JPH06261686A - Method for extracting ptisan - Google Patents

Abstract

PURPOSE:To obtain a method for extracting ptisan assuming a refreshing taste. CONSTITUTION:This method for obtaining an extract solution of ptisan grains 2 is to place the ptisan grains 2 to be a raw material in an extracting tank 1 and then pour hot water into the extracting tank 1. The hot water 3 is passed through the ptisan grains 2 in the extracting tank 1 for a prescribed time before starting the extraction of the ptisan grains 2 to discharge the hot water 3. The extraction of the ptisan grains 2 with new hot water 4 for extraction is then carried out to recover the objective ptisan.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

TECHNICAL FIELD The present invention relates to an industrial method for extracting barley tea.

[0002]

BACKGROUND OF THE INVENTION When manufacturing a barley tea beverage, the raw material barley tea grains are put into an extraction tank or a tower-shaped extraction tank,
Hot water for extraction is injected into this to contact the barley tea grains with the hot water, and the extract of barley tea grains is advanced into the extract. After a lapse of a certain time, for example, in the case of a tank-shaped extraction device, the whole tank is turned upside down, and in the case of a tower-shaped extraction device, the extraction liquid is collected from below so as to recover the extraction liquid.

From the component point of view, the extraction of barley tea grains carried out in such a process is nothing but the dissolution of starch from the raw material of barley tea. It is necessary to elute the starch with hot water at a temperature of at least 65 ° C. or higher and for a proper time. However, in the conventional method, the hot water supplied at the beginning is used to raise the product temperature of the barley tea grains, and the hot water temperature lowers, so that the elution of the starch, which is a component of the barley tea grains, occurs. Not done enough.

The barley tea grains used as a raw material are produced by roasting barley, so that during the roasting, the starch melts into caramel and adheres to the surface of the barley tea grains. In addition to this, dust particles also adhere. . When making barley tea in a general household, it is normal to extract such barley tea grains to which caramel and dust particles are attached and to drink it as a barley tea with a slight taste and dislike. . However, for example, when commercializing barley tea canned beverages, it has a higher quality than household taste barley tea, and it is difficult to develop the market of barley tea as canned beverages unless barley tea with a better taste is provided. Therefore, as a barley tea having a taste that is different from the conventional home-brewed barley tea, the development of barley tea extracted using barley tea grains free of caramel and dust particles has been an issue.

[0005]

[Technical Items Tried to Develop] The present invention has been made based on such a background, and it is necessary to remove substances causing a taste and dislike from the raw barley tea grains before the extraction of the extract, and before the extraction. This is an attempt to develop a barley tea extraction method that can solve both the problems of raising the product temperature of barley tea grains at the same time.

[0006]

[Constitution of the invention]

[Means for Achieving the Purpose] That is, the first invention of the present invention relating to the present application is a method for obtaining an extract of barley tea grains by placing barley tea grains as a raw material in an extraction tank and pouring hot water into the extraction tank. Before starting extraction of barley tea grains, hot water is passed through the barley tea grains in the extraction tank for a certain period of time, and after this hot water is discharged, the barley tea grains are extracted and recovered with new hot water for extraction. It is a feature.

The barley tea extraction method according to the second invention of the present application is a method in which barley tea grains as a raw material are placed in an extraction tank and hot water is poured into the extraction tank to obtain an extract of barley tea grains. Before starting the extraction of
It is characterized in that ˜3 times the weight of hot water is passed through the barley tea grains in the extraction tank, the hot water is discharged, and then the barley tea grains are extracted and recovered with new hot water for extraction.

Furthermore, in the barley tea extraction method according to the third invention of the present application, in addition to the above requirements, the temperature of the hot water is 90%.
It is characterized in that the temperature is not lower than ° C. The above objects are intended to be achieved by these inventions.

The present invention will be described in more detail below. First, the extraction tank used in the method of the present invention preferably has a structure that allows stepwise injection and discharge of hot water. Specifically, it is preferable to use a tower-shaped extractor. The barley tea grain which is the raw material is put into such an extraction tank. The barley tea grains used as a raw material can be the same as those used for extraction in the past.

Next, the first hot water is injected into the extraction tank, and the temperature of the hot water is 90 ° C. or higher. This is because caramel and dust particles adhering to barley tea grains are dissolved and washed away with hot water of 90 ° C. or more, and when hot water for extraction is injected later, the starch can be sufficiently eluted at that time so that It is significant to raise the product temperature to 65 ° C or higher. The hot water initially injected for such a purpose is not treated as a product but is discharged as it is after passing through the extraction tank and discarded.

If the amount of hot water to be initially injected is small, the above object cannot be achieved, and if the amount is large, the barley tea which is the original product will be discharged. Is preferably about 0.5 to 3 times the weight of the barley tea grains. Also, rather than injecting only this much hot water at once, it takes time to dissolve caramel and dust particles and to heat the inside of the barley tea grains sufficiently. The hot water may be injected by a shower method so that the hot water is evenly supplied to the barley tea grains.

