KR100850377B1 - Manufacturing method of green tea beverage using deep-sea water - Google Patents

Abstract

A method of producing a green tea beverage is provided to obtain the beverage having improved freshness and flavor while producing no precipitates during long-term storage. A green tea beverage is prepared by the steps of: heating deep sea water at 20 to 30deg.C; putting it into an electric treatment tank and applying a high pressure static electrode to a stainless steel electrode filled with wood coal in the electric treatment tank, performing magnetization treatment with a static electrode magnetron magnetizer, treating with microclustered water with a half-bandwidth of 17O-NMR of 48 to 60Hz, filtering with any one of sand filtering, precision filtering and ultra-filtrating to remove salt from deep sea water; pouring an aqueous organic acid solution to the obtained fresh water to adjust the pH to 4.5 to 5.5; heating the fresh water at 50 to 85deg.C, mixing with green tea, extracting, filtering and centrifuging and mixing the green tea extract with 0.002 to 1.2% by weight of additives containing non-reducing disaccharide or non-reducing sugar alcohol to give green tea extract containing additives; mixing the green tea extract containing additives with 3 to 5 times the weight of the fresh water, adding with an aqueous solution of sodium bicarbonate to adjust the pH to 5.8 to 8.5 and sterilizing.

Description

Manufacturing method of green tea beverage using deep-sea water

1 is a manufacturing process of the green tea beverage

2 is a small grouping process chart of water molecules

<Explanation of symbols for main parts of drawing>

 One; Electronic treatment tank 2; electrode

 3; Insulator 4; Stainless steel sheet

 5; Foundation concrete structure 6; grounding

 7; Constant voltage generator (Electron charger)

 7a; Variable resistor 7b; grounding

 7c; Primary winding 7d; Iron core

 7e; Secondary winding 8; Intermediate Treatment Tank

 9; Magnetizer feed pump 10; Constant Voltage Conduit Magnetizer

11; Small group treated water storage tank 12; Small group treatment water

FI; Flow indicator

PCV; Pressure control valve

pHI; pH indicator

ORPI; Oxidation Reduction Potential Indicator

The present invention relates to a method for preparing a green tea beverage using deep sea water, and more particularly, to a small group of water molecules that are clean and free of contaminants of deep sea water under low temperature and high pressure for a long time. The present invention relates to a method of manufacturing green tea beverages having excellent refreshing feel without extracting green tea using aging that exists as microclustered water, without depositing during storage and distribution.

Considering the following points in the preparation of green tea beverages are as follows.

Catechins (Epicatechin, Gallocatechin, Epigallocatechin, Epicatechin gallate, Epigallocatechin gallate, etc.) contain about 30 wt% of flavonol-type polyphenols in the dried green tea leaves. If left untreated, there is a problem that precipitates are generated to degrade the quality of the product, so in green tea beverage production, green tea beverages that are not discolored and deteriorated should not be produced even when stored for a long time.

1) Polyphenolic compounds contained in green tea are oxidized to quinone compounds by catalysis of polyphenoloxidase in aqueous solution with high concentration of dissolved oxygen (DO), and quinone compounds are other organic substances. (Proteins, amino acids, etc.) and the following polycondensation reactions produce precipitates that are insoluble in water, and polyphenol compounds such as tannins react with compounds such as caffeine at low temperatures (when cooling). Produces insoluble precipitate in water.

Polyphenol Compound + O ₂ --Polyphenoloxidase → Quinone Compound + H ₂ O ₂ … ①

Quinone Compound + Organics ----- → Cotton precipitate insoluble in water ... … … … ②

Tannin + Caffeine-→ Sediment… … … … … … … … … … … … … … … … … … … … ③

The reaction of ① to ③ described above is caused by the same mechanism as the mechanism of formation of corrosive substances due to the inflow of fluids of plants and plants in the natural ecosystem. When the reaction occurs, the quality of the product is lowered, so the following treatment is performed to prevent the reaction of ① to ③, but there is a significant problem.

2) If the dissolved oxygen concentration in water is high, the reaction of ① is promoted, so that the dissolved oxygen concentration of the water is deoxygenated to 1 mg / l or less, or nitrogen (N ₂ ) is injected and aerated. It is preferable to perform the treatment, but the treatment is not easy.

3) Because polyphenoloxidase is weak to heat, it is necessary to thoroughly inactivate the oxidase by heat treatment such as steaming or roasting tea leaves.

4) In order to reduce the activity of oxidase, enzymes such as hemicellulase activity, lysolecithin, β-mannanase and α-amylase, were extracted into the extract. It can be produced by injecting clarified green tea drink (淸 澄 綠 茶 飮 料), but when injected too much, there is a problem that the flavor (香味) is lowered.

5) Reducing substances such as L-ascorbic acid, sodium ascorbate, citric acid and malic acid are added, but excessive use may damage the taste of green tea. have.

In the present invention, when a non-reducing disaccharide or a non-reducing sugar alcohol is added and the oxidation reduction potential (ORP) is treated at +100 kPa or less, the reaction scheme described above can be stored for a long time. It was confirmed that the reaction between ① and ② was suppressed.

