CN110338328B - System and method for adjusting hydrogen dissolving amount of beverage - Google Patents
System and method for adjusting hydrogen dissolving amount of beverage Download PDFInfo
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Abstract
The invention discloses a system and a method for adjusting the dissolved hydrogen amount of a beverage, and belongs to the field of preparation of functional beverages. The system comprises a hydrogen injection device, a pH response type micro-nano elastic membrane, a membrane pressure sensor, a pH detector and a dissolved hydrogen detector; the method for adjusting the hydrogen dissolving amount of the beverage comprises the following steps: arranging a dissolved hydrogen quantity adjusting system in the beverage, and starting a hydrogen injection device on the inner side of the pH response type micro-nano elastic membrane; the pH response type micro-nano elastic membrane shrinks and the pore channel is closed under the condition of low hydrogen content, and the pH response type micro-nano elastic membrane expands and the pore channel is opened and solubilized under the condition of high hydrogen content; and (5) regulating the hydrogen dissolving degree of the beverage by the feedback of a membrane pressure sensor and a detector and filling. The scheme has the characteristics of intelligence and high efficiency, can self-regulate the dissolved hydrogen amount (0.5-3.0 ppm, pH 8.0-10.0) according to the requirements of different drinks, and has the advantages of no exogenous additive, good mouthfeel and excellent health-care function.
Description
Technical Field
The invention belongs to the field of functional beverage preparation, and particularly relates to a system and a method for adjusting the hydrogen dissolving amount of a beverage.
Background
Since the selective oxidation resistance of hydrogen and the application of hydrogen in treating cerebral ischemia-reperfusion injury discovered by Shigeo Ohta et al, a scientist in 2007, argues to research the human action mechanism and the application means of hydrogen. So far, many research papers about hydrogen are up to 1000, and it is found that hydrogen as a bioactive molecule has the characteristics of strong penetrating power and high diffusion speed, and can rapidly enter any part of the body to play the functions of oxidation resistance, inflammation resistance, apoptosis resistance and the like. The hydrogen can effectively remove high-concentration free radicals, is more effective and nontoxic compared with other common food-grade antioxidants (such as vitamin C, polyphenol substances and the like), and even has stronger prevention and treatment functions on physiological diseases such as hypertension, diabetes, constipation, dermatitis, cancers and the like caused by the free radicals.
At present, hydrogen-rich water (also called plain water, i.e. a water body rich in hydrogen) and some hydrogen-rich beverages are more common. However, the existing hydrogen-rich beverage has obvious limitations, particularly the amount of dissolved hydrogen is generally lower than 1ppm, and hydrogen charging and high-pressure solubilization steps are often required, so that a large amount of hydrogen cost and energy consumption are consumed, and the waste is serious. Therefore, a convenient and controllable hydrogen dissolving system and a convenient and controllable hydrogen dissolving method are needed, which can not only meet the functions of hydrogen enrichment and stable retention of the beverage, but also intelligently adjust the hydrogen dissolving amount and the beverage quality of the beverage according to actual requirements.
Disclosure of Invention
The invention relates to a method for adjusting the hydrogen dissolving capacity of drinks by using a micro-nano elastic membrane in respiratory bionic design, in particular to a pH response type micro-nano elastic membrane channel system for hydrogen charging/hydrogen generation and para-position hydrogen dissolving and a regulation and control step thereof, wherein the food-grade hydrogen dissolving membrane system is intelligent and efficient, can automatically adjust the hydrogen dissolving capacity (0.5-3.0 ppm, pH 8.0-10.0) according to the needs of different drinks, and has the advantages of no exogenous additive, good taste and excellent health care function.
In order to achieve the purpose, the invention adopts the following specific technical scheme: a method for adjusting the hydrogen dissolving amount of a beverage comprises the following steps:
(1) And (3) arranging the hydrogen dissolving amount adjusting system in the beverage, and after the beverage soaks the pH response type micro-nano elastic membrane, starting a hydrogen injecting device on the inner side of the pH response type micro-nano elastic membrane to enrich hydrogen.