Next, after the first hot water is almost discharged, the second hot water injection is carried out while the temperature of the barley tea grains is not lowered. The hot water from the second time onward is for extracting barley tea into a product, and its temperature is 90 ° C. market in order to efficiently extract the extract of barley tea.

The barley tea extracted by the second hot water is collected and filled in a can or the like to obtain a product. If extraction from barley tea grains is possible, the third and subsequent injections of hot water or the second injection may be continuously performed.

[0014]

In the present invention, before collecting the extract of barley tea grains, hot water is passed through the barley tea grains in the extraction tank for a certain period of time or a certain amount of water, and the hot water is discharged. Since it was extracted and collected, the first hot water can wash away the caramel and dust particles that cause an unpleasant taste and a bad taste from the barley tea grains, and increase the temperature of the barley tea grains to improve the elution of the demp. it can.

[0015]

EXAMPLE As shown in FIG. 1 (a), 360 kg of barley tea grains 2 as a raw material were put in a tower-shaped extraction tank 1, and hot water 3 at 98 ° C. was showered in an amount of 360 liters, which is equivalent to one weight of the barley tea grains. Inject into the extraction tank 1 by the method. The hot water 3 is immediately discharged from the lower part of the extraction tank 1 and discarded.
Next, as shown in FIG. 1B, 1080 liters of hot water 4 for extraction at 98 ° C., which is three times as much as the weight of the barley tea grain 2, is poured into the extraction tank by a shower method. Where 10
After the holding time of 1 minute, the extraction liquid is taken out from the lower part of the extraction tank 1 and, at the same time, the extraction tank 1 is showered.
The hot water 4 for extraction is injected into the tank, and when the extraction liquid from the lower part of the extraction tank 1 is recovered in an amount of 3600 liters, the extraction is completed.

[0016]

COMPARATIVE EXAMPLE A comparative example using the conventional method is as follows.
First, 360 k of raw barley tea grains are placed in a tower-shaped extraction tank 1.
g, and 1080 liters of hot water 4 for extraction at 98 ° C., which is equivalent to 3 times the weight of barley tea grains, is poured into the extraction tank by the shower method. Here, after a holding time of 10 minutes, it is taken out from the lower part of the extraction tank 1 as an extraction liquid, and at the same time, 4 hot water for extraction is injected into the extraction tank by the shower method, and the extraction liquid from the lower part of the extraction tank 1 is continuously supplied to 3600 The extraction is completed when the liter is collected.

[0017]

EFFECTS OF THE INVENTION The barley tea extraction method of the present invention is characterized in that before starting the extraction of barley tea grains 2, the hot water 3 is passed through the barley tea grains 2 in the extraction tank 1 for a certain period of time and the hot water 3 is discharged. Since the barley tea grains 2 are extracted and recovered with the hot water 4 for extraction, the first hot water 3 wash away the caramel and dust particles that cause the taste and dislike from the barley tea grains 2 and have no miscellaneous taste. A slightly sweet and refreshing barley tea is obtained. Further, since the product temperature of the barley tea grain 2 is increased by the first hot water 3, the starch of the barley tea grain can be satisfactorily eluted when the hot water 4 for extraction after the second time is injected, and efficient extraction is realized. it can.

[0018]

[Table 1]

As shown in Table 1, in view of the amount of extracted solid, it is considered that even if the first hot water 3 is discarded, the influence on the final product is small.

Furthermore, the products of the conventional extraction technology and the products of the extraction technology according to the present invention were sensory evaluated. As panelists, 30 persons carried out the sensory evaluation and the results are shown in Table 2.

[0021]

[Table 2]

From the above results, it is considered that the extraction technique according to the present invention is suitable when barley tea is targeted as a refreshing soft drink.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an extraction process divided into two stages by a barley tea extraction method of the present invention.

[Explanation of symbols]

 1 Extraction tank 2 Barley tea grains 3 Hot water 4 Hot water for extraction

Front Page Continuation (72) Inventor Yukihiro Amamiya 896-2 Shimoeduru, Oigawa-cho, Shita-gun, Shizuoka Stock Company Nissei Head Office Factory

Claims (3)

[Claims] 1. A method in which barley tea grains as a raw material are placed in an extraction tank and hot water is poured into the extraction tank to obtain an extract solution of barley tea grains, wherein the barley tea grains in the extraction tank are extracted before starting the extraction of the barley tea grains. A barley tea extraction method characterized in that hot water is allowed to pass through for a certain period of time, the hot water is discharged, and then barley tea grains are extracted and recovered with new hot water for extraction. 2. A method of putting barley tea grains as a raw material in an extraction tank and pouring hot water into the extraction tank to obtain an extract solution of barley tea grains, wherein before the extraction of barley tea grains is started, 0.5 to 3 times the weight of hot water is passed through the barley tea grains in the extraction tank, the hot water is discharged, and then the barley tea grains are extracted with new hot water for extraction and recovered. . 3. The barley tea extraction method according to claim 1, wherein the temperature of the hot water is 90 ° C. or higher.