KR101542227B1 - The manufacturing method of soluble tablet tea - Google Patents

Abstract

The present invention relates to a process for producing coffee, green tea, oolong tea and herbal tea in the form of a soluble tablet.
According to the present invention as described above, the taste, aroma, and functional components of tea can be consumed constantly irrespective of the extraction time or water temperature, and the taste and flavor inherent in tea are not lost during the processing, It is fast and completely dissolved in water, so it has soft texture and easy to drink.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tablet-

The present invention relates to a method for producing a soluble tablet tea, and more particularly, to a method for producing a tablet-like coffee, green tea, black tea, oolong tea and herbal tea which are dissolved immediately upon introduction into water.

As the standard of living improves and the desire for a healthy life increases, interest in high functional foods is increasing. In addition, as the life is getting richer, mental and economical allowances are available, and due to social activities, interpersonal relationships become more diverse and frequent. have. Typical examples are coffee, green tea, black tea, oolong tea and herbal tea.

Coffee is extracted from a coffee tree by harvesting green beans, roasted after processing, and then mixed with one or two or more kinds of ground coffee powder. Depending on the taste, milk powder or sugar may be added to drink.

Green tea, black tea, and oolong tea made from leaves of tea are classified according to the fermentation process in which the tannin components in the tea leaves are oxidized by the oxidizing enzyme polyphenol oxidase to give a unique flavor, taste and color of water. Green tea is fermented tea which does not have oxidation fermentation stage, black tea is fermented tea which is 85 ~ 100% fermented after several hours of oxidation fermentation. Oolong tea is fermented tea having fermentation time of 10 ~ 65% .

A herbal tea is a herb extracted from a herb, which is a plant that uses flowers, leaves, stems, roots or seeds as medicine or spices.

In the present invention, the present invention relates to a method for producing a plant extract, which comprises the steps of: It is offered in the form of instant tea for drinking.

Recently, in order to improve the disadvantage that the particles are not completely dissolved due to the cohesion between particles, a tablet type tea having improved dispersibility and enhanced convenience of easy to carry and easy to drink has been developed.

However, not only the taste and flavor of the tea is lost while the above-described processing is performed, but also there is a concern that the tea bag, which is one of the packaging forms, is dissolved in chemical components when it is exposed to water, and is not good for health.

The taste, flavor, and functional components of the conventional tea are different depending on the extraction time of the tea and the temperature of the tea. For example, if the tea is to be removed at a low temperature, it will take a considerable amount of time to extract the useful components of the tea from the tea unless it is soaked for a long time.

Korean Patent No. 10-0437724 (method for producing granular tea using powdered green tea) provides a method for preparing a granular tea by mixing a green tea concentrate or an edible powder capable of maintaining viscosity with a powdered green tea and adding an excipient for granulation , It does not dissolve completely in water, so the texture is not so smooth and the taste is not constant according to the level due to precipitation, and the inherent taste and flavor of the tea can not be maintained.

Korean Patent No. 10-0893046 (a method of manufacturing a tablet using green tea seed extract) extracts an oil component from the seeds of green tea, recovers the degreased powder, pulverizes it, and then concentrates it by low temperature decompression method through hot water extraction, The present invention also provides a method for preparing a tablet by spray drying and tableting by adding dextrin to a concentrate obtained by separating a fat-soluble ingredient through the above process, and Korean Patent No. 10-0500438 The present invention provides a method for manufacturing a fuel cell which is molded into a ring through a long cycle, a truncation, a circulation and a drying step. However, the former extracts the components contained in the green tea seed, the latter produces a kneaded product in the form of a noodle, Type tea is produced, the flavor of the tea can not be preserved, and the instant melting ability Mothada not provide the convenience of a tablet form.

In the case of a tablet-type tea, the prior art is produced by simply compressing a powder obtained by pulverizing a dried material, thereby leaving a residue in the residue, resulting in poor solubility, and the taste and flavor can not be preserved during production. In addition, the present invention provides a tablet type in which a firmness is not broken, but it is not a ready-to-use soluble tablet type, so it is necessary to use a tool such as a spoon, There is also something to eat like a pill.

In addition, the conventional tablet type tea has mainly been developed mainly for green tea, and the development of coffee, tea, oolong tea and herbal tea which are widely used is insufficient. Especially, in the case of coffee, the freshness after the processing was reduced and there was a limit to the production of instant coffee.

It is an object of the present invention to provide a tea composition which enables the taste, flavor and functional ingredients of a tea to be consumed constantly irrespective of the extraction time or the temperature of the water and can maintain the flavor and flavor And to provide a method of manufacturing a usable tablet car.

