JP3582726B2 - Powdered green tea and method for producing powdered green tea - Google Patents

Description

【００２０】
以上の結果から明らかなように、本発明の粉状緑茶の溶解液の各含有成分量は、茶葉から抽出した抽出液の各含有成分量と比較して、多く含有されていることが顕著に現れた。
つまり、本発明の粉状緑茶は、緑茶に含有される各成分をより多量に摂取可能であることが証明された。
【００２１】
【発明の効果】
本発明は以上説明した通り、以下の優れた効果を有する。
【００２２】
請求項１の発明によれば、茶葉から通常の方法で入れた茶よりも緑茶の成分を多く含有する茶となり、しかも、湯に完全溶解する粉状緑茶である。
したがって、湯を注ぐだけで簡単に茶を入れられるインスタント緑茶となり、しかも、この茶は、緑茶の含有成分を多く摂取できる上に、茶葉から抽出した茶と同様に、違和感無くすっきりとした飲み口の茶となる。
又、インスタント緑茶として用いるものの他にも、各種食品への添加物や茶飲料の原料として使用することができるので、きわめて利用範囲の広いものである。
【００２３】
そして、請求項２の発明によれば、前記粉状緑茶を製造することができる。
又、例えば、緑茶飲料メーカーにおいては、大量の茶殻を発生させているが、本発明の製造方法は、より多くの緑茶成分を取ることができる方法であるので、本発明の製造方法により、茶殻を再利用して粉状緑茶を製造しても、少なくとも茶葉から抽出した抽出液に含有される成分と同等以上の成分を含有する粉状緑茶となることが期待できる。
そして、本発明の製造方法において発生する茶殻は天然有機物の粉状体であるので、飼料や肥料に利用する場合にも加工性が良好であり、廃棄する場合でも分解が早く進行されることが期待できる。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a powdery green tea that can be completely dissolved and a method for producing the same.
[0002]
[Background]
It is known that green tea contains components that are extremely effective for humans.
For example, typical ones include caffeine, catechin, tannin, potassium, vitamin C, E, green tea polyphenol, etc., and also have a fatigue recovery effect, a metabolism promoting effect, a diuretic promoting effect, various antibacterial effects, an antiaging effect, and the like. Has various effects.
Further, recently, it has been discovered that a component extremely effective for senility and Alzheimer's dementia is also contained, and prevention of these dementias is also expected.
[0003]
By the way, green tea is usually put in teapots and extracted with hot water at about 80 ° C. It has been found that a large amount of the above-mentioned components remain in the extracted tea leaves.
It can be said that if you use the tea leaves after extraction many times, you can get a lot of ingredients, but if you extract many times, the taste will drop, and if you replace the tea leaves each time you drink and drink many cups, it will be delicious Although it can take a lot of ingredients, it is troublesome to replace each one, and a lot of tea leaves are generated and you cannot drink many cups.
That is, at present, the components having the above-mentioned effects are not effectively and easily taken.
[0004]
In addition to green tea extracted from tea leaves, there is also powdered tea in which tea leaves are ground.
This powdered tea is put directly into a tea cup, and then poured into the cup and stirred, so that it is in a state of being dissolved in the cup. Therefore, it can be said that the components contained in one cup of tea cup are larger than those extracted from tea leaves. .
In the above description, the word "dissolved in hot water" was used. However, since tea leaves are actually ground into powder, particles are floating in the hot water.
In other words, in powdered tea, you will drink hot water with powder, so if you drink a full cup, you can ingest more components and drink hot water than if you drink the same amount extracted from tea leaves Just drink easily.
However, in the case of powdered tea, there are many cases in which the powdery tea particles floating in the hot water leave a rough feeling in the mouth and throat as a sense of incongruity.
[0005]
[Problems to be solved by the invention]
In view of this, the present invention has been made to make it possible to easily put tea and to make it possible to ingest a large amount of components of green tea, and, like tea extracted from tea leaves, to have a clear drinking mouth without discomfort. It is an object of the present invention to provide a powdery green tea that can completely dissolve and solve this problem.
Another object of the present invention is to provide a method for producing the green tea powder.
[0006]
[Means for Solving the Problems]
To achieve the above object, the present invention employs the following technical means.
[0007]
The extract liquid extracted from the tea leaves freeze-dried and pulverized is freeze-dried and pulverized into powder to obtain a completely soluble powdery green tea. (Claim 1)
[0008]
In order to produce the powdered green tea of claim 1, the following production method was employed.
[0009]
The first step of freeze-drying and crushing tea leaves.
Next, a second step of extracting an extract from the ground tea leaves.
And a third step of freeze-drying and pulverizing the extract into powder.
Powdery green tea that can be completely eluted is produced by the production method of the above steps. (Claim 2)
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
In the production method, when the tea leaves are freeze-dried and pulverized in the first step, it is preferable that the particles are pulverized into fine powder to improve the extraction efficiency of the extract in the second step.
That is, if the particles are made into a fine powder, the components of green tea are easily eluted, so that it can be expected that many components can be extracted in a short time.
[0011]
Furthermore, it is effective for extraction efficiency to soak tea leaves in hot water to extract an extract from the tea leaves, and freeze-dry and pulverize the extract and the tea leaves.
According to this method, the extract obtained by freeze-drying and pulverizing the extract is completely dissolvable, and the powdery substance that can be completely dissolved in the first step and the pulverized tea leaves obtained by pulverizing the tea leaves are mixed. can get.
That is, before the extraction of the extract in the second step, the powder is immediately completely dissolved and the extract is present, so that the extraction efficiency of the extract can be expected to be further improved.
[0012]
In the second step, after extracting the components of green tea by stirring the ground tea leaves in it, a method of obtaining only the extract by separating the extract and the ground tea leaves by precipitating the tea leaves, Similarly, a method of extracting a green tea component by stirring and then filtering to obtain only an extract, and a method of filtering and then squeezing to obtain only an extract are available.
Among the above-mentioned extraction methods, the method of squeezing the extract liquid is particularly effective in obtaining many components because the green tea component remaining in the pulverized tea leaves is further discharged.
[0013]
As described above, the extract obtained in the first and second steps contains more components than the extract directly extracted from tea leaves by a commonly used method.
Then, in the third step, the extract is freeze-dried and pulverized into a powdery form, whereby a powdery green tea containing a large amount of green tea components and being completely dissolved in hot water is produced.
[0014]
【Example】
The powdered green tea of the present invention may be a product processed as a solid as an example of the embodiment, in addition to the powdered green tea.
When processed into solid green tea, for example, by manufacturing one solid as one cup and packing it one by one, it is possible to make the product portable and convenient.
[0015]
In the case of processing into a solid, in addition to one that is dissolved in hot water and is normally drunk as tea, for example, processing into a candy can also be considered.
When processing as a candy, it is advisable to add and mix one cup of powdered green tea in a conc form with little water and add it to the candy. According to the candy processed in this way, many green tea ingredients are mixed. It is a food that contains and has a smooth mouthfeel without roughness and can be easily eaten by children and elderly people.
In addition to candy, it can be mixed and added to various foods such as ice cream, gum, cake and the like, and can be used as a raw material for a tea beverage in a container.
[0016]
In the above-mentioned second step, powdery tea husks are generated after the extraction, but since this tea husk is a natural organic substance, it can be used for fertilizer and feed.
[0017]
In the following, the amount of each component contained in the solution of the powdered green tea of the present invention and the amount of each component contained in the extract extracted from ordinary tea leaves are measured by the following method, and the measurement is performed. The results are compared and compared in Table 1.
[0018]
<Measurement method>
1. Sample: Gyokuro and Sencha Processing method:
A. The powdery green tea solution of the present invention was leached under the following conditions from freeze-dried and ground tea leaves, freeze-dried again, and dissolved in the same amount of liquid as before drying.
B. The extract extracted from tea leaves by the usual method was leached under the following conditions.
Leaching conditions:
Gyokuro. To 10 g of tea leaves, 60 ml of hot water at 60 ° C. was added and extracted for 2.5 minutes.
Sencha. To 10 g of tea leaves, 430 ml of 90 ° C hot water was added and extracted for 1 minute.
3. Analysis method a. Total polyphenols: analyzed by Foreign Dennis method and expressed as tannic acid equivalents.
b. Tannin: Analyzed by iron tartrate absorbance method, the amount of tannin was converted from the equivalent amount of ethyl gallate.
c. Catechins: analyzed by high performance liquid chromatography, and as standard products, 1. Epigallocatechin; 2. epicatechin; 3. epigallocatechin gallate; Quantification was performed using epicatechin gallate, and the total amount was defined as the total amount of catechin.
d. Caffeine: Analyzed by high-speed chromatography.
[0019]
[Table 1]

