0061] In step d, the raw materials, by weight, include: 5 parts resistant dextrin, 0.02 parts steviol glycosides, 0.2 parts citric acid, 0.03 parts vitamins, and 0.001 parts β-cyclodextrin.

[0062] Example 4

[0063] The preparation process of plant extract beverages includes the following steps:

[0064] a. Select, remove impurities and dust from 100 parts of Angelica sinensis, crush it, add water of 1 volume until it is soaked and thoroughly soaked, and obtain a mixture of material and water.

[0065] b. Add 95% ethanol and purified water to the mixture of material and water in step a, adjusting the ethanol concentration in the system to 85% (ethanol volume 8 times). After the first extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 75% (ethanol volume 7 times). After the second extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 65% (ethanol volume 7 times). After the third extraction, filter to obtain the extract. The ethanol concentration decreases progressively during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a medicinal layer sandwiched between them. The upper filter cloth has a pore size of 0.3 mm, the lower filter cloth has a pore size of 0.15 mm, and the medicinal layer is made by flatly laying crushed Angelica sinensis inside a PP non-woven filter bag.

[0066] c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank for vacuum concentration. Then transfer them to the processing tank and pump them upwards. They are then adsorbed by a macroporous adsorption resin column at a flow rate of 10 BV / h to obtain Astragalus extract. The adsorption residue is then discarded.

[0067] d. The Angelica extract is thoroughly mixed with resistant dextrin, steviol glycosides, citric acid, vitamins, and β-cyclodextrin in a mixer, then sterilized and packaged to obtain the plant extract beverage.

[0068] The raw materials in step d, by weight, include: 4 parts resistant dextrin, 0.02 parts steviol glycoside, 0.2 parts citric acid, 0.02 parts vitamin, and 0.002 parts β-cyclodextrin.

[0069] Example 5

[0070] The preparation process of plant extract beverages includes the following steps:

[0071] a. Select, remove impurities and dust from 120 parts of Cistanche deserticola, crush it, add 1.0 times its volume of water until it is fully soaked, and obtain a mixture of material and water;

[0072] b. Add 95% ethanol and purified water to the mixture of materials and water in step a, adjust the ethanol concentration in the system to 85%, and perform the first extraction. After filtration, add 95% ethanol and purified water to the obtained filter residue to adjust the ethanol concentration in the system to 75%, and perform the second extraction. After filtration, add 95% ethanol and purified water to the obtained filter residue to adjust the ethanol concentration in the system to 65%, and perform the third extraction. After filtration, obtain the extract. The ethanol concentration decreases step by step during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a medicinal layer sandwiched between them. The pore size of the upper filter cloth is set to 0.3 mm, the pore size of the lower filter cloth is 0.15 mm, and the medicinal layer sandwiched between them is made by spreading crushed Cistanche deserticola flat inside a PP non-woven filter bag.

[0073] c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank for vacuum concentration. Then transfer them to the processing tank and pump them upwards. They are then adsorbed by a macroporous adsorption resin column at a flow rate of 10 BV / h to obtain Astragalus extract. The adsorption residue is then discarded.

[0074] d. The extract of Cistanche deserticola is thoroughly mixed with resistant dextrin, steviol glycosides, citric acid, vitamins and β-cyclodextrin in a mixer, then sterilized and packaged to obtain the plant extract beverage.

[0075] In step d, the raw materials, by weight, include: 4 parts resistant dextrin, 0.01 parts steviol glycoside, 0.2 parts citric acid, 0.02 parts vitamin, and 0.001 parts β-cyclodextrin.

[0076] Example 6

[0077] The preparation process of plant extract beverages includes the following steps:

[0078] a. Select, remove impurities and dust from 120 parts of wolfberries, crush them, add 1.2 times their volume of water until they are fully soaked, and obtain a mixture of material and water.

[0079] b. Add 95% ethanol and purified water to the mixture of materials and water in step a, adjusting the ethanol concentration in the system to 75% (ethanol volume 8 times). After the first extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 65% (ethanol volume 7 times). After the second extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 55% (ethanol volume 7 times). After the third extraction, filter to obtain the extract. The ethanol concentration decreases progressively during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a drug layer sandwiched between them. The upper filter cloth has a pore size of 0.3 mm, the lower filter cloth has a pore size of 0.15 mm, and the drug layer is made by flatly packing crushed wolfberry seeds into a PP non-woven filter bag.

[0080] c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank for vacuum concentration. Then transfer them to the processing tank and pump them upwards. They are then adsorbed by a macroporous adsorption resin column at a flow rate of 10 BV / h to obtain wolfberry extract. The adsorption residue is then discarded.

[0081] d. The wolfberry extract is thoroughly mixed with resistant dextrin, steviol glycosides, citric acid, vitamins, and β-cyclodextrin in a mixer, then sterilized and packaged to obtain the plant extract beverage.

[0082] The raw materials in step d include, by weight, 6 parts resistant dextrin, 0.01 parts steviol glycoside, 0.2 parts citric acid, 0.02 parts vitamin, and 0.001 parts β-cyclodextrin.

[0083] Example 7

[0084] The preparation process of plant extract beverages includes the following steps:

[0085] a. Select, remove impurities and dust from 120 parts of Solomon's Seal, crush them, add 1.2 times the volume of water until soaked through, and obtain a mixture of material and water;

[0086] b. Add 95% ethanol and purified water to the material-water mixture in step a, adjusting the ethanol concentration in the system to 75% (ethanol volume 8 times). After the first extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 65% (ethanol volume 7 times). After the second extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 55% (ethanol volume 7 times). After the third extraction, filter to obtain the extract. The ethanol concentration decreases progressively during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a drug-containing interlayer between them. The upper filter cloth has a pore size of 0.3 mm, the lower filter cloth has a pore size of 0.15 mm, and the drug-containing interlayer is made by flatly laying crushed Polygonatum odoratum inside a PP non-woven filter bag.

[0087] c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank for vacuum concentration. Then transfer them to the processing tank and pump them upwards. They are then adsorbed by a macroporous adsorption resin column with a flow rate controlled at 10 BV / h to obtain Polygonatum odoratum extract. The adsorption residue is then discarded.

[0088] d. Mix the Solomon's Seal Extract with resistant dextrin, steviol glycosides, citric acid, vitamins, and β-cyclodextrin thoroughly in a mixer, then sterilize and package to obtain the plant extract beverage.

[0089] The raw materials in step d include, by weight, 6 parts resistant dextrin, 0.01 parts steviol glycoside, 0.2 parts citric acid, 0.02 parts vitamin, and 0.001 parts β-cyclodextrin.

[0090] Example 8

[0091] The preparation process of plant extract beverages includes the following steps:

[0092] a. Select, remove impurities and dust from 120 parts of Dendrobium, crush them, add 1.2 times the volume of water until they are soaked through, and obtain a mixture of material and water;

[0093] b. Add 95% ethanol and purified water to the material-water mixture in step a, adjusting the ethanol concentration in the system to 75% (ethanol volume 8 times). After the first extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 65% (ethanol volume 7 times). After the second extraction, filter. Add 95% ethanol and purified water to the obtained filter residue, adjusting the ethanol concentration in the system to 55% (ethanol volume 7 times). After the third extraction, filter to obtain the extract. The ethanol concentration decreases progressively during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a medicinal layer sandwiched between them. The upper filter cloth has a pore size of 0.3 mm, the lower filter cloth has a pore size of 0.15 mm, and the medicinal layer is made by flatly laying Dendrobium officinale powder inside a PP non-woven filter bag.

[0094] c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank for vacuum concentration. Then transfer them to the processing tank and pump them upwards. They are then adsorbed by a macroporous adsorption resin column at a flow rate of 10 BV / h to obtain Dendrobium extract. The adsorption residue is then discarded.

[0095] d. The Dendrobium extract is thoroughly mixed with resistant dextrin, steviol glycosides, citric acid, vitamins, and β-cyclodextrin in a mixer, then sterilized and packaged to obtain the plant extract beverage.

[0096] In step d, the raw materials, by weight, include: 5 parts resistant dextrin, 0.01 parts steviol glycoside, 0.2 parts citric acid, 0.02 parts vitamin, and 0.002 parts β-cyclodextrin.

[0097] Based on Examples 1-8, it can be concluded that the extraction method using an ethanol concentration gradient of the present invention can extract both water-soluble active ingredients from medicinal materials and water-insoluble components, and refine them into plant extract beverages. At the same time, it greatly improves the intake and utilization of effective components in medicinal materials, and the prepared plant extract beverages are convenient to store, carry and drink.