Another object of the present invention is to provide a tea bag which is free from inconvenience of removing a package such as a tea bag when a tea is to be consumed and is quickly and completely dissolved in water without a residue without using a tool such as a spoon, And a method for manufacturing a soluble tablet car which is easy to drink without feeling.

In order to achieve the above object, the present invention provides (1) a process for producing a coffee bean, which is selected from the group consisting of a flower, a leaf, a stem, a root and a seed of a herb as a raw material of ground coffee bean, green tea leaf, black tea leaf, oolong tea leaf tea and herbal tea Extracting any one of the hot water; (2) concentrating the extract obtained in the step (1); (3) lyophilizing the concentrated liquid concentrated in the step (2); (4) granulating the freeze-dried dried material in the step (3); And (5) adding sodium hydrogencarbonate and citric acid to the powder granulated in the step (4), mixing and shaping the mixture into a tablet form; The present invention provides a method for manufacturing a soluble tablet car comprising the steps of:

In the step (1), any one selected from the group consisting of flowers, leaves, stems, roots and seeds of the herb as a raw material of ground coffee beans, green tea leaves, black tea leaves, oolong tea leaves, To 72 ° C with 1: 7 to 10 (w / v) water.

In the step (2), the concentrating method is characterized by heating and concentrating at 85 to 100 캜 so as to be 8 to 14% of the total amount of the extract extracted in the step (1).

In the step (3), the freeze-drying method is characterized by freeze-drying at -40 to -30 ° C so that the moisture content is 2 to 6%.

In the step (4), granulation is carried out by spraying water corresponding to 2/100 to 4/100 of the weight of the dried material.

The molding method in the step (5) is characterized in that sodium hydrogen carbonate and citric acid are added to the granulated powder and mixed at 3 to 10 캜 to form tablets.

At least one kind of ingredient selected from the group consisting of an excipient, a sweetener, a powdered milk, a flavor, a dye, a wetting agent and an antiseptic is added to the granulated powder in the step (5) Sodium bicarbonate and citric acid are added to the tea mixture, followed by secondary mixing at 3 to 10 캜 to form tablets.

In the case of preparing a soluble tablet tea by pulverizing the coffee beans in the step (1), 10 to 15% by weight of the powder granulated in the step (5) is mixed with 25 to 35% To 40% by weight, and the mixture is firstly mixed at 20 to 40 占 폚. Then, 15 to 25% by weight of sodium hydrogencarbonate and 3 to 7% by weight of citric acid are added to the primary mixture, And is molded into a tablet shape.

When a soluble tablet tea is prepared by extracting green tea leaves, black tea leaves or oolong tea leaves in step (1), 60 to 70% by weight of the powder granulated in the step (6) % Of sucralose and 2 to 4% by weight of sucralose are added, and the mixture is firstly mixed at 20 to 40 캜. To the primary mixture, 15 to 25% by weight of sodium hydrogencarbonate and 3 to 7% And the mixture is subjected to secondary mixing to form a tablet.

In the case of preparing a soluble tablet tea by extracting flowers, leaves, stems, roots or seeds of a herb as a raw material of the herbal tea in the step (1), the powder granulated in the step (6) % Of sodium hydrogencarbonate and 3 to 10% by weight of citric acid are added to the primary mixture, and 3 to 10% by weight of citric acid is added to the primary mixture. Lt; 0 > C and molded into a tablet shape.

As described above, according to the present invention, by concentrating a previously dissolved substance, the product can be quickly dissolved in cold water without any residue to be free from sediment, smooth texture and excellent commercial properties, It is possible to drink without drinking.

In addition, by performing low-temperature extraction and indirect-heating-type hot air drying to minimize the use of sodium hydrogencarbonate in the molding step and mixing at low temperature to minimize the reaction with citric acid, And the taste and flavor inherent to tea can be preserved.

In addition, not only green tea, coffee, tea, oolong tea and herbal tea is expanded to provide taste and flavor preserved tea in the form of a soluble tablet, small and easy to carry, water and easy to drink anywhere, anytime, anywhere The present invention has the effect of reducing the generation of waste caused by the disposable packaging and reducing the production cost.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram illustrating a method of making a soluble tablet car.
2 is a photograph showing a soluble tablet car.
Fig. 3 shows a state in which a soluble tablet tea is dissolved in water.

Hereinafter, the present invention will be described in detail.