7) The hardness should be less than 50mg / ℓ of water.

Using high hardness raw water may react with minerals such as iron (Fe), calcium (Ca), and magnesium (Mg) in water to form insoluble precipitates.

Polyphenols (eg tannin) + minerals (eg iron) → polyphenolmineral salts (eg tannin)... ④

Calcium (Ca), iron (Fe), magnesium (Mg) in water; Raw water having a high mineral content, such as polyphenolic mineral salts, is insoluble in water, so that precipitates may be generated. Therefore, it is preferable to use water having a hardness of 50 mg / l or less. It was confirmed that the addition of a small amount of organic acid to form a complex compound inhibits the reaction of Scheme ④ without impairing the taste of green tea.

8) The pH of the extraction liquid is preferably slightly acidic water of 4.5 to 5.5.

Water with too low pH thins the color of the extract, and alkaline water with high pH decreases the fragrance of the tea, so the pH of the extract is 4.5-5.5.

9) Extraction temperature and extraction time of difference should be proper.

When the extraction temperature of tea liquor is below 50 ℃, the extraction efficiency decreases, and when it exceeds 90 ℃, the tannin component is excessively extracted and the bitter or tea taste is reduced. It is preferable to extract the extraction temperature at 50 to 90 ° C. for 2 to 15 minutes because the tannin component is excessively extracted and the bitter or tea taste is reduced even if it is long.

10) Use water in which odorous substances are not dissolved.

11) Oxidation Reduction Potential (ORP) is good for water in the range of + 100 ~ -200㎷.

Water with a redox potential of up to + 200㎷ is called reducing water, and reducing water is good for health because it has the ability to eliminate free radicals in the body, and if the redox potential is below -200㎷, In order to reduce the taste, the present invention adjusts the redox potential value in the range of +100 to -200 kPa.

The redox potential of deep sea water is slightly lower (+165 to +175 kPa) compared to +500 to +700 kPa for general beverages such as tap water, but higher than the optimum value of +100 to -200 kPa.

12) In case of treating deep sea water and using it as water, boron compound should be treated with drinking water standard value of 0.3 mg / l or less.

In the deep sea water, boron is contained in the form of boric acid (H ₃ BO ₃ ), containing 4-5 mg / l, and the particle size is small, with an ion radius of 0.23 Å, so that drinking water can be obtained by simple nanofiltration and reverse osmosis. As treatment standard is less than 0.3mg / l, it is difficult to process, so the pH is 9 ~ 11, and alkali treatment is used to convert boric acid into gel-based polyboric acid for reverse osmosis filtration. Should be handled by

13) Microclusterted water with a small cluster of water molecules is preferable.

The small group of water molecules with small number of water molecules has lower surface tension and improves penetration and dissolving power, which improves the extraction efficiency of tea liquor. ), Using a small group number with a half-width of 48-60 ㎐ for nuclear magnetic resonance ¹⁷ O-NMR. When the tea beverage is prepared, it has the following characteristics.

① Small group water can improve the permeability as the surface tension decreases and improve the extraction power of green tea ingredients.

② improves the refreshment and improves the taste of water.

③ promote the body's absorption, excretion, and smooth blood flow to promote metabolism (新陳代謝).

Therefore, in the present invention, a small group number in which the nuclear magnetic resonance ¹⁷ O-NMR value is in the range of 48 to 60 Hz is used.

Deep sea water is generally called deep sea water of less than 200m, and unlike seawater on the surface, because of the lack of sunlight, plankton and living organisms do not proliferate, so the concentration of nutrients is high. As there is no contaminant present in surface seawater because it is not mixed with seawater, low temperature stability, cleanliness, eutrophicity, mineral balance characteristics, and ripening There are characteristics such as sex, and the details are shown in Table 1.

                      Table 1 Characteristics of deep sea water

  Low temperature stability While the surface water temperature fluctuates greatly with the seasons, deep ocean waters are stable at low temperatures with little fluctuations in the water temperature.    Cleanliness Deep ocean water is deep and difficult to be polluted by terrestrial river water and air, and there are very few chemicals, bacteria, organisms and suspensions.   Eutrophication The deep ocean water is deep in the sunlight and does not have photosynthesis. Compared with surface sea water, it contains many inorganic nutrients such as nitrogen, phosphorus, and silicic acid, which are necessary for the growth of living organisms.   Mineral properties Deep sea water contains a variety of essential minerals and is characterized by low impurities.    Aging Deep sea water matures over a long period of time under high pressure, and the clusters of water molecules are small grouped, so that the surface tension is low, and the permeability is high, and the thermal conductivity is high.

Deep sea water is considered in terms of manufacturing green tea beverages, and the clusters of water molecules are sub-grouped for a long time under cleanliness and low temperature and high pressure that are free of any contaminants and harmful bacteria. Because of its low surface tension and ripening with water having good permeability, it is good to remove salts.