[0098] Example 9

[0099] Please see Figures 1-5This invention provides an embodiment of a process and apparatus for preparing plant extract beverages, comprising a vacuum concentration tank 1, a conveying control device 2, and an adsorption rinsing device 3. The conveying control device 2 is fixedly connected between the vacuum concentration tank 1 and the adsorption rinsing device 3. The conveying control device 2 includes a conveying device 4 and a flow rate control unit 5, with the flow rate control unit 5 disposed on the conveying device 4. The conveying device 4 includes a main conveying pipe 6, a first diversion conveying pipe 7, a connecting frame 8, a fixed support frame 9, a second diversion conveying pipe 10, and a third diversion conveying pipe 11. The first diversion conveying pipe 7 and the second diversion conveying pipe 10 are fixedly connected. At both ends of the main delivery pipe 6, the third diversion delivery pipe 11 is fixedly connected to the middle of the end of the main delivery pipe 6, and the first diversion delivery pipe 7 and the second diversion delivery pipe 10 are distributed on both sides of the third diversion delivery pipe 11. The connecting frame 8 is fixedly connected to the ends of the first diversion delivery pipe 7, the second diversion delivery pipe 10 and the third diversion delivery pipe 11. The fixed support frame 9 is fixedly connected to the upper end of the main delivery pipe 6. Liquid is transported by setting three channels: the first diversion delivery pipe 7, the third diversion delivery pipe 11 and the fixed support frame 9. They can be used selectively, making the flow rate control precise and convenient.

[0100] Please see Figure 6 The flow rate control unit 5 includes a first adjusting plate 12, a motor 13, a first sliding adjusting toothed plate 14, a first adjusting gear 15, a synchronous rotating rod 16, a limiting plate 17, an auxiliary adjusting device 18, and a drive connecting post 19. The first sliding adjusting toothed plate 14 is evenly slidably engaged with the limiting plate 17. The synchronous rotating rod 16 is fixedly connected between the first adjusting gears 15. The motor 13 is fixedly connected to the outer end of the first adjusting gear 15 located at the outer end. The drive connecting post 19 is fixedly connected to the inner end of the first adjusting gear 15 located in the middle. The adjustment device 18 is disposed between the first adjustment gears 15 in the middle. The first adjustment plate 12 is fixedly connected to the bottom end of the first sliding adjustment plate 14, and the first adjustment gear 15 and the first sliding adjustment plate 14 are meshed together. The starting motor 13 drives the first adjustment gear 15 to rotate. The rotating first adjustment gear 15 can drive the first sliding adjustment plate 14 to slide along the limiting plate 17, thereby controlling the lifting and lowering of the first adjustment plate 12 inside the first diversion conveying pipe 7, thereby controlling and adjusting the conveying speed of the first diversion conveying pipe 7.

[0101] Please see Figure 7The auxiliary adjustment device 18 includes a second adjustment plate 20, a telescopic drive column 21, a fixed adjustment plate 22, a fixed limiting column 23, a first hydraulic cylinder 24, a second sliding adjustment toothed plate 25, and a second adjustment gear 26. The fixed limiting column 23 is fixedly connected to the middle of both ends of the second adjustment gear 26. The telescopic drive column 21 is slidably engaged inside the fixed limiting column 23. The first hydraulic cylinder 24 is evenly fixedly installed on the fixed limiting column 23. The fixed adjustment plate 22 is evenly fixedly installed on the telescopic drive column 21, and the front end of the first hydraulic cylinder 24 is fixedly connected to the fixed adjustment plate 22. The second sliding adjustment toothed plate 25 is installed on the inner side of the second adjustment gear 26, and the second sliding adjustment toothed plate 25 is meshed with the second adjustment gear 26. The second adjustment plate 20 is fixedly connected to the second sliding adjustment toothed plate 25. At the bottom, the first hydraulic cylinder 24 is activated, causing the telescopic drive column 21 to extend out from the inside of the fixed limiting column 23 and then insert into the inside of the drive connecting column 19. At this time, when the motor 13 is activated, it drives a first adjusting gear 15 to rotate. Through the synchronous rotating rod 16, the drive connecting column 19, the telescopic drive column 21, and the fixed limiting column 23, each of the first adjusting gears 15 and the second adjusting gear 26 can rotate synchronously. This causes the second adjusting plate 20 and the first adjusting plate 12 to slowly rise to a specified height from the inside of the third diversion conveying pipe 11, the first diversion conveying pipe 7, and the second diversion conveying pipe 10, respectively. This allows the first diversion conveying pipe 7, the third diversion conveying pipe 11, and the fixed support frame 9 to synchronously and slowly convey the concentrated extract, making it easy to adjust and control the liquid conveying speed.