Tea is all the beverages that are hot or cold drinks, which are moon, seeds, roots, or seeds of flowers, fruits, leaves, roots, rosemary, peppermint, rooibos, jasmine, chamomile, , Basil and lemon grass.

The present invention relates to (1) a step of hot-water extracting any one selected from the group consisting of flowers, leaves, stems, roots and seeds of a herb as a raw material of ground coffee beans, green tea leaves, black tea leaves, oolong tea leaves and herbal tea ; (2) concentrating the extract obtained in the step (1); (3) lyophilizing the concentrated liquid concentrated in the step (2); (4) granulating the freeze-dried dried material in the step (3); And (5) adding sodium hydrogencarbonate and citric acid to the powder granulated in the step (4), mixing and shaping the mixture into a tablet form; The present invention provides a method for manufacturing a soluble tablet car comprising the steps of:

In the step (1), any one selected from the group consisting of flowers, leaves, stems, roots and seeds of the herb as a raw material of ground coffee beans, green tea leaves, black tea leaves, oolong tea leaves, To 72 ° C and 1: 7 to 10 (w / v), respectively.

It is most effective to perform hot water extraction at a temperature of 62 to 72 ° C for 10 to 30 hours, preferably for 16 to 24 hours. When extracting at a temperature of 72 ° C or more, fragrance evaporates, resulting in poor product quality and taste. In order to prevent evaporation of the fragrance, it is better to seal the upper part of the extraction process and maximize the air contact surface of the upper part to cool and condense the water vapor to discharge the condensed water vapor through the water catch groove.

When the low temperature extraction is carried out in the same manner as described above, the taste and flavor are softened and the amount of caffeine can be reduced.

In the step (2), it is preferable that the concentration method is performed by heating and concentrating the mixture at 85 to 100 캜 so as to be 8 to 14% of the total amount of the extract extracted in the step (1).

Concentration at 90 to 95 캜 for 20 to 28 hours, preferably 23 to 25 hours, shows an optimum effect, and when the concentration exceeds 100 캜, the total amount of fragrance is reduced by 20% or more due to rapid volatilization As the flavor changes, the merchantability drops.

In addition, it is optimum to effect the concentration by heating to 10 to 12% of the total amount of the extracted liquid. Since the content of each component such as moisture and fiber varies depending on the extract, the residual amount is 10 to 12% in the freeze- . If the residual amount is large, the freeze-drying time is long and the cost is increased. If the residual amount is small, burning may occur due to heat, so the residual amount should be adjusted within the range of 8 to 14%.

In the step (3), the freeze-drying method is preferably performed by freeze-drying at -40 to -30 ° C so that the moisture content is 2 to 6%.

Freeze-drying is carried out so that the moisture content becomes about 4% at -30 캜 or lower, 300 mbar or higher for 15 to 25 hours, preferably 18 to 22 hours. If the moisture content is high, it may be desirable to reduce the water content to 4% or less, since the molded tablet may show broken and cut marks.

In this case, it is preferable that the method further comprises a step of indirectly heating the freeze-dried dried material by hot air for 2 to 4 hours so that the surface temperature becomes 50 to 80 ° C and the moisture content becomes 3 to 4%.

In order to prevent denaturation of the product due to high temperature and to prevent volatilization of the fragrance, it is recommended to repeat the drying for 45 minutes with hot air and stop for 15 minutes. In order to minimize the water content before the granule type, the powder is continuously mixed through the screw, Is evaporated evenly and the hot air drying is performed so that the moisture content in the powder becomes about 3%. Hot air passed through a heater maintained at a temperature of 60 to 120 DEG C can be blown at a wind speed of 1 to 2 m / sec and hot-air dried.

Reducing the moisture content to about 3% by freeze drying alone may reduce the efficiency in terms of time efficiency, and when the hot air is dried by the direct heating method, the product may be denatured by the direct heat. It is possible to prevent loss of flavor due to excessive hot air drying.

In the step (4), it is preferable that granulation is performed by spraying water corresponding to 2/100 to 4/100 of the weight of the dried material.

It is possible to maximize the pore size through granulation process in which the dry powder is dispersed in the air and spray water to reduce the penetration time of the water when the product is obtained in the water and to accelerate the dissolution speed of the tissue after the penetration. The water content in the powder reduced to about 3% due to the hot air drying is increased to about 5% by granulating the powder corresponding to 3/100 of the weight of the powder by 1 mm sieve.

In the step (5), it is preferable to add sodium hydrogencarbonate and citric acid to the granulated powder and mix them at 3 to 10 캜 to form tablets.