The deep sea water is aged under the low temperature and high pressure of minerals for a long time in the depth of 200m or less, and the nuclear magnetic resonance (NMR) ¹⁷ O-NMR half width is 75 ~ 80㎐ and ¹⁷ O in general tap water. Although the group of water molecules is smaller than the NMR half-width of 130-150 ,, Lourdes and Evian in France, Nordenau in Germany, Mineral waters such as Nadana, India, and Tracote, Mexico, have a nuclear magnetic resonance ¹⁷ O-NMR half-width of 50 ~ 60㎐, which is higher than the famous mineral water. It is preferable to treat the value of the ¹⁷ O-NMR half width of the magnetic resonance in the range of 48 to 60 Hz.

In the manufacture of most green tea beverages, other than Korean Patent Registration No. 10-0195624, Japanese Patent Publication No. 2003-169603, and Japanese Patent Publication No. 2003-259806, the use of mineral water or general water with large aggregates of water molecules (Taste of water) has a problem of falling, and in the case of Korean Patent Registration No. 10-0195624, the green tea extract is left to cool for about 50 ° C. or less for a long time to induce the reactions of the aforementioned reaction formulas ① to ③ to generate a precipitate. The method of preparing green tea beverages after removing insoluble cotton precipitate in water may cause a problem of degrading the quality of the product because the reactions of the reaction equations ① to ③ described above may occur during distribution.

Hemicellulase as in Japanese Patent Application Laid-Open No. 8-228684, Patent Publication 2001-45973, Patent Publication 2001-204386, Patent Publication 2002-119209 and Patent Publication 2004-187613. When adding enzymes such as active enzymes, α-amylase, Lysolecithin, β-mannanase, or hydroxy carboxylic acid, the unique flavor and taste of green tea There is a problem of damage.

The present invention is to solve the above problems by diluting the difference between the green tea component extracted by using a small group of small groups of water molecules, and then adding an additive such as non-reducing disaccharides or non-reducing sugar alcohols. It is an object of the present invention to provide a method for preparing a green tea beverage which is sterilized after adjustment to have a good taste (freshness) and no precipitate is produced.

In order to achieve the above object, the present invention is to take the deep sea water, warming treatment, small grouping of water molecules, pretreatment of deep sea water, such as pre-filtration, salt removal step of the deep sea water, tea extract step, final tea beverage It is characterized by consisting of manufacturing steps.

Tea is divided into unfermented green tea, semi-fermented tea, black tea, and fermented tea oolong tea, depending on whether the tea leaves are fermented. Green tea is not fermented. Tea is made using).

In order to make green tea, the other leaves are immediately heated to destroy oxidase to keep the green color as it is, and the moisture is evaporated to dry the leaves in a good condition to dry the leaves. Continue to remove most of the water to make it somewhat crunchy, and in recent years, tea is mainly made using a steamer, an oil dispenser, a base oil, a rebuilder, an oil refiner, and a dryer.

The types of green tea are roasted in pottery, tram, matcha, matcha, and kiln according to the method of processing the tea leaves, the time of picking the tea leaves, the origin of the tea, the shape of the tea, the legend, and the table. There are various types of vinegars such as vinegar tea and steamed tea, which are boiled in shiru, and according to the degree of fermentation. Boiled tea (증)], partially fermented tea (Jasmin tea, Oryong tea, yellow tea), fermented tea (black tea), and post-fermented tea (boiled tea, yukbo tea), etc., depending on the processing method, leaf tea, mixed It is divided into tea [flower tea, brown rice tea, mixed tea (flower tea)], powdered tea, rice cake tea, green tea, black tea, red tea, and so on. ,, getting in and out of the car, prior car, carburetor car, hawk car, autumn car, car, car, etc. Separated by Depending on the place of origin, it is also divided into spring snow tea, snow tea, correction tea, vanya Ⅰ tea, bachelor tea, and vanyaro, and the color depends on the tea processing method, the time of picking tea leaves, the origin of tea, the shape of tea and the legendary appearance.色, aroma (flavor), taste (味) is different, and the name is called differently.

As described above, there are various kinds of tea according to the processing method of the tea leaves, the time of picking the tea leaves, the origin of the tea, the shape of the tea, the legend, the appearance and the like. The method of preparing a green tea beverage having excellent refreshing feeling without changing the color and taste without generating a precipitate even after storing the tea liquid with the salt removed in water for a long time will be described in detail with reference to the drawings.

I. Desalination stage of deep sea water

Deep sea water has characteristics such as low temperature stability, cleanliness, eutrophicity, mineral balance characteristics, and maturation. After the salt is removed by aging, water suitable for the production of green tea beverage is prepared by the following treatment method.

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1. Intake and warming process

The deep sea water is taken in from the depth of the sea below 200m, and the intake method is to take the pipe down from 200m below the seabed or install the pipe to the depth of 200m below the seabed or with the pump. Pipes are installed to a depth of 200 m or less, and the intake wells are installed below the sea level, and the water is collected according to the siphon principle.

The deep sea water collected in the sump is low in temperature and high in viscosity, resulting in low treatment efficiency. Therefore, it is heated to 20 ~ 30 ℃ by receiving heat from boiler (in summer, you can use the surface water temperature). It is sent to the electronic treatment tank (1) of the small grouping process of the.

Even if the treatment efficiency decreases slightly, if the small grouping of water molecules is omitted to reduce the facility cost, the warmed treatment is sent to the pretreatment filtration process.

2. Small grouping process of water molecules

When the deep seawater heated to 20 to 30 ° C is supplied to the electronic treatment tank 1, it is magnetized by high pressure constant voltage treatment and constant voltage conductive tube magnetizer (10) or permanent magnet. By clustering the cluster of water molecules (Microclustered water) to a small group (Microclustered water) to reduce the surface tension and the viscosity is sent to the pre-treatment filtration process.

The small grouping process of the water molecules is performed by combining the high-voltage constant voltage treatment and the magnetization treatment in the constant voltage conductive tube magnetizer 10. Injected into the treatment tank 1, the high-voltage AC constant voltage from the constant voltage generator 7 is applied to the electrode 2 by applying a voltage of 3,000 to 5,000 volts and a current of 0.4 to 1.6 kV, When the electrostatic fields of + and-are alternately applied to the water molecules for 4 to 10 hours alternately, the hydrogen molecules of the water molecules are partially vibrated and vibrated and rotated. Is cut into the intermediate treatment water storage tank (8), and is sent to the magnetizer supply pump (9) to the constant voltage conductor tube magnetizer (10) and wound in a coil wound around the conductive pipe (0.5 to 5 Volts). When applying low voltage of AC or DC in the range, Negative, while some are conveyed to the electronic processing tank (1), nuclear magnetic resonance; number of sub-groups of the half-width range 48~60㎐ (半値幅) value of the ¹⁷ O-NMR of (核磁氣共鳴Nuclear magnetic resonance, NMR) ( After treatment with microclustered water, it is sent to a small-sized water storage tank 11 and sent to a pretreatment filtration process by a small-sized water transfer pump 12.

The flow rate sent from the intermediate treatment water storage tank 8 to the magnetizer supply pump 9 to the constant voltage conductive tube magnetizer 10 and returned to the electronic treatment water tank 1 is 1 to 4 times the inflow water flow rate.

The small grouped water thus produced is treated with reduced water having a high alkaline oxidation frequency with a high energy Oxidation Reduction Potential (ORP) value in the range of +100 to -200 Hz.

The voltage applied to the electrode 2 of the electronic treatment tank 1 in the constant voltage generator 7 is adjusted in accordance with the values of pHI (7.4-7.8) and ORPI (+100 kPa or less) installed in the intermediate treatment water reservoir 8. do.

The material of the electrolytic treatment tank 1 is made of stainless steel, and the stainless steel electrode 2 filled with charcoal having high conductivity is inside. To the bottom of the insulator (3) of polyethylene (polyethylene), polyvinyl chloride (PVC), Styrofoam (Styrofoam) is selected and installed, the lower part of the insulator (3) is a conductor and corrosion-resistant material A steel sheet 4 is installed between the foundation concrete structures 5, and the stainless steel sheet 4 is grounded 6 to the ground.

The constant voltage conductor magnetizer 10 is 0.5 to 5 volts in a coil wound on a cylindrical tube of an insulating material such as synthetic resin (PVC, PE, styrene resin, etc.), ebonite, FRP, and bakelite. When a low voltage of alternating current or direct current is applied, a magnetic field is formed inside the coil.When water (fluid) passes through it, the water is dissolved in water while being treated as a small group of water. Minerals are activated.

Instead of the constant voltage conductive tube magnetizer 10, a permanent magnet magnetized in the range of 12,000 to 15,000 G (Gauss) may be provided.

In addition, when the capacity of the treated water is large, the electronic treatment water tank 1 in which the electrode 2 network of stainless steel filled with charcoal is embedded is treated by installing multiple stages.

As in the present invention, when the group of the water molecules by the high-voltage constant voltage treatment and the magnetizer is small grouped and treated with the small group water, the surface tension and the viscosity of the water are reduced and the penetration force is reduced. ), The absorption efficiency is excellent when ingested while improving the filtration efficiency in the filtration process.

However, even if the treatment efficiency is somewhat reduced, in order to reduce the facility cost, the small grouping treatment of water molecules may be omitted, and the heat treated at 20 to 30 ° C. may be sent to a pretreatment filtration process for treatment.

3. Pretreatment Filtration Process

The small group water treated in the small grouping process of the water molecules was subjected to sand filtration, microfiltration or ultrafiltration alone or a combination of two or more processes. The suspended solids (SS; Suspended solid) filtered filtrate in the range of 2 to 4 FI (Fouling index) value is sent to the nanofiltration process.

At this time, the filtration pressure is determined in consideration of the pressure loss of the filter and the pressure loss of the pipe according to the operating conditions.In the case of sand filtration, the filtration speed is 6-10 m / hour, and the effective diameter of the filter sand Is 0.3 to 0.45 mm, the uniformity factor is 2.0 or less, and the thickness of a fibrous layer is 0.5 to 1.0 m.

At this time, if the turbidity of the deep ocean water taken is 2 mg / ℓ or less, it is not necessary to sand filtration.

Micro-filter and ultra-filter are not limited to the type of filtration membrane, and the supply pressure of the pump is decided by considering the filtration speed and the pressure loss according to the vendor's specifications. do.

In microfiltration or ultrafiltration, filtration treats the water's fouling index (FI) in the range of 2-4.

The FI value is a numerical value representing the fine turbidity concentration in the target water and is expressed by the following equation (5).

FI = (1-T ₀ / T ₁₅ ) x 100/15... … … … … … … … … … … … … … … … … … … … ⑤

T ₀ is the time required for filtration of the first 500 ml of sample water when the sample water was filtered under pressure of 0.2 MPa using a 0.45 μm microfiltration membrane, and T ₁₅ was filtered for 15 minutes in the same state as T _0. It is time required for filtration of 500 ml of sample water after that.

4. Nano filtration process

The filtered water filtered in the pretreatment filtration process is supplied to the filtration membrane of the nanofiltration process at a pressure of 15 to 20 kg / cm 2 to discharge unfiltered sulfate ion-containing water that causes clogging, and to remove sulfate ions. The brine is sent to the first reverse osmosis process.

The membrane modules of nanofiltration and reverse osmosis are tubular type, hollow fiber type, spiral wound type, and flat plate type; Any form such as plate and frame type may be used, and the material of the film is not particularly limited.

As the material of the nanofiltration membrane, polyamide-based, polypiperazineamide-based, polyesteramide-based, or cross-linked water-soluble vinyl polymer can be used. Is an asymmetric membrane composed of a dense layer on one side of the membrane, which is composed of micropores gradually from a large pore toward the inside of the membrane or toward the membrane on one side, or a dense layer of such an asymmetric membrane. A composite membrane having a very thin separation functional layer formed of another material may be used. A piperazine polyamide composite membrane is preferable, but the material and structure of the membrane are not particularly limited in the present invention. .

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Nanofiltration process, the sulfate ions that cause scale (Scale) generated in the reverse tuyeogwa of the post processing (SO ₄ ^{2 -)} for the removal is the main purpose, which, suspended solids in the water in the pre-filtering step (SS; Suspended solid) of The removed deep sea water is sent to a nanofiltration process to discharge unfiltered sulfate-containing water, and the filtered desulfurization ion mineral brine is sent to the first reverse osmosis process.

Transmission sequence of the ion in the nanofiltration membrane, if the cation is ^{Ca 2 +> Mg 2 +>} Li +> Na +> K +> and NH ₄ ^+, if the anion is _{^{SO 4 2 - »HCO 3 ->}} F - ^{> Cl -> Br -> NO} 3 -> and SiO _2, a sulfate ion (SO ₄ ^{2 -),} if the it is difficult to permeate than Mg ^{+ 2} and Ca ^{+ 2.}

In the nanofiltration process, the supply pressure to the membrane is supplied at 15 to 20 kg / cm 2, which is lower than the osmotic pressure of 25 kg / cm 2 of deep seawater with a salt concentration of 3.5 wt%. In this case, the membrane permeation rate is 0.7 If it is -1.4 m <3> / m <2> * days, membrane permeate amount will be 70 to 80% of inflow amount.

Example 1

After warming the deep sea water to 25 ° C, a group of water molecules is injected into the electronic treatment tank 1 of the small grouping process, and a high-pressure alternating-current constant voltage is applied to the electrode 2 from the constant voltage generator 7. A coil wound around the conductive tube by sending the voltage of Volt and the current of 0.5 mA for 5 hours to the intermediate treatment water storage tank 8 and then to the constant voltage conductive tube magnetizer 10 by the magnetizer supply pump 9. Magnetization treatment by applying a direct current of 0.6 volts to the electrolytic treatment tank, and then some were returned to the electronic treatment tank (1), where the half-width of ¹⁷ O-NMR of nuclear magnetic resonance was 52 ㎐. Filtration water pretreatment with FI value of 3.2 in ultrafiltration was carried out using a spiral nanofiltration membrane of model No. SU-610 made of cross-linked polyamide of Toray Industries, Ltd., Japan. The membrane permeated water was supplied to the membrane at 2 cm 2 to 1.2 m 3 / m 2. Membrane permeate flow was 80% of the intake quantity, at this time the number of filtered and unfiltered water containing sulfate ions de sulfate laminate of a main component analysis value equal to the content indicated in Table 2.

Table 2 Analysis of Principal Components of Unfiltered Sulfate-Ionated Water and Filtered Desulfurized-ion Mineral Saline by Nanofiltration

 Item      Pre-treated deep sea water (raw water)         Filtrated Desulphate Ion Mineral Saline    Unfiltered sulfate-containing water      pH        7.80         7.24          7.82 Na ⁺ (mg / L)   10,800    9,650     15,400 Cl ^- (㎎ / ℓ)   22,370   17,300     42,650 Ca ^{2 +} (㎎ / ℓ)      456      338        928 Mg ^{2 +} (㎎ / ℓ)    1,300    1,060      2,260 K ⁺ (mg / L)      414      355        650 _{^{SO 4 2 - (㎎ / ℓ}} )    2,833      319     12,890  B (mg / L)        4.44        4.10          5.80

As shown in Table 2, nanofiltration of deep sea water resulted in almost no removal of boron compounds, 28.5% Na, 41% calcium (Ca) and 35% magnesium (Mg). However, more than 90% of sulfate ions were removed.

5. First Reverse Osmosis Filtration Process

In the first reverse osmosis process, the purpose of concentrating low concentration of mineral brine is to produce demineralized water and concentrate the mineral brine. In addition, the operating pressure was supplied to the filtration membrane at 50 to 70 kg / cm 2, and the unconcentrated mineral brine was sent to the salt manufacturing process, and the filtered demineralized water was sent to the first pH adjustment process.

When the filtration membrane of the first reverse osmosis filtration process is a spiral filtration membrane, when the operating pressure is 55 to 56 kg / ㎠ and the membrane permeate is 0.5 to 0.8 ㎥ / m², the desalted water, which is filtered water, is removed in the range of 99.0 to 99.85 wt%. 40 to 60% of the influent is filtered.

Example 2

The desulfurized ion mineral saline, the filtrate filtered in the nanofiltration of Example 1, was a crosslinked polyamide-based composite membrane in a high pressure reverse osmosis membrane of Toray Industries, Ltd., Japan. When the membrane was supplied with a pressure of 60㎏ / ㎠G using a spiral reverse osmosis filtration membrane of model No. SU-810, the membrane permeate was 52% of the influent when the membrane permeate was 0.72㎥ / m². The analysis of the main components of the demineralized and brine concentrated concentrated brine is shown in Table 3.

Table 3 Analysis of Principal Components of Demineralized Water, Filtrate, and Unconcentrated Concentrated Mineral Brine in First Reverse Osmosis

 Item  Influent (Desulfurized Ion Mineral Brine)   Filtered demineralized water  Concentrated brine      pH        7.24         7.20       7.28 Na ⁺ (mg / L)    9,650       38.7    20,063 Cl ^- (㎎ / ℓ)   17,300       71.6    35,478 Ca ^{2 +} (㎎ / ℓ)      338        0.6       703 Mg ^{2 +} (㎎ / ℓ)    1,060        1.9     2,206 K ⁺ (mg / L)      355        1.7       737 _{^{SO 4 2 - (㎎ / ℓ}} )      319        3.7     1,584  B (mg / L)        4.1        1.8         6.6

As shown in Table 3, most of the materials were removed by the first reverse osmosis in the deep seawater, but the boron compound was 1.8mg / l and the removal rate was very low, below 80%. Since it is more than 6 times, it cannot be used as green tea extract water by itself.

When the small grouping process of the water molecule group was omitted in the pretreatment step, the membrane permeation amount dropped to 0.68m 3 / m 2 · day when the operating pressure was supplied to the membrane at the same pressure at 60㎏ / ㎠G. It was reduced to 46% of the inflow.

6. Boron Compound Removal Process by Adjusting Primary pH and Secondary Reverse Osmosis

Boron is contained in the deep sea water in the form of boric acid (H ₃ BO ₃ ) while it is contained in the range of 4-5 mg / l, and the particle size is small, with an ion radius of 0.23 Å. Since there is a problem that the treatment is difficult to be less than the drinking water standard value of 0.3 mg / ℓ, the pH is treated with alkali of 9-11 to convert boric acid to gel boric acid and then to secondary boric acid. The boron compound is removed by reverse osmosis filtration.

Boric acid in water is converted to polyboric acid in the gel state by the reaction of ⑥ as alkali treatment.

B (OH) ₃ + OH ^_ → [B (OH) ₄ ] ^- → [B ₃ O ₃ (OH) ₄ ] ^- → [B ₄ O ₅ (OH) ₄ ] ^2- → [B ₅ O ₆ (OH ) ₄ ] ^- … ⑥

When the demineralized water filtered in the first reverse osmosis filtration process is supplied to the first pH adjustment process, an alkali agent (NaOH) is injected into the pH adjustment switch (pH indicating switch; pHIS) while the pH is in the range of 9-11 with a pH adjustment tank stirrer. The boron compound was converted to polyboric acid by stirring, and then the operation pressure was supplied to the secondary reverse osmosis membrane with a second reverse osmosis process feed pump at a rate of 5 to 25 kg / cm 2 to neutralize the unfiltered water containing boron compound. Afterwards, it is discharged to the original position of less than 200m below the seabed, and the filtered water, which is the deboron water filtered under the boron compound of 0.3 mg / l, the drinking water standard, is sent to the secondary pH adjustment process.

Since the inflow water flowing into the second reverse osmosis filtration process contains little salt, the membrane permeation amount of the spiral filtration membrane is 0.6 to 1.2 m 3 / m 2 even though the operating pressure is operated at a low pressure in the range of 5 to 25 kg / cm 2. In this case, the boron compound is filtered to the drinking water standard value of 0.3 mg / l or less.

In the second reverse osmosis process, even when the pH is supplied in an alkaline state of 9 to 11, scales such as CaCO ₃ and CaSO ₄ , which generate scale, were removed in the nanofiltration process and the first reverse osmosis process. It doesn't matter.

