JP2002291457A - Apparatus for blanching treatment for producing frozen product of green agricultural product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for blanching treatment used for producing a processed frozen product retaining the tastiness of the season of a just collected green agricultural product. SOLUTION: This apparatus for the blanching treatment for producing the frozen product of the green agricultural product is composed of a cylindrical body having at least a color developing zone and a swelling zone, a means for feeding steam to the interior of the cylindrical body and a means for moving the green agricultural product in the cylindrical body. The apparatus for the blanching treatment is used for the blanching treatment of the green agricultural product which is a solid green vegetable eaten after heating. The color developing zone is a hot water treating zone and the swelling zone is a steaming zone. The green agricultural product is successively moved in the color developing zone and the swelling zone with the means for moving the green agricultural product in the cylindrical body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blanching apparatus for producing frozen green agricultural products. Specifically, the present invention relates to a method for producing a frozen green agricultural product which has been subjected to blanching treatment, comprising a blanching treatment step in which the green agricultural product is subjected to a coloring treatment by hot water treatment and a swelling treatment by steaming. A blanching treatment device used for, i.e., at least a green body having a coloring zone and a swelling zone, a means for supplying steam into the cylinder, and a means for moving green agricultural products in the cylinder, The present invention relates to a blanching treatment device for manufacturing frozen products.

[0002]

2. Description of the Related Art When green agricultural products such as green beans, edamame, Kinusaya and fava beans are distributed as processed products, usually, good agricultural products are subjected to blanching treatment for the purpose of deactivating enzymes by hot water treatment. They are frozen and distributed, and when they are eaten, cooking is essential and it usually takes time to eat. Everyone wants to cook green vegetables as fresh as possible immediately after harvesting and put them on the table immediately. In order to respond to such demands, processed frozen products are attracting attention as a form that can easily deliver the seasonal taste to any place, away from the production area, regardless of the season.

[0003] However, processing technology for green agricultural products seems to be simple at first glance only by boiling. However, a processing technology for maintaining the fresh taste of freshly harvested food until frozen meal is not yet invented. . Even approaching that ideal is a very difficult matter. Taking broad beans as an example, the processing conditions must be delicately changed depending on the ripeness, variety, freshness, handling amount, etc. of the broad beans, and it is difficult to finish deliciously and uniformly. In addition, there is a problem of frozen storage for a relatively long time after processing, which makes processing technology for maintaining the fresh taste of fresh season more difficult.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a blanching apparatus used for producing a processed frozen product which maintains the fresh taste of green agricultural products. Specifically, the present invention finishes green agricultural products in a state with a soft feeling and freshness, without losing umami to processed products, and by further freezing the processed products,
Provided is a blanching treatment apparatus used for producing such frozen green agricultural products, which can retain softness, freshness, and umami, and can be eaten without heating after thawing. The purpose is to:

[0005] That is, an object of the present invention is to provide a blanching treatment apparatus which constitutes an apparatus for producing a frozen green agricultural product that can efficiently and deliciously produce a green agricultural product with a bright green color. Further, the present invention provides an apparatus for manufacturing frozen green agricultural products, which can set the optimal hot water treatment, steam steaming treatment time and temperature according to the processing conditions that vary depending on the type, ripeness, freshness, etc. of the green agricultural products. It is an object of the present invention to provide a branching processing device that constitutes the above.

[0006]

The green agricultural products targeted by the present invention are green and solid vegetables such as beans such as green peas, green beans, soybeans, broad beans and green peas, and green asparagus. The processing method of the present invention employs a combination of a coloring step by short-time hot water treatment of green agricultural products in hot water and a swelling step by steam cooking.
By adopting each of these processing steps, it is possible to finish a processed green agricultural product in a state having a soft feeling and without losing freshness and umami. The processed product can be frozen as it is, and can retain softness, freshness, and umami. And after thawing, it can be eaten without heating.

A description will be made by taking an example of edamame. The degree of heating of Edamame depends on the sum of temperature and time.
The higher the heating temperature and the longer the heating time, the more yellowish the color tends to deteriorate. Even if the heating temperature is low, if the heating time is long, the color tone will deteriorate. It is important to keep the heating to the minimum necessary in consideration of the hardness (texture) of the beans.
As the heating means, a combination of short-time hot water treatment in hot water and steam steaming treatment is employed.

[0008] The apparatus of the present invention is an apparatus for moving green agricultural products through a cylindrical body to pass through a color development zone by hot water treatment and a swelling zone by steam steaming. For example,
The outer cylinder (1) of the inclined double cylinder is a water seal and the inner cylinder (2)
Is a perforated (12) or a wire mesh, a spiral transport blade (3) is provided inside the inner cylinder (2), the jet port (5) is provided at the center of the double cylinder, and the outer cylinder (1) is provided. Hopper (4)
, And a discharge port (7) provided at the lower end of the upper end of the green agricultural product (see FIG. 1). Further, the material of the present device is preferably a stainless steel material.

[0009]

EXAMPLES The present invention will be described with reference to examples. The present invention is not limited at all by the examples. Example 1 A green bean put into a cylindrical body is immersed in steam-condensed hot water for less than one minute. Then, it moves to the upper end of a cylinder, and steams for 2 to 3 minutes in a steam atmosphere at a temperature of 95C to 100C. After such treatment, the green beans were taken out of the apparatus from the outlet. The green beans were bright green and were boiled softly.