(2) The beverage dissolved hydrogen quantity adjusting system is jointly monitored by the membrane pressure sensor, the pH detector and the dissolved hydrogen detector, when the pH response type micro-nano elastic membrane expands and the pressure intensity measured by the membrane pressure sensor is greater than 0.1-0.3MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor, and the hydrogen enriching rate of the hydrogen injection device is reduced or the hydrogen enrichment is stopped; when the hydrogen passes through the pore channel on the pH response type micro-nano elastic membrane to form micro-nano bubbles, and the pressure intensity measured by the membrane pressure sensor is less than 0.01MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor again, and the hydrogen enrichment rate of the hydrogen injection device is increased or hydrogen enrichment is restarted. When the hydrogen dissolving amount in the container tank reaches the requirement of 0.5-3.0 ppm or the pH value is 8.0-10.0, the hydrogen feedback controller receives the feedback of the detector, the hydrogen injection device finishes the hydrogen dissolving process, and the hydrogen-rich beverage is led out for filling.
Further, the pH response type micro-nano elastic membrane is a membrane made of food grade materials, the substrate is a porous biological base membrane with elasticity, specifically one or more of starch, fiber, chitosan and protein, and the pore diameter is distributed in a range of 100 nm-5 microns.
Furthermore, the grafting group on the surface of the pH response type micro-nano elastic membrane is a cationic group, specifically one of methacrylate, imidazole and pyridine groups containing tertiary amino, and the grafting rate is controlled to be below 0.3%.
Further, the pH value of the beverage is less than or equal to 10.
The utility model provides a drink dissolves hydrogen volume governing system, includes the notes hydrogen device that is used for infusing hydrogen to the drink, wraps up annotate the pH response type of hydrogen device export and receive the elastic membrane a little, be used for detecting the membrane pressure sensors of the elastic membrane is received a little to the pH response type, sets up the detector that is used for detecting drink pH and dissolves hydrogen in the drink to and be used for carrying out regulation and control feedback's controller according to pressure, pH and the volume of dissolving hydrogen to infusing hydrogen.
Further, the hydrogen injection system is a hydrogen charging generator or a hydrogen charging conduit.
Further, the membrane pressure sensor, the pH detector and the dissolved hydrogen detector are an OR gate circuit.
Compared with the prior art, the invention has the following beneficial effects: firstly, the system method established by the invention can fully, uniformly and stably dissolve hydrogen in water in a supersaturated form (the essence is that the hydrogen bubble size is reduced by regulation and control, and floating is slowed or avoided, so that a large amount of hydrogen is enriched in a carrier aqueous solution to reach 3.0 ppm), usually the hydrogen only contains about 0.1-0.3 ppm in water, but the prior art basically adopts a high-pressure hydrogen filling mode to force the hydrogen to be mixed with the water, but the integral dissolution rate is low (< 1.0 ppm), the high-pressure high-dissolved hydrogen at local part is easy to dissipate, and a hydrogen filling system is unstable and nonuniform; in addition, the invention has a self-regulating function, various sensors are matched with the membrane design, the beverage with high hydrogen dissolving capacity is prepared within a reasonable application range, high-pressure energy consumption and excessive hydrogen charging waste are avoided, and the method is safe and environment-friendly. In a word, the scheme has the characteristics of intelligence and high efficiency, can automatically regulate the dissolved hydrogen amount (0.5-3.0 ppm, pH 8.0-10.0) according to the requirements of different beverages, and has the advantages of no exogenous additive, good mouthfeel and excellent health-care function.
Drawings
FIG. 1 is a schematic diagram of a system for regulating the amount of dissolved hydrogen in a beverage according to the present invention.
1 hydrogen injection device, 2pH response type micro-nano elastic membrane, 3 membrane pressure sensor, 4pH detector and hydrogen dissolving detector.
Detailed Description
Fig. 1 is a schematic diagram of a system for regulating the amount of dissolved hydrogen in a beverage according to the present invention, and the system for regulating the amount of dissolved hydrogen in a beverage comprises a hydrogen injection device 1 for injecting hydrogen into the beverage, a pH-responsive micro-nano elastic membrane 2 wrapping an outlet of the hydrogen injection device 1, a membrane pressure sensor 3 for detecting the pH-responsive micro-nano elastic membrane 2, a detector 4 arranged in the beverage for detecting the pH and dissolved hydrogen in the beverage, and a controller for regulating and feeding back the injected hydrogen according to the pressure, the pH and the amount of dissolved hydrogen.
The method for adjusting the hydrogen dissolving amount of the beverage specifically comprises the following steps:
(1) And (3) arranging the dissolved hydrogen quantity adjusting system in the beverage, and after the beverage is soaked in the pH response type micro-nano elastic membrane, starting a hydrogen injection device on the inner side of the pH response type micro-nano elastic membrane without additionally adding enriched hydrogen. In the step, degassed beverage liquid enters the micro-nano elastic membrane through permeation, and fruit particles, macromolecular substances and divalent/high-valence ions in a part of beverage liquid can be filtered and trapped according to pore size selection, so that negative influence on a hydrogen generation process is prevented.
(2) At the beginning, the amount of non-soluble hydrogen in the pH response type micro-nano elastic membrane is low, the pH response type micro-nano elastic membrane shrinks, the pore channel is in a closed state, the pH slowly rises and the internal pressure increases along with the increase of the non-soluble hydrogen in the pH response type micro-nano elastic membrane, the pH response type micro-nano elastic membrane expands, the pore channel is opened, and the hydrogen is guided to diffuse and solubilize. In the step, originally, cation group chains of a porous micro-nano membrane in the beverage liquid with relatively medium and low pH values stretch due to protonation and mutual repulsion between charges to cause closed pores, so that medium permeation is difficult, the pH of the porous micro-nano membrane is changed and weak alkalinity is presented when hydrogen is mixed with water, protonation of the cation groups on the membrane is weakened or disappeared, mutual repulsion between charges is weakened, attraction is enhanced, the overall hydraulic diameter is reduced along with increase of the hydrogen amount and increase of the pH value, so that polymer chain rearrangement curling and pH response type micro-nano elastic membrane pore diameter enlargement are caused, and hydrogen is promoted to pass through and dissolve in the beverage liquid outside the membrane. In addition, pressure is generated in the enrichment process of hydrogen in the pH response type micro-nano elastic membrane, so that the pH response type micro-nano elastic membrane is promoted to be micro-expanded, the diameter of a pore channel is widened, and the hydrogen can pass through and be solubilized.
Further, the pH response type micro-nano elastic membrane is made of a food-grade material: the substrate is a porous biological basement membrane with certain elasticity, comprises starch, fiber, chitosan, protein and a composite membrane thereof, and the aperture is distributed at 100 nm-5 mu m; the grafting group on the surface of the membrane is a cationic group and comprises methacrylate, imidazole and pyridine groups containing tertiary amino, and the grafting rate is controlled to be below 0.3 percent.
(3) The dissolved hydrogen quantity adjusting system is jointly monitored by a membrane pressure sensor, a pH detector and a dissolved hydrogen detector, when the pH response type micro-nano elastic membrane expands and the pressure intensity measured by the membrane pressure sensor is greater than 0.1-0.3MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor, and the hydrogen enriching rate of the hydrogen injection device is reduced or the hydrogen enrichment is stopped; when the hydrogen passes through the pore channel on the pH response type micro-nano elastic membrane to form micro-nano bubbles, and the pressure intensity measured by the membrane pressure sensor is less than 0.01MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor again, and the hydrogen enrichment rate of the hydrogen injection device is increased or hydrogen enrichment is restarted. When the requirement that the set dissolved hydrogen amount is 0.5-3.0 ppm or the pH value is 8.0-10.0 is met in the container, the hydrogen feedback controller receives the feedback of the detector, the hydrogen injection device finishes the hydrogen dissolving process, and the hydrogen-rich drink is guided out and filled. In the step, when the internal pressure of the pH response type micro-nano elastic membrane is increased under the influence of hydrogen enrichment, a 'suction' phenomenon is formed, a signal is released to the membrane pressure sensor, and the signal is fed back to a hydrogen feedback controller through an NOR gate circuit; after the hydrogen enrichment is slowed down, the internal pressure of the pH response type micro-nano elastic membrane is reduced to form an expiration phenomenon, the pH response type micro-nano elastic membrane gradually shrinks and returns to the original volume level, the NOR gate circuit is closed, and hydrogen is continuously generated or added; the pore diameter is reduced in the contraction process, and the formation and diffusion of hydrogen micro-nano bubbles are promoted by combining the surface energy. Meanwhile, after certain dissolved hydrogen amount or pH value is accumulated through repeated 'membrane respiration', the pH detector and the dissolved hydrogen detector monitor in real time and feed back to the hydrogen feedback controller through an NOR gate circuit to realize closing.
Further, the hydrogen filling system is a hydrogen filling generator or a hydrogen filling conduit.
Further, the pH value of the beverage is less than or equal to 10.
The present invention is described in detail below with reference to examples, which are provided for the purpose of illustrating the present invention and are not intended to limit the scope of the present invention.
All the raw materials used in the following examples are commercially available general products, the production equipment used for processing is a self-designed beverage hydrogen dissolving amount adjusting system, and the hydrogen dissolving amount and the pH value are monitored by using a test probe.
Example 1:
and arranging a hydrogen dissolving amount adjusting system in the degassed water, and filling hydrogen into the inner side of the pH response type micro-nano elastic membrane after the membrane is soaked in the degassed water. The pH response type micro-nano elastic membrane is a fiber substrate, the grafting group on the surface of the membrane is a pH response type nano elastic porous membrane of tertiary amine ethyl methacrylate (the grafting rate is 0.3 percent), and the average pore diameter is 100nm. When the signal received by the membrane pressure sensor is greater than 0.1MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor, and the hydrogen enriching rate of the hydrogen generator is reduced. After the hydrogen forms the nano bubbles through the pH response type micro-nano elastic membrane pore channels, and the pressure intensity measured by the membrane pressure sensor is less than 0.01MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor again, and the hydrogen enriching rate of the hydrogen generator is increased. And when the pH value in the water reaches 8.0, the hydrogen feedback controller receives the feedback of the pH detector, the hydrogen generator finishes the hydrogen dissolving process, and the hydrogen-rich water is led out and filled.
Adding the prepared hydrogen-rich water into hydrophobic dye rhodamine 6G to reversely mark hydrogen, and observing distribution in an ultrahigh-resolution confocal laser microscope; and doping nano fluorescent cadmium sulfide quantum dots in the hydrogen-rich aqueous phase, and further observing distribution. The results show that: the hydrogen is densely distributed in the water, and the pore diameter of the bubbles is less than 100nm.
Example 2:
and arranging the hydrogen dissolving amount adjusting system in the degassed mineral water, and filling hydrogen into the inner side of the pH response type micro-nano elastic membrane after the membrane is soaked by the mineral water. The pH response type micro-nano elastic membrane is a starch substrate, the grafting group on the surface of the membrane is a pH response type nano elastic porous membrane of tertiary amine ethyl methacrylate (the grafting rate is 0.21 percent), and the average pore diameter is 1 mu m. When the signal received by the membrane pressure sensor is greater than 0.2MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor, the hydrogen generator is closed, and the hydrogen enrichment is stopped. After the hydrogen forms the nano bubbles through the pH response type micro-nano elastic membrane pore channels, and the pressure intensity measured by the membrane pressure sensor is less than 0.01MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor again, and the hydrogen generator is opened again to start hydrogen enrichment. When the pH value of the mineral water reaches 10.0, the hydrogen feedback controller receives the feedback of the pH detector, the hydrogen generator finishes the hydrogen dissolving process, and the hydrogen-rich mineral water is led out for filling.
Adding a hydrophobic dye rhodamine 6G into the prepared hydrogen-rich mineral water to reversely mark hydrogen, and observing distribution in an ultrahigh-resolution confocal laser microscope; nanometer fluorescent cadmium sulfide quantum dots are doped in the hydrogen-rich mineral water phase, and distribution is further observed. The results show that: the hydrogen is densely distributed in mineral water, and the pore diameter of the bubbles is less than 1 μm.
Example 3:
and arranging a hydrogen dissolving amount adjusting system in the degassed fruit juice, and filling hydrogen into the inner side of the pH response type micro-nano elastic membrane after the fruit juice soaks the membrane. The pH response type micro-nano elastic membrane is a mixed substrate of starch and protein, the grafting group on the surface of the membrane is an imidazole group (the grafting rate is 0.15%), and the average aperture is 5 mu m. When the signal received by the membrane pressure sensor is more than 0.3MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor, the hydrogen charging conduit is closed, and the hydrogen enrichment is stopped. After the hydrogen forms the nano bubbles through the pH response type micro-nano elastic membrane pore channels, and the pressure measured by the membrane pressure sensor is less than 0.01MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor again, and the hydrogen charging conduit is opened again to start hydrogen enrichment. And when the hydrogen dissolving amount in the fruit juice reaches 3.0ppm, the hydrogen feedback controller receives the feedback of the hydrogen dissolving detector, the hydrogen filling conduit finishes the hydrogen dissolving process, and the hydrogen-rich fruit juice is led out and filled.