The stirring method is a propeller type stirrer, which is stirred at 180 to 360 rpm for 20 to 40 minutes. The material is stainless steel or bronze.

Example 3

In the first reverse osmosis filtration process of Example 2, demineralized water, which was filtered water, was adjusted to pH 9.5 in a first pH adjustment process to convert the boron compound in water into the form of polyboric acid, followed by Japan Toray Corporation ( Low pressure reverse osmosis membrane of Toren Co., Ltd. model number SU-710 using a spiral reverse osmosis membrane to supply the pressure to the filter membrane at 20㎏ / ㎠G, and the membrane permeate was filtered at 0.72㎥ / ㎡ · day. The flow rate of was 82% of the inflow amount, and the concentration of boron (B) in the filtered water (deboron water) was measured to 0.12 mg / l or less and 0.3 mg / l of the boron level of the beverage. Analysis of the main components of the filtered water in the second reverse osmosis filtration process is shown in Table 4 below.

Table 13 Analysis of Major Components of Filtrate (Deboron Water) in Secondary Reverse Osmosis

       Item    Filtrate of Secondary Reverse Osmosis Membrane    Remarks (Water Standard)            pH           8.2         5.8 to 8.5     Conductivity (㎲ / ㎝)         210 ¹⁷ O-NMR (㎐)          53     Redox potential value (㎷)          62     Hardness (mg / ℓ)          14.8          300 or less Na ⁺ (mg / L)          28.96          200 or less (WHO standard) Cl ^- (㎎ / ℓ)          50.82          250 or less Ca ^{2 +} (㎎ / ℓ)           0.86 Mg ^{2 +} (㎎ / ℓ)           3.08 K ⁺ (mg / L)           0.98 SiO _{2 (mg / L)}           0.25 _{^{SO 4 2 - (㎎ / ℓ}} )           3.32           200 or less     B (mg / l)           0.12             0.3 or less

II. Difference extraction stage

1. Second pH Adjustment Process

Water having a low pH thins the color of the extraction tea, and alkaline water having a high pH decreases the fragrance of the tea. Thus, deboron water filtered in the boron compound removal process by adjusting the first pH and the second reverse osmosis is performed. 5-20 wt% aqueous solution mixed with phosphorus filtered water alone or in combination of two or more of organic acids such as ascorbic acid, citric acid, citric acid, succinic acid, tartaric acid and malic acid The solution is stirred while injecting to adjust the pH to a weak acidity of 4.5 to 5.5, and then sent to the heating step.

Stirring is carried out at 180-360 RPM for 20-40 minutes of stirring time (retention time) in the range of 1-5 minutes (Q) / volume (V) by the propeller agitator of stainless steel.

2. Heating process

When the pH is adjusted to 4.5 to 5.5 in the second pH adjustment process and supplied to a heating process (heat exchanger), heat is supplied from a boiler to send the hot water heated to 50 to 85 ° C. to the differential extraction process and the filtering process. .

3. Difference Extraction and Filtering Process

Inject the processed green tea 25 綠 茶 35kg per 1㎥ (ton) of hot water heated to 50 ~ 85 ℃ in the heating process, extract green tea components for 3 ~ 15 minutes while stirring about 1 ~ 10 times Next, the drift is removed while sequentially passing through a filter of 10 to 30 meshes and 100 to 200 meshes.

4. Cooling and Centrifugation

The green tea extract from which the car shell is removed in the liquid extraction and filtering process is sent to a cooling process (preferably a plate heat exchanger), cooled to 20 ° C. or lower, and then sent to a centrifuge rotating at 3,000 to 10,000 rpm to dehydrate the solid material. , The dewatering filtrate is sent to the additive mixing process.

5. Additive Mixing Process

When the dehydration filtrate of the cooling and centrifugation in the cooling and centrifugation process is supplied to the additive mixing process, an additive is injected, and the mixture is stirred for 20 to 40 minutes to dissolve the additive to form an extraction difference, and thus, the green tea beverage manufacturing step Extraction difference is sent to the dilution and final pH adjustment process.

Additives should be free from aging and degeneration of tea ingredients, copulation and lactating action, inhibition of lipid degradation, and improvement of tea absorption efficiency. Sucrose, a nonreducing disaccharide, is a non-reducing disaccharide that does not deteriorate or denature when stored for a long period of time while masking the taste of metal due to minerals to improve taste. Inhaled trehalose, nonreducing sugar alcohol maltitol, xylitol, sorbitol, sorbitol, erythitol, lactitol, mannitol Type or a mixture of two or more types is supplied in the range of 0.002 to 1.2 wt%.

Stirring dissolves the additive by stirring the flow rate (Q) / volume (V) at a stirring time (retention time) for 20 to 40 minutes at 180 to 360 RPM with a propeller stirrer of stainless steel.

III. Green Tea Beverage Manufacturing Stage

1. Extraction dilution and final pH adjustment process

After diluting by adding 3-5 times the demineralized water from which the boron compound was removed in the secondary reverse osmosis filtration step to the extraction difference solution dissolving the additive in the additive mixing step of the difference extraction step, the pH was diluted with sodium hydrogen carbonate (NaHCO ₃ ; Aqueous solution is added and adjusted with stirring in the range of drinking water standard value 5.8-8.5 and sent to precision filtration process.

