JP5307622B2 - Powdered tea and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide powdered tea without forming lumps, hardly forming precipitate, hardly discoloring and also without damaging flavor, and a method for producing the powdered tea by solving problems that the conventional powdered tea has insufficient dispersibility to water or hot water, forms often the lumps and easily precipitates, and also the inhibition of discoloration is insufficient and also by using the seeds of the tea and tea leaves. <P>SOLUTION: The processing of the tea leaves passes through the processes of cutting the tea leaves finely by 1-3 mm square (S003) and drying at a high temperature of 125-135&deg;C for approximately 30 min (S004). On the other hand, the processing of the seeds of the tea passes through each of the processes of solar drying (S005), cracking husks (S006), boiling (S007), peeling skin (S008), drying by hot air (S009) and primarily crushing (S010). At the completion stage of each of the processes, the tea leaves and flesh powder of the seeds of the tea are mixed by blending (S011) to aim at the uniformity. Then, by performing crushing (S012) and mixing with air at a normal temperature (S013), the objective powdered tea is finished. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a powdered tea and a method for producing the same, and more particularly to a powdered tea using tea seeds containing abundant active ingredients such as oleic acid and catechin and a method for producing the same.

  Green tea has long been known to have various benefits. Tea leaves are rich in catechins, vitamins, and minerals such as iron and calcium, and also contain a large amount of chlorophyll and dietary fiber. Yes. In addition, in the case of green tea, not only the usual way of drinking tea leaves extracted with warm water and drinking the extract, but tea is also finely powdered and dispersed in hot water like green tea, and the tea itself is ingested. ing. Such tea beverages using powdered tea are not only effective in extracting active ingredients contained in tea, but also not having tea husks as waste, and are excellent in both flavor and taste.

  The method for producing powdered tea is basically a method in which dried tea leaves are made into a powder of about 10 microns using a milling machine or the like. Various methods are used to improve the storage stability of tea, the dispersibility of water and hot water, etc. A method has been proposed. For example, Patent Document 1 proposes a method for easily dispersing and suspending water or hot water without causing lumps. Patent Document 2 proposes a method for suppressing fading of green tea without impairing the active ingredients of green tea.

JP 2006-296341 A JP 2005-117968 A

  However, the technique disclosed in the above-mentioned document has a problem that dispersibility in water and hot water is not yet sufficient, and often causes lumps and precipitates. In addition, the suppression of fading is insufficient. In order to solve such problems, the present invention pulverizes with tea seeds and tea leaves to produce a powdered tea that does not cause lumps, hardly settles, does not discolor, and does not impair the flavor, and a method for producing the same. The purpose is to provide.

In order to solve the above problems, the present invention is a powdered tea, which is a mixture of tea leaves and pulp of tea seeds, the weight ratio of tea leaves: pulp = 90:10 to 95: 5, and tea seeds The tea seeds are primarily pulverized in order to blend them with the tea leaves , and the tea leaves are coated with the oil contained in the pulp. The crushed tea leaves and pulp are mixed with air using a sieve of about 20 mesh. Furthermore, it is a method for producing powdered tea, characterized by comprising a step of pulverizing a mixture of tea leaves and pulp of tea seeds and then mixing with air using a sieve of about 20 mesh. Moreover, it is a manufacturing method of powder tea, Comprising: The process of cut | disconnecting a tea leaf into 1-3 square mm, The process of drying at 125-135 degreeC, The process of drying sun of a sun, and a shell A step of taking out the pulp, a step of boiling the pulp in boiling water, a step of peeling the skin in cold water, a step of drying at about 75 ° C., and a step of primary grinding A step of mixing the tea leaves and the pulp with a weight ratio of tea leaves: fruit pulp = 90: 10 to 95: 5, then crushing the mixture of the tea leaves and the pulp, And a step of mixing with air using a sieve of about 20 mesh.

  According to the present invention, by pulverizing tea seeds and tea leaves using an airflow pulverizer, it is possible to obtain a powdered tea that does not cause lumps, hardly settles, is not easily discolored, and does not impair the flavor.

It is a manufacturing process of powdered tea. It is a side view of an aeration machine.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 shows a process for producing powdered tea. Crude tea is made by picking tea leaves from the shoots, steaming them, and kneading them. In the combination (S001), blending is performed in order to keep the quality uniform. In sieving (S002), the exudates such as foliage are removed. In the cutting (S003), it is cut finely into 1 to 3 mm square. If it is made finer than 1 mm square, it will be excessively roasted in the next heating and drying step, and if it is larger than 3 mm square, no flavor is produced. In the flame drying (S004), drying is performed at a high temperature of 125 to 135 ° C. for about 30 minutes. In this process, a so-called continuous drying method is used in which tea leaves are spread on a belt conveyor and dried with hot air while passing through the dryer while being folded. If the temperature is lower than 125 ° C., the fragrance is difficult to be attached, and if the temperature is higher than 135 ° C., there is a risk of scorching. By passing through a fire-drying process, the moisture content can be kept low at 2-3%, and high quality can be maintained.

  On the other hand, the process of processing tea seeds is as follows. After harvesting the tea seeds, the seeds are dried in the sun (S005) for about one week, and then dried with sufficient water. In shell splitting (S006), the pulp that is splitting the shell is taken out. In boiling (S007), the pulp is put into boiling water for about 5 minutes. In the peeling (S008), the thin skin is peeled while rotating the pulp in cold water. In hot air drying (S009), drying is performed at about 75 ° C. for about 5 minutes. Next, primary pulverization (S010) is performed to blend with tea leaves.

In this way, at the stage where the tea leaf processing step and the tea seed processing step are completed, the combination (S011
) Mix the tea leaves that have been fired and dried and the pulp powder, to achieve uniformity. In addition, as for the weight ratio of a tea leaf and pulp, it is desirable that tea leaf: fruit pulp = 90: 10-95: 5. Next, in the pulverization (S012), the tea leaves and the pulp are put together in a pulverizer to coat the tea leaves with the oil contained in the pulp, thereby confining the taste and aroma.

  Thereafter, air is mixed at room temperature (S013). In this process, the air mixing machine 1 shown in FIG. 2 is used. A mixture of the crushed tea leaves and pulp is introduced from the inlet 2, and the sieve 3 is moved left and right to give vibration. By using a mesh 4 of about 20 mesh, the mixture of air, tea leaves and pulp is finely screened to bring out a flavorful flavor. The mixture is collected in the tray 5 to complete the intended powdered tea.

Table 1 compares the characteristics of the powdered tea of the present invention (the present invention) and the powdered tea with only tea leaves (comparative example). Compared with the comparative example, the powdered tea of the present invention does not cause lumps, hardly precipitates, and hardly discolors.

1 Air mixing machine 2 Input port 3 Sieve 4 Net 5 Tray

Claims (4)

It is a mixture of tea leaves and pulp of tea seeds, the weight ratio is tea leaves: pulp = 90: 10-95: 5 , tea seeds are primarily ground to blend tea seeds with tea leaves, The tea powder is coated with oil contained in the pulp . The powdered tea according to claim 1 , wherein the ground tea leaves and pulp are mixed with air using a sieve of about 20 mesh. 3. The method for producing powdered tea according to claim 1 or 2, comprising a step of pulverizing a mixture of tea leaves and tea seed pulp and then mixing with air using a sieve of about 20 mesh. A method for producing powdered tea. It is a manufacturing method of the powder tea of Claim 1 or 2 , Comprising: The process which cut | disconnects a tea leaf into 1-3 square mm, and the process of drying at 125-135 degreeC, The seed of tea is a sun. A step of drying, a step of removing the pulp from the shell, a step of boiling the pulp in boiling water, a step of peeling the skin in cold water, a step of drying at about 75 ° C., and A step of primary pulverizing, the step of mixing the tea leaves and the pulp with a weight ratio of tea leaves: pulp = 90:10 to 95: 5, and then the mixture of the tea leaves and the pulp A method for producing powdered tea comprising: a step of pulverizing, and a step of mixing with air using a sieve of about 20 mesh.