Adding a hydrophobic dye rhodamine 6G into the prepared hydrogen-rich fruit juice to reversely mark hydrogen, and observing distribution in an ultrahigh resolution confocal laser microscope; and doping nano fluorescent cadmium sulfide quantum dots in the hydrogen-rich fruit juice phase, and further observing distribution. The results show that: the hydrogen is distributed densely in the juice, and the pore diameter of the bubbles is less than 5 μm.
Example 4:
and arranging the hydrogen dissolving amount adjusting system in the degassed soybean milk, and filling hydrogen into the inner side of the pH response type micro-nano elastic membrane after the membrane is infiltrated by the soybean milk. The pH response type micro-nano elastic membrane is a pH response type nano elastic porous membrane with a chitosan substrate and a pyridine group (the grafting rate is 0.19%) as a grafting group on the surface of the membrane, and the average pore diameter is 2 mu m. When a signal received by the membrane pressure sensor is greater than 0.2MPa, the hydrogen feedback controller receives feedback of the membrane pressure sensor, and the hydrogen filling conduit reduces the hydrogen enrichment rate. After the hydrogen gas forms the nano bubbles through the pH response type micro-nano elastic membrane pore channels, the pressure intensity measured by the membrane pressure sensor is less than 0.01MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor again, and the hydrogen filling conduit increases the hydrogen enrichment rate again. When the amount of the dissolved hydrogen in the soybean milk is 0.5ppm, the hydrogen feedback controller receives the feedback of the dissolved hydrogen detector, the hydrogen filling conduit finishes the hydrogen dissolving process, and the hydrogen-rich soybean milk is guided out and filled.
Adding a hydrophobic dye rhodamine 6G into the prepared hydrogen-rich soybean milk to reversely mark hydrogen, and observing the distribution in an ultrahigh-resolution confocal laser microscope; and doping nano fluorescent cadmium sulfide quantum dots in the hydrogen-rich soybean milk phase, and further observing distribution. The results show that: the hydrogen is densely distributed in the soymilk, and the pore diameter of the bubbles is less than 2 μm.
In conclusion, the above general description and specific examples have been given for the purpose of describing the invention in detail, but it will be apparent to those skilled in the art that modifications and improvements can be made in the food grade elastic membrane system, membrane topology and beverage preparation of the present invention, and all such modifications and improvements are intended to be within the scope of the invention.
Claims (4)
1. A method for adjusting the hydrogen dissolving capacity of a beverage is characterized by comprising the following steps:
(1) Arranging a hydrogen dissolving amount adjusting system in the beverage, and after the beverage is soaked in the pH response type micro-nano elastic membrane, starting a hydrogen injection device on the inner side of the pH response type micro-nano elastic membrane to enrich hydrogen;
(2) The beverage dissolved hydrogen quantity adjusting system is jointly monitored by a membrane pressure sensor and a pH and dissolved hydrogen detector, when the pH response type micro-nano elastic membrane expands and the pressure measured by the membrane pressure sensor is greater than 0.1 to 0.3MPa, a hydrogen feedback controller receives the feedback of the membrane pressure sensor, and the hydrogen enriching rate of the hydrogen injecting device is reduced or hydrogen enrichment is stopped; after hydrogen forms micro-nano bubbles through a pore channel on the pH response type micro-nano elastic membrane, and the pressure intensity measured by the membrane pressure sensor is less than 0.01MPa, the hydrogen feedback controller receives the feedback of the membrane pressure sensor again, and the hydrogen enriching rate of the hydrogen injection device is increased or hydrogen enriching is restarted; when the hydrogen dissolving amount in the container is 0.5 to 3.0ppm or the pH value is 8.0 to 10.0, the hydrogen feedback controller receives the feedback of the membrane pressure sensor, the hydrogen injection device finishes the hydrogen dissolving process, and the hydrogen-rich beverage is led out and filled;
the pH response type micro-nano elastic membrane is made of a food grade material, the substrate is a porous biological base membrane with elasticity, specifically one or more of starch, fiber, chitosan and protein, and the aperture is distributed in the range of 100nm to 5 mu m;
the grafting group on the surface of the pH response type micro-nano elastic membrane is a cationic group, specifically one of methacrylate, imidazole and pyridine groups containing tertiary amino, and the grafting rate is controlled to be below 0.3%.