Stirring is carried out with a propeller stirrer made of stainless steel, and the flow rate (Q) / volume (V) is stirred at 180 to 360 RPM for 20 to 40 minutes with a stirring time (retention time) in a range of 1 to 5 minutes to adjust the mixing difference and pH of the extraction liquid. .

2. Precision filtration process

In the dilution and final pH adjustment process of the extraction difference dilution and final pH adjustment, the green tea beverage is microfiltration with 0.5 ~ 5μ (micron) filter cloth is sterilized after the container filling, packaging and inspection to Send to production process.

In this case, as in the ultrafiltration of drinking water, it is preferable not to filter the filter to a very high level because it can filter down a considerable amount of green tea and reduce the quality of the product.

3. Process of producing green tea drinks by filling, packing and inspecting containers after sterilization

After the microfiltration process in the microfiltration process, the green tea beverage is subjected to high temperature sterilization treatment at 120 to 135 ° C. for 0.5 to 10 minutes, and then packed into a container (can or plastic bottle) of a can or plastic bottle after inspection. Green tea drinks are prepared and shipped as products.

Example 4

In Example 3, L-ascorbic acid was added to 1㎥ (1 ton) of filtered water of secondary reverse osmosis, and the pH was adjusted to 5.2.Then, warmed to 80 ° C. Inject 30 kg of red tea, which is repeatedly cooled and dried, extract green tea components for 10 minutes while stirring 6 times, filter with 20 mesh filter, and then remove the shell while sequentially passing through 200 mesh filter. Next, the extract was cooled to 15 ° C. and then sent to a centrifuge rotating at 5,000 rpm to dehydrate the solids. 2 kg of non-reducing disaccharide trehalose was injected into 820 L of the dehydration filtrate, and stirred at 360 RPM for 30 minutes with a propeller stirrer. While dissolving the additive to produce a green tea extract 820ℓ.

The green tea extract was diluted by injecting four times the demineralized water from which the boron compound was removed in the second reverse osmosis filtration process of Example 3 into the extraction tea solution, and then the pH was adjusted while adding 7.2% aqueous sodium bicarbonate solution and stirring to 7.2. Microfiltration of the microfiltration treatment at 130 ° C. for 5 minutes and then filling into a plastic bottle followed by storage for 3 months resulted in no precipitate and no change in color and taste.

As described above, the present invention extracts green tea with a small group of small groups of water molecules in which the deep sea water is desalted, and then the green tea beverage to which non-reducing disaccharides or sugar alcohol is added is stored for a long time. It is expected to be widely used in the production of green tea drinks because of the effect of improving the refreshing taste and flavor without producing a precipitate.

Claims (4)

In the production of green tea beverages using deep sea water, The deep sea water is taken out and warmed to 20 to 30 ° C., and injected into the electronic treatment tank 1 of the small grouping process of water molecules, and the high voltage AC constant voltage is supplied from the constant voltage generator 7 to the electronic treatment tank 1. The charcoal embedded in the charcoal was applied to the stainless steel electrode 2, which was then processed, and sent to the constant voltage conductor magnetizer 10 for magnetization. The half-group width of the nuclear magnetic resonance ¹⁷ O-NMR ranged from 48 to 60 Hz. After filtration with microclustered water, the filtered water filtered by sand filtration, microfiltration, ultrafiltration alone or in combination of two or more is nanofiltration, primary reverse osmosis filtration, adjustment of primary pH and secondary reverse osmosis. Desalination step of deep sea water to make fresh water by sequentially processing permeation, The organic acid solution was injected into the fresh water filtered by the second reverse osmosis filtration of the salt removal step of the deep sea water to adjust the pH to 4.5 to 5.5. The extracted green tea extract was sent to a cooling process, where the decantation was removed from the filter, cooled, and then sent to a centrifuge. a difference extraction step of making an extraction difference by injecting in a wt% range, After diluting 3-5 times the fresh water produced by the second reverse osmosis filtration to the extraction difference made in the difference extraction step, the pH was adjusted to 5.8-8.5 by adding sodium bicarbonate aqueous solution. After the high-temperature sterilization treatment, and then packed in a container of a can or plastic bottle, and then packaged to produce a green tea beverage manufacturing a green tea beverage manufacturing method of the green tea beverage using deep sea water. The method of claim 1, wherein the deep green tea beverage is prepared by using deep sea water by omitting the small grouping process of water molecules in the salt removal step of deep sea water. The permanent magnet magnetized in the range of 12,000 to 15,000 G (Gauss) in place of the constant voltage conductive tube magnetizer 10 in the small grouping process of the water molecules in the salt removal step of the deep sea water according to claim 1 A process for producing green tea beverages using deep sea water by a treatment process. The treatment process according to claim 1, wherein a multistage electronic treatment water tank (1) having a stainless steel electrode (2) network filled with charcoal in a small grouping treatment step of water molecules in the salt removal step of deep sea water is included. To produce green tea beverages using deep sea water.

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