Sodium bicarbonate and citric acid serve as a disintegrating agent which rapidly dissolves in the water through neutralization. Unlike the prior art, according to the present invention, a sodium bicarbonate equivalent to about 20% by weight Can exhibit an excellent solubility effect without being offensive even with a small content of water.

At least one kind of ingredient selected from the group consisting of an excipient, a sweetener, a powdered milk, a flavor, a dye, a wetting agent and an antiseptic is added to the granulated powder in the step (5) It is preferable to add sodium hydrogencarbonate and citric acid to the tea mixture and form a tablet by secondary mixing at 3 to 10 캜.

Additives commonly used in the food and beverage field may be further added as a raw material, and a lubricant or a coating agent may be added.

The first mixing at 25-35 째 C and the second mixing at 5-8 째 C show the optimum effect and the reaction between sodium hydrogencarbonate and citric acid is minimized by adding sodium hydrogencarbonate and citric acid lastly and mixing at low temperature It is possible to prevent denaturation and to minimize disintegration due to internal moisture after mixing and mixing processes. When citric acid is mixed in the primary mixing process, it may be hardened or denatured by other constituents or moisture.

In the case of preparing a soluble tablet tea by pulverizing the coffee beans in the step (1), 10 to 15% by weight of the powder granulated in the step (5) is mixed with 25 to 35% To 40% by weight, and the mixture is firstly mixed at 20 to 40 占 폚. Then, 15 to 25% by weight of sodium hydrogencarbonate and 3 to 7% by weight of citric acid are added to the primary mixture, It can be molded into a tablet form.

When a soluble tablet tea is prepared by extracting the coffee beans pulverized in the step (1) without adding a supplementary ingredient such as powdered milk and sugar, 30 to 40% by weight of powder granulated in the step (5) 50 to 60% by weight of citric acid and 10 to 20% by weight of citric acid may be added and mixed at 3 to 10 캜 to form tablets.

When a soluble tablet tea is prepared by extracting green tea leaves, black tea leaves or oolong tea leaves in step (1), 60 to 70% by weight of the powder granulated in the step (6) % Of sucralose and 2 to 4% by weight of sucralose are added, and the mixture is firstly mixed at 20 to 40 캜. To the primary mixture, 15 to 25% by weight of sodium hydrogencarbonate and 3 to 7% They can be mixed with each other and molded into a tablet shape.

In the case of preparing a soluble tablet tea by extracting flowers, leaves, stems, roots or seeds of a herb as a raw material of the herbal tea in the step (1), the powder granulated in the step (6) % Of sodium hydrogencarbonate and 3 to 10% by weight of citric acid are added to the primary mixture, and 3 to 10% by weight of citric acid is added to the primary mixture. Lt; 0 > C, to form tablets.

In the method of manufacturing a soluble tablet car according to the present invention, tableting can be performed in a general pharmaceutical or food factory, and it is preferable to tablet the tablet tablet at a high pressure and a low speed in order to form the tablets in the form of a dropped tablet.

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these embodiments are merely illustrative of the present invention and that the scope of the present invention is not construed as being limited by these embodiments.

Example 1. Preparation of soluble tablet coffee

12 g of roasted and ground coffee bean was added to 100 L of hot water at 50 캜 and extracted for 18 hours. At this time, the upper part was sealed and the air contact surface of the upper part was maximized to cool and condense the water vapor, thereby discharging condensed water vapor through the water receiving groove.

The extracted extract was heated at 90 ° C. for 24 hours to be concentrated to 10% of the total amount of the extract, and the concentrate was lyophilized at -30 ° C. or lower and 300 mbar or higher for 20 hours to obtain a powder having a moisture content of 4% .

Before making the lyophilized powder into a granular type, the surface temperature of the powder was adjusted to 60 to 80 캜 by an indirect heating method so that the water content in the powder was 3% in order to minimize the moisture content, followed by hot air drying. In order to prevent denaturation and evaporation of product due to high temperature, it was dried for 45 minutes with hot air for 15 minutes and for a total of 3 hours. During the drying process, the powder was continuously mixed through a screw, .

The hot air dried powder was dispersed in the air and sprayed with water to maximize the pore size, thereby reducing the penetration time of the water and accelerating dissolution of the tissue after the penetration. The powder falling on the sieve of 1 mm was granulated by finely spraying water corresponding to 3/100 of the weight of the powder.

To 32.5% by weight of the granulated powder, 54% by weight of sodium hydrogencarbonate and 13.5% by weight of citric acid were added and mixed at 5 to 8 캜.

Thereafter, a soluble tablet type such as americano without added milk (cream, powdered milk) having a weight of 800 mg, a diameter of 1.2 cm, and a thickness of 4 mm was pressed at a high temperature and a low speed at a temperature of about 23 ° C. and a relative humidity of about 25% Of black coffee was prepared.

As a result, when 0.8 g of the prepared tablet tea was added to 200 ml of water at 25 캜, bubbles were generated and completely dissolved within 15 seconds.

As another example of coffee, white coffee in the form of a soluble tablet such as a coffee mix with milk (cream, powdered milk) was prepared as follows.

28% by weight of powdered milk and 35% by weight of sugar were added to 12% by weight of granulated powder before adding sodium bicarbonate and citric acid to the prepared granulated powder, And the mixture was firstly mixed at 30 DEG C, and then 20 wt% of sodium hydrogencarbonate and 5 wt% of citric acid were added to the primary mixture, followed by secondary mixing at 5 to 8 DEG C.

Example 2. Preparation of soluble tablet green tea, black tea or oolong tea

14 g of green tea leaves, black tea leaves or oolong tea leaves were added to 100 L of hot water at 50 ° C and extracted for 18 hours.

Further, 4% by weight of dextrin, 3% by weight of sucralose, 1% by weight of perfume and 2% by weight of pigment were added to 65% by weight of the granulated powder thus prepared, and the mixture was primary mixed at 30 DEG C, 20% by weight of sodium hydrogencarbonate and 5% by weight of citric acid were added to the mixture, followed by secondary mixing at 5 to 8 占 폚.

Table 1 shows the sensory evaluation of the soluble tablet type green tea prepared in Example 2 above. A total of 200 people were surveyed at a ratio of 1: 1 to those who preferred green tea and those who did not. 1 is very unsatisfactory, 2 is unsatisfactory, 3 is moderate, 4 is satisfactory, 5 is very satisfactory, and the mean value is shown.

Example 3 Preparation of a Soluble Tablet Herb Tea

14 g of lavender was added to 100 L of hot water at 50 DEG C and extracted for 18 hours in order to prepare lavender tea, which is one of the herbal tea.

Further, 5% by weight of dextrin was added to 65% by weight of the granulated powder, and the mixture was first mixed at 30 DEG C, and then 20% by weight of sodium hydrogencarbonate and 10% by weight of citric acid were added to the primary mixture Lt; RTI ID = 0.0 > 8 C < / RTI >

Having described specific portions of the present invention in detail, it will be apparent to those skilled in the art that this specific description is only a preferred embodiment and that the scope of the present invention is not limited thereby. It will be obvious. Accordingly, the actual scope of the present invention will be defined by the appended claims and their equivalents.

Claims (10)

(1) Any one selected from the group consisting of flowers, leaves, stems, roots and seeds of the herb which is a raw material of ground coffee beans, green tea leaves, black tea leaves, oolong tea leaves and herbal tea, 1: 7 to 10 (w / v) and hydrothermally extracted for 16 to 24 hours;
(2) concentrating the mixture at 90 to 95 캜 for 23 to 25 hours so as to be 8 to 14% of the total amount of the extract liquid extracted in the step (1);
(3) The concentrated liquid concentrated in the step (2) is lyophilized, and the lyophilized dried product is subjected to hot air drying by indirect heating for 2 to 4 hours so that the surface temperature becomes 50 to 80 캜, Followed by repeating a 15 minute stoppage so that the moisture content is 2 to 6%;
(4) granulating by spraying water corresponding to 2/100 to 4/100 of the weight of the freeze-dried dried product in the step (3); And
(5) At least one kind of ingredient selected from the group consisting of excipients, sweeteners, powdered milk, flavors, pigments, humectants and preservatives is added to the powder granulated in the step (4) , Sodium bicarbonate and citric acid are added to the primary mixture, and the mixture is secondarily mixed at 5 to 8 占 폚, and powder and a sub ingredient are granulated with 15 to 25% by weight of sodium hydrogencarbonate and 3 to 7% To form a tablet. ≪ Desc / Clms Page number 15 > delete delete The method according to claim 1,
Wherein the freeze-drying is performed at -40 to -30 占 폚 in the step (3).
delete delete The method according to claim 1,
In the step (3), the hot air drying is performed by applying hot air passed through a heater maintained at 60 to 120 ° C at an air velocity of 1 to 2 m / sec. delete delete delete

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