[0102] Please see Figure 8 and Figure 9 The adsorption rinsing device 3 includes a spray cleaning disc 27, a macroporous adsorption resin column 28, a water pump 29, a treatment tank 31, a discharge pipe 32, a sealing baffle 33, and a second hydraulic cylinder 35. The discharge pipe 32 is fixedly connected to the bottom outer end of the treatment tank 31. The sealing baffle 33 is slidably engaged with the discharge pipe 32. The second hydraulic cylinder 35 is symmetrically fixedly installed on the treatment tank 31, and the bottom end of the second hydraulic cylinder 35 is fixedly connected to the upper end of the sealing baffle 33. Four water pumps 29 are provided, and the four water pumps 29 are evenly fixedly installed on the upper end of the treatment tank 31. The resin column 28 is fixedly connected to the upper end of the water pump 29, and the spray cleaning plate 27 is set at the upper end of the macroporous adsorption resin column 28. The liquid in the treatment tank 31 is transported upward by the four water pumps 29 and then adsorbed by the four macroporous adsorption resin columns 28, so that the adsorbed residual liquid remains inside the treatment tank 31. After the liquid is adsorbed inside the macroporous adsorption resin column 28, it is connected to the external water supply pipe through the spray cleaning plate 27. The spray cleaning plate 27 cleans the macroporous adsorption resin column 28, so that the cleaned residual liquid flows into the treatment tank 31.

[0103] The connecting frame 8 is connected to the interior of the processing tank 31, so that liquid can be transported from the connecting frame 8 to the interior of the processing tank 31 for adsorption and treatment.

[0104] The limiting plate 17 is fixedly connected to the fixed support frame 9, and the synchronous rotating rod 16 is rotated and engaged on the fixed support frame 9.

[0105] The first adjusting plate 12 is slidably engaged inside the first diversion conveying pipe 7 and the second diversion conveying pipe 10, and the second adjusting plate 20 is slidably engaged inside the third diversion conveying pipe 11.

[0106] The telescopic drive column 21 is adapted to the groove in the middle of the drive connecting column 19, so that the telescopic drive column 21 can be inserted into the drive connecting column 19 to drive the drive connecting column 19 to rotate.

[0107] The telescopic drive column 21, the fixed limit column 23, and the drive connecting column 19 are all hexagonal prisms, which can be connected and driven.

[0108] A connecting pipe 30 is fixedly installed between the bottoms of the macroporous adsorption resin columns 28, so that the macroporous adsorption resin columns 28 can be connected, resulting in a good adsorption effect.

[0109] The working principle of Example 1 is as follows: First, the extract is transported to the vacuum concentration tank 1 for vacuum concentration. The treated liquid is then transported to the connecting frame 8 through the main conveying pipe 6 and the first diversion conveying pipe 7, and then to the processing tank 31. Four water pumps 29 are used to pump the liquid in the processing tank 31 upwards, where it is adsorbed by four macroporous adsorption resin columns 28, leaving the adsorption residue inside the processing tank 31. After the liquid is adsorbed inside the macroporous adsorption resin columns 28, it is connected to an external water supply pipe through a spray cleaning plate 27. The spray cleaning plate 27 cleans the macroporous adsorption resin columns 28, allowing the cleaned residue to flow into the processing tank 31. The second hydraulic cylinder 35 is activated to raise the sealing baffle 33, allowing the cleaning liquid and adsorption residue to be discharged through the discharge pipe 32. When the flow rate needs to be adjusted when the liquid is transported through the main conveying pipe 6, the motor 13 is started to drive the first adjusting gear 15 to rotate. The rotating first adjusting gear 15 can drive the first sliding adjusting tooth plate 14 to move along... The limiting plate 17 slides, thereby controlling the raising and lowering of the first adjusting plate 12 inside the first diversion conveying pipe 7, thus controlling and adjusting the conveying speed of the first diversion conveying pipe 7. When the conveying speed requires precise control, the first hydraulic cylinder 24 is activated, causing the telescopic drive column 21 to extend from inside the fixed limiting column 23 and then insert into the drive connecting column 19. At this time, when the motor 13 is activated to drive a first adjusting gear 15 to rotate, the synchronous rotating rod 16, the drive connecting column 19, the telescopic drive column 21, and the fixed limiting column 23 can make each of the first adjusting gears 15 and the second adjusting gear 26 rotate synchronously, so that the second adjusting plate 20 and the first adjusting plate 12 are slowly raised to a specified height from inside the third diversion conveying pipe 11, the first diversion conveying pipe 7, and the second diversion conveying pipe 10, respectively. This allows the first diversion conveying pipe 7, the third diversion conveying pipe 11, and the fixed support frame 9 to synchronously and slowly convey the concentrated extract, making the liquid conveying speed easy to adjust and control.