Example 2 Harvested and collected soybeans are firstly sorted to remove unnecessary substances.
Repeat the washing and perform the second sorting. Edamame, which has been selected and permeated for about 3 hours at a salt water concentration of 15 ° on a net conveyor, is passed through boiling water for less than 1 minute, and then steam blanched. Steam steaming is 95 ° C ~
Perform at 100 ° C for 2 to 3 minutes to bring the product temperature to 85 ° C to 90 ° C. If eaten immediately at this point, it is salty and savory with an umami taste and is in a delicious state.

[0011] Further, the product temperature is 30 ° C to 3 ° C through cooling water.
Cool to 5 ° C. Make it even on a vibrating conveyor and transfer to the freezing process. The product immediately after freezing has a salty taste when eaten as it is, and can be eaten as it is after thawing.
A third sorting is performed, weighed, and packed in a bag of 400 g to 500 g. When the bean edible was eaten after thawing, it had a fresh flavor and salty taste, and was good with a soft texture. When the salt content of the green soybean was measured, it was 1%. When the hardness was measured with a tablet hardness tester,
g, min 0.3 kg The average value was 0.4 kg.

Embodiment 3 A processing apparatus according to the present invention will be described with reference to FIG. A cylindrical body having a double structure in which a space is provided inside the outer cylinder (1) and an inner cylinder (2) having a large number of holes (12) is provided on the circumferential surface of the cylinder is installed at an angle. A helical transport blade (3) is provided inside the cylindrical body to slide on the inner surface of the inner cylinder (2) and turn.

The helical transport blade (3) is attached to a shaft (10) passing through the center of the cylindrical body and is integrated. shaft
(10) and the cylindrical body are bearings at the end plate (14) on the end face of the cylindrical body.
A power transmission member such as a chain wheel (8) and a pulley for rotating the spiral transport blade (3) outside the outer cylinder (1) is attached to the shaft (10) through a combination through (11). . The drive motor (9) for supplying power to the power transmission member can change the rotation speed.

The outer cylinder (1) of the cylindrical body is provided with a hopper (4) for supplying a raw material at the upper end of the lower end, and a water discharge valve ( 13) is provided. In addition, a raw material discharge port (7) is provided at the lower part of the upper end of the outer cylinder. A plurality of steam outlets (5) for sending steam into the inside of the cylindrical body are provided at a lower center portion of the cylindrical body. The amount of steam emitted can be appropriately adjusted. Further, a plurality of spouts (6) for feeding water into the inside of the cylindrical body are provided at a central upper portion of the outer cylinder (1), and the spouts (6) are connected to an external water pipe. Since the outer cylinder (1) is a water seal, the steam ejected from the center of the cylindrical body condenses into hot water and accumulates at the lower end of the inclined outer cylinder (1). Hot water is supplied to the flush valve (1
It is discharged from 3).

Green agricultural products are fed from the hopper (4),
It stays in the steam condensed hot water collected in the lower end lower part of the outer cylinder (1), and during this time, the green agricultural products are colored with hot water so as to give a bright green color. Subsequently, the inside of the perforated inner cylinder (2) is moved to the upper end by the rotation of the helical transport blade (13), and is exposed to steam ejected from the steam ejection port (15) at the center of the cylinder. The perforated cylinder and helical transport vanes take any structure that allows the steam to efficiently contact the moving green produce. During this time, a swelling treatment is performed to softly boil the green agricultural products. The green agricultural product still moves inside the inner cylinder (2) by the spiral transport blade (13) and is taken out from the outlet (7).

[0016]

According to the present invention, a green agricultural product can be processed into a processed product with a soft feeling and without losing freshness and umami. The processed product can be frozen as it is, and can retain softness, freshness, and umami. And after thawing, you can eat it without heating. Since the hot water treatment and the steam steaming treatment are used together, green agricultural products can be efficiently and deliciously finished in bright green.

According to the apparatus of the present invention, since the hot water treatment and the steam cooking treatment can be performed in a single cylinder, green agricultural products can be efficiently blanched.
In addition, by changing the number of revolutions of the spiral transport blade, moderately change the processing time of the hot water treatment and steam steaming treatment,
In addition, by adjusting the amount of steam to be blown out, optimal hot water treatment and steam steaming treatment can be performed according to the processing conditions that vary depending on the type of green agricultural beans such as green peas, green beans, green beans, and broad beans, and the maturity and freshness of the beans. And the temperature and temperature can be set.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a green agricultural product processing apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer cylinder 2 Inner cylinder 3 Spiral transport blade 4 Hopper 5 Steam jet port 6 Fountain port 7 Discharge port 8 Chain wheel 9 Drive motor 10 Shaft 11 Bearing 12 Hole 13 Water discharge valve 14 End plate

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4B016 LC06 LG05 LP06 LP11 LT09 4B061 AA01 BA01 BB12 CD03 CD12 CD13 CD15 4B069 AA01 CA04 HA01

Claims (4)

[Claims] 1. Production of frozen green agricultural products comprising at least a cylinder having a coloring zone and a swelling zone, means for supplying steam into the cylinder, and means for moving green agricultural products in the cylinder. Branching processing equipment. 2. A method for blanching green agricultural products which are green and solid vegetables which are eaten after heating.
Blanching processing equipment for the production of frozen green agricultural products. 3. The blanching treatment apparatus for producing frozen green agricultural products according to claim 1, wherein the coloring zone is a hot water treatment zone, and the swelling zone is a steam cooking zone. 4. The branching processing apparatus for producing frozen green agricultural products according to claim 3, wherein the green agricultural products are sequentially moved in a coloring zone and a swelling zone by means for moving the green agricultural products in the cylindrical body.