2. The method for adjusting the dissolved hydrogen amount in the beverage according to claim 1, wherein the dissolved hydrogen amount adjusting system comprises a hydrogen injection device (1) for injecting hydrogen into the beverage, a pH-responsive micro-nano elastic membrane (2) wrapping an outlet of the hydrogen injection device (1), a membrane pressure sensor (3) for detecting the pH-responsive micro-nano elastic membrane (2), a detector (4) arranged in the beverage for detecting the pH and dissolved hydrogen of the beverage, and a controller for regulating and feeding back the injected hydrogen according to the pressure, the pH and the dissolved hydrogen amount.
3. The method for regulating the amount of dissolved hydrogen in a beverage according to claim 2, wherein the hydrogen injection device (1) is a hydrogen charging generator or a hydrogen charging conduit.
4. The method for adjusting the dissolved hydrogen content in the beverage according to claim 2, wherein the membrane pressure sensor, the pH sensor and the dissolved hydrogen detector are NOR gates.
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| CN201910595780.1A CN110338328B (en) | 2019-07-03 | 2019-07-03 | System and method for adjusting hydrogen dissolving amount of beverage |
| PCT/CN2020/091170 WO2021000661A1 (en) | 2019-07-03 | 2020-05-20 | Beverage hydrogen-dissolving amount adjustment system and method |
| LU101839A LU101839B1 (en) | 2019-07-03 | 2020-06-09 | System and method for adjusting hydrogen dissolving amount of beverage |
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| CN105803679A (en) * | 2016-05-27 | 2016-07-27 | 天津工业大学 | Preparation method of pH response type multi-scale structure polyvinylidene fluoride nanofiber membrane |
| WO2017084605A1 (en) * | 2015-11-17 | 2017-05-26 | 上海纳诺巴伯纳米科技有限公司 | Preparation device and preparation method for supersaturated hydrogen solution |
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| CN104591417A (en) * | 2014-05-25 | 2015-05-06 | 李燕飞 | Preparation method and preparation equipment of hydrogen-rich water |
| CN104709995A (en) * | 2015-03-17 | 2015-06-17 | 黄岳祥 | Hydrogen-rich water generator |
| CN104876376A (en) * | 2015-05-06 | 2015-09-02 | 成都拜尔麦迪克医疗科技有限公司 | Preparation device and preparation method of high-concentration and high-stability hydrogen-rich water |
| CN105152131B (en) * | 2015-09-30 | 2018-05-22 | 林建凌 | Molten hydrogen production device and molten hydrogen, hydrogen generating method occur for hydrogen |
| JP7075176B2 (en) * | 2016-04-27 | 2022-05-25 | 株式会社 伊藤園 | A method for suppressing a decrease in the hydrogen content of a hydrogen-containing liquid, a method for suppressing a decrease in the hydrogen content of the hydrogen-containing liquid, and a method for producing a hydrogen-containing liquid. |
| CN108324105A (en) * | 2018-04-16 | 2018-07-27 | 胡立峰 | The molten hydrogen movement of teahouse machine and its working method and application |
| CN108703220A (en) * | 2018-05-24 | 2018-10-26 | 河北云悦生物科技有限公司 | A kind of hydrogen-rich drink preparation method and device |
| CN110338328B (en) * | 2019-07-03 | 2022-11-15 | 浙江大学 | System and method for adjusting hydrogen dissolving amount of beverage |
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| WO2017084605A1 (en) * | 2015-11-17 | 2017-05-26 | 上海纳诺巴伯纳米科技有限公司 | Preparation device and preparation method for supersaturated hydrogen solution |
| CN105803679A (en) * | 2016-05-27 | 2016-07-27 | 天津工业大学 | Preparation method of pH response type multi-scale structure polyvinylidene fluoride nanofiber membrane |
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