[0110] Example 10

[0111] Based on Example 4, such as Figure 10 As shown, a guide buffer plate 36 is fixedly installed at the bottom of the outer end of the discharge pipe 32.

[0112] In this embodiment, the guide buffer plate 36 allows the cleaning liquid and adsorption residue discharged from the discharge pipe 32 to be discharged slowly, making it convenient for collection and treatment.

[0113] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preparing a plant extract beverage, comprising a reduced pressure concentration tank (1), a delivery control device (2) and an adsorption flushing device (3), characterized in that: The conveying control device (2) is fixedly connected between the vacuum concentration tank (1) and the adsorption flushing device (3). The conveying control device (2) includes a conveying device (4) and a flow rate control unit (5). The flow rate control unit (5) is disposed on the conveying device (4). The flow rate control unit (5) includes a first adjusting plate (12), a motor (13), a first sliding adjusting toothed plate (14), a first adjusting gear (15), a synchronous rotating rod (16), a limiting plate (17), an auxiliary adjusting device (18), and a drive connecting column (19). The first sliding adjusting toothed plate (14) is uniformly slidably engaged with the limiting plate (17). The synchronous rotating rod (16) is fixedly connected between the first adjusting gears (15). The motor (13) is fixedly connected to the outer end of the first adjusting gear (15) located at the outer end. The drive connecting column (19) is fixedly connected to the inner end of the first adjusting gear (15) located in the middle. The auxiliary adjusting device (18) is disposed between the first adjusting gears (15) in the middle. The first adjusting plate (12) is fixedly connected to the bottom end of the first sliding adjusting toothed plate (14), and the first adjusting gear (15) and the first sliding adjusting toothed plate (14) are meshed together. The auxiliary adjustment device (18) includes a second adjustment plate (20), a telescopic drive column (21), a fixed adjustment plate (22), a fixed limit column (23), a first hydraulic cylinder (24), a second sliding adjustment tooth plate (25), and a second adjustment gear (26). The fixed limit column (23) is fixedly connected to the middle of both ends of the second adjustment gear (26). The telescopic drive column (21) is slidably engaged inside the fixed limit column (23). The first hydraulic cylinder (24) is uniformly fixedly installed on the fixed limit column (23). The fixed adjustment plate (22) is uniformly fixedly installed on the telescopic drive column (21). The front end of the first hydraulic cylinder (24) is fixedly connected to the fixed adjustment plate (22). The second sliding adjustment tooth plate (25) is installed on the inner side of the second adjustment gear (26). The second sliding adjustment tooth plate (25) is meshed with the second adjustment gear (26). The second adjustment plate (20) is fixedly connected to the bottom end of the second sliding adjustment tooth plate (25). The conveying device (4) includes a main conveying pipe (6), a first diversion conveying pipe (7), a connecting frame (8), a fixed support frame (9), a second diversion conveying pipe (10), and a third diversion conveying pipe (11). The first diversion conveying pipe (7) and the second diversion conveying pipe (10) are fixedly connected to the two ends of the main conveying pipe (6), and the third diversion conveying pipe (11) is fixedly connected to the middle of the end of the main conveying pipe (6). The first diversion conveying pipe (7) and the second diversion conveying pipe (10) are distributed on both sides of the third diversion conveying pipe (11). The first adjusting plate (12) is slidably engaged inside the first diversion conveying pipe (7) and the second diversion conveying pipe (10), and the second adjusting plate (20) is slidably engaged inside the third diversion conveying pipe (11).

2. The plant extract beverage preparation apparatus according to claim 1, characterized by: The connecting frame (8) is fixedly connected to the ends of the first diversion conveying pipe (7), the second diversion conveying pipe (10) and the third diversion conveying pipe (11), and the fixed support frame (9) is fixedly connected to the upper end of the main conveying pipe (6).

3. The apparatus for preparing plant extract beverages according to claim 2, characterized in that: The adsorption rinsing device (3) includes a spray cleaning disc (27), a macroporous adsorption resin column (28), a water pump (29), a treatment tank (31), a discharge pipe (32), a sealing baffle (33), and a second hydraulic cylinder (35). The discharge pipe (32) is fixedly connected to the bottom of the outer end of the treatment tank (31). The sealing baffle (33) is slidably engaged with the discharge pipe (32). The second hydraulic cylinder (35) is symmetrically fixedly installed on the treatment tank (31), and the bottom end of the second hydraulic cylinder (35) is fixedly connected to the upper end of the sealing baffle (33). There are four water pumps (29), which are evenly fixedly installed on the upper end of the treatment tank (31). The macroporous adsorption resin column (28) is fixedly connected to the upper end of the water pump (29). The spray cleaning disc (27) is located on the upper end of the macroporous adsorption resin column (28).

4. The plant extract beverage preparation apparatus according to claim 3, characterized by: The connecting frame (8) is connected to the interior of the processing box (31); the limiting plate (17) is fixedly connected to the fixed support frame (9), and the synchronous rotating rod (16) is rotatably engaged on the fixed support frame (9).

5. The apparatus for preparing plant extract beverages according to claim 4, characterized in that: The telescopic drive column (21) is adapted to the groove in the middle of the drive connecting column (19); the telescopic drive column (21), the fixed limiting column (23), and the drive connecting column (19) are all arranged in a hexagonal prism shape.

6. The apparatus for preparing plant extract beverages according to claim 3, characterized in that: A connecting tube (30) is fixedly installed between the bottoms of the macroporous adsorption resin columns (28).

7. The apparatus for preparing plant extract beverages according to claim 3, characterized in that: A guide buffer plate (36) is fixedly installed at the bottom of the outer end of the discharge pipe (32).

8. A preparation process for a plant extract beverage, using the apparatus for preparing a plant extract beverage according to any one of claims 3-7, characterized in that, Includes the following steps: a. Select one of the following: tea leaves, American ginseng, dendrobium, astragalus, wolfberry, angelica, and Solomon's seal. Remove impurities, dust, and crush the ingredients. Add 0.5 to 2 times the volume of water until the ingredients are thoroughly soaked to obtain a mixture of ingredients and water. b. Add an appropriate amount of 95% ethanol and purified water to the material-water mixture in step a, perform the first extraction, and then filter. Add an ethanol solution prepared with 95% ethanol and purified water to the obtained filter residue, perform the second extraction, and then filter. Add an ethanol solution prepared with 95% ethanol and purified water to the obtained filter residue, perform the third extraction, and then filter to obtain the extract. The ethanol concentration decreases step by step during the first, second, and third extractions. The filter used for filtration consists of upper and lower filter cloths and a medicinal layer sandwiched between them. The pore size of the upper filter cloth is set to 0.3 mm, the pore size of the lower filter cloth is 0.15 mm, and the medicinal layer sandwiched between them is made by pulverizing the corresponding medicinal materials and laying them flat inside a PP non-woven filter bag. c. Combine the extracts from the three extractions and transfer them to the vacuum concentration tank (1) for vacuum concentration. Then transfer them to the processing tank (31) and pump them upwards by a water pump (29). They are then adsorbed by a macroporous adsorption resin column (28) with a flow rate of 5-10 BV / h to obtain the Chinese herbal extract and discard the adsorption residue. d. Dry the Chinese herbal extract, then mix it thoroughly with resistant dextrin, steviol glycosides, citric acid, vitamins, and β-cyclodextrin in a mixer, then sterilize and package it to obtain the plant extract beverage.

9. The preparation process of the plant extract beverage according to claim 8, characterized in that: The raw materials in step d, by weight, include: 4-6 parts resistant dextrin, 0.01-0.05 parts steviol glycosides, 0.2-0.4 parts citric acid, 0.02-0.04 parts vitamins, and 0.001-0.003 parts β-cyclodextrin.

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