[0020]
As is clear from the above results, the content of each component of the powdered green tea solution of the present invention is remarkably large as compared with the content of each component of the extract extracted from tea leaves. Appeared.
That is, it has been proved that the powdery green tea of the present invention can consume a larger amount of each component contained in the green tea.
[0021]
【The invention's effect】
As described above, the present invention has the following excellent effects.
[0022]
According to the first aspect of the present invention, the green tea is a powdery green tea that contains more green tea components than tea put in a normal manner from tea leaves and is completely dissolved in hot water.
Therefore, it becomes an instant green tea that can be easily filled with tea just by pouring hot water.In addition, this tea can consume a lot of the components of green tea and, like tea extracted from tea leaves, a clean drinking mouth without discomfort Of tea.
Further, in addition to those used as instant green tea, it can be used as an additive to various foods or as a raw material for tea beverages, so that it is very widely used.
[0023]
According to the second aspect of the present invention, the green tea powder can be produced.
Also, for example, in a green tea beverage maker, a large amount of tea husks are generated, but the manufacturing method of the present invention is a method that can take more green tea components. Even if powdered green tea is produced by recycling, it can be expected that the powdered green tea will contain at least components equal to or more than those contained in the extract extracted from the tea leaves.
And, since the tea husks generated in the production method of the present invention is a powder of natural organic matter, the processability is good even when used for feed or fertilizer, and the decomposition proceeds quickly even when discarded. Can be expected.

Claims (2)

A completely dissolvable powdered green tea obtained by freeze-drying an extract extracted from tea leaves that have been freeze-dried and ground. Freeze-drying and crushing tea leaves,
A step of extracting the extract from the crushed tea leaves,
A step of freeze-drying the extract and pulverizing it into a powder,
A method for producing completely soluble powdery green tea comprising: