JPH03219833A - Frozen lobster and its production - Google Patents

Abstract

PURPOSE:To sufficiently freeze the abdominal parts of lobsters and prevent freshness from deteriorating by wrapping parts lower than the abdominal parts of the lobsters arranged in a tray with ice and simultaneously covering the parts exposed from the ice with ice films. CONSTITUTION:A sherbet-like ice 6 containing cold water is placed in a tray (4A) to nearly a half of the height of lobsters 1 and the tail parts thereof are forcibly extended into a straight form. Lower parts than the abdominal parts of the resultant lobsters 1 are then buried in the ice 6. The tray (4A) holding the lobsters 1 is subsequently inserted from one side of a freezer 9 between an upper conveyor 12 and a lower conveyor 13 and quick-frozen while being conveyed to wrap the lower parts than the abdominal parts of the lobster 1 with ice 7. Parts exposed from the aforementioned ice are then sprinkled with cold water and subjected to glazing treatment to form ice films 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to frozen shrimp, which is frozen to make it suitable for preservation and sale, and then provided to the market, and a method for producing the same.

[Conventional technology]

Figure 8 shows frozen shrimp in the conventional frozen storage stage, with 1 being the shrimp and 2 being a large tray that receives the shrimp.

Shrimp 1 is preserved in ice block 3 by freezing treatment. FIG. 9 shows a plurality of shrimps 1 obtained by thawing the ice blocks 3, placed in a small tray 4, blown with cold air, frozen so that the surface is covered with an ice film 5, and sold. This is frozen shrimp at the sales stage.

Next, the operation will be explained. For example, shrimp 1 is imported from remote areas, especially foreign countries.

Pour a large amount into the cold water filled in the large tray 2,
Subsequently, it is stored in a refrigeration device (not shown).

Furthermore, the shrimp 1 in the large tray 2 are frozen with cold water for a long time to the center to form ice cubes 3 of the shrimp 1. A vendor in a demand area that receives the shrimp 1 transported in this state once thaws the ice cubes 3, separates the shrimp 1 into individual pieces, and arranges a plurality of shrimp 1 on a small tray 4 with their bellies sideways. The shrimp are placed in an air blast type freezing device (not shown), and cold air is blown onto them for a long period of time to form frozen shrimp enclosed in an ice film 5, which is then sold.

[Problem to be solved by the invention]

Conventional frozen shrimp is structured as described above, so it takes a lot of effort from production to sales, and even if you freeze the shrimp alone by air blasting, the complex abdomen containing internal organs cannot be frozen. There was a problem that the freshness of the product was not sufficient, and therefore the freshness of the product was likely to decrease, reducing the desire to purchase it.

The invention according to the first claim has been made in order to solve the above-mentioned problem, and is to obtain frozen shrimp that is easy to produce, can sufficiently freeze the abdomen, and can increase the desire to purchase. With the goal.

Moreover, the invention according to the second claim aims to obtain a method for producing frozen shrimp, in which the abdomen of the shrimp can be sufficiently frozen and the shrimp can be frozen quickly so that the freshness does not easily deteriorate.

[Means to solve the problem]

The frozen shrimp according to the first claim is obtained by arranging shrimp on a tray and wrapping at least the abdomen and lower part of the shrimp with ice.
The parts of the shrimp that are exposed through the ice are covered with an ice film.

The method for producing frozen shrimp according to the second claim includes arranging shrimp on a tray, filling sherbet-like ice or cold water in the tray so as to soak at least the abdomen and lower part of the shrimp, and placing the soaked shrimp on the tray. The ice cubes are then frozen in a freezing device, and after this freezing, the exposed portions of the ice are subjected to a glaze treatment to form an ice film.

[Effect]

In the frozen shrimp according to the invention according to the first claim, since the complex-shaped abdomen is completely wrapped in ice, deterioration of freshness from the abdomen where internal organs are contained can be effectively prevented, and the freshness does not deteriorate rapidly. An ice film is applied to the back of the animal to make thawing and cooking easier and faster.

In addition, the method for producing frozen shrimp in the invention according to the second claim is such that the abdomen of the shrimp is penetrated into the details using sherbet-like water or the like so that it can be sufficiently cooled.
The next freezing process is quick and easy, and since the parts exposed from the ice only need to be glazed and coated with an ice film, the production time for frozen shrimp can be shortened without reducing the freshness of the shrimp. Do it like this.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure and FIG. 2, 6 is sherbet-like water stored in the tray 4A in order to improve the freezing efficiency. Although this sherbet-like water is made by freezing water, it contains sufficient cold water, and is the part that will be entirely turned into ice 7 in the next freezing process. 8 is an ice film that covers the exposed portion of the ice 7.

Further, FIG. 3 shows a refrigeration device 9, which is a refrigerant 10.
It consists of an upper conveyor 12 containing shrimp 1 and a lower conveyor 13, and the shrimp 1 is frozen from the top and bottom while being conveyed while sandwiching a tray 4A containing shrimp 1 and sherbet-like water 6.

Next, the operation will be explained. First, as shown in FIGS. 1 and 2, sherbet-like water 6 containing cold water is poured into the tray 4A to about half the height of the shrimp 1. Next, the bent leg of shrimp 1 is forcibly stretched straight,
In this state, the abdomen and lower part of the complicatedly shaped abdomen having legs are buried in sherbet-like water 6. Next, the tray 4A holding the shrimp 1 in such a state is inserted between the two conveyors 12 and 13 from one side of the freezing device 9 as shown in FIG.
While transporting, remove shrimp from the top and bottom for a short time, for example 20 minutes.
Rapid freezing is performed in batches, and when the freezing temperature is about 10° C. below zero, it is taken out from the other side of the freezing device 9. At this time, the sherbet-like water 6 containing cold water turns into ice 7 as described above,
The abdomen of shrimp 1 is stuffed with ice. Next, the portion exposed from the ice 7 is subjected to a glaze treatment by pouring cold water to form an ice film 8 on that portion. In this glazing process, the above-mentioned cold water sprinkled on the frozen shrimp is frozen at the temperature of the frozen shrimp, and a thick ice film 8 can be obtained by dividing the cold water into several times.

In this example, the abdomen of shrimp 1 is shown wrapped in ice 7, but as shown in FIG. can omit the ice film formation step.

FIG. 5 shows another embodiment of the invention. This is tray 4
A small amount of sherbet-like ice 6 is stored in A, for example, at a height of five cubes, and a synthetic resin film 15 with approximately the same width as the length of the shrimp 1 is placed on the top surface of the sherbet-like ice 6, so that the legs are in contact with it. Shrimp 1 is placed with the abdomen facing downward, and then sherbet-like ice 6 is placed on the synthetic resin film 15 to about half the height of the shrimp 1, followed by the same freezing operation and glaze as described above. It performs processing.

According to this embodiment, when an impact is applied to the ice 7 during transportation, etc., the ice 7 is broken and separated on the surface of the synthetic resin film 15, thereby effectively preventing the legs of the shrimp 1 from breaking. This can improve product value.

FIGS. 6 and 7 show still other embodiments of the invention. This is done by placing the shrimp 1 with their heads facing in opposite directions and their abdomens facing each other laterally, and filling sherbet-like ice 6 between the opposing abdomens, so that each abdomen is immersed in the sherbet-like ice 6. Then, the shrimp were quickly frozen using the same freezing operation as described above, and the exposed portion was treated with glaze to form an ice film to obtain frozen shrimp.

According to this embodiment, it is possible to perform the freezing treatment intensively on the complex-shaped abdomen of the shrimp 1.

In addition to reducing the amount of frozen materials such as ice used, the freezing process can be carried out quickly, reducing the time and effort required from manufacturing to sales.

In the above embodiment, the ice 7 is formed by cooling the sherbet-like ice 6, but it may also be formed by cooling cold water. In this case, although the freezing time becomes longer, the operation becomes simpler.

Further, in the above embodiment, sherbet-like ice 6. Although the ice 7 and the ice film 8 are shown as uncolored, for example, by coloring the ice 7 and the ice film 8 in blue, for example, it is possible to stimulate the sense of freshness or the visual sense, thereby creating a desire to purchase the ice 7 and the ice film 8.

Furthermore, the above-mentioned sherbet-like ice 6. By making the ice 7 and the water for glaze treatment contain salt,
In addition to being able to promote freezing, it also has the effect of being able to be flavored by boiling, so that it can be eaten immediately.

〔Effect of the invention〕

As described above, according to the invention according to the first claim, shrimp are arranged on a tray, at least the abdomen and the lower part of the shrimp are covered with ice, and the portion of the shrimp that is exposed from the ice is covered with an ice film. With this structure, it is possible to intensively and effectively cool the abdomen, which has a complex shape and contains internal organs that are self-digesting and decomposing quickly, and can be easily thawed and used for cooking immediately. There is an effect that can be obtained.

According to the invention according to the second claim, shrimp are arranged on a tray, ice in the form of sherbet or cold water is poured into the tray so as to soak at least the lower part of the shrimp from the abdomen, and the soaked shrimp is placed on the tray. At the same time, it was frozen in a freezing device, and after this freezing, the exposed parts of the ice were treated with a glaze to form an ice film.
It is possible to effectively cool the abdomen by infiltrating it with sherbet-like ice, etc., to every corner of the abdomen, which has a complex shape.Furthermore, freezing is carried out mainly in the abdomen, and the rest is only treated with glaze. This has the effect of significantly shortening the time required for the entire freezing process.

[Brief explanation of drawings]

FIG. 1 is a side cross-sectional view showing frozen shrimp according to an embodiment of the present invention, FIG. 2 is a front cross-sectional view of the frozen shrimp shown in FIG. 1, and FIG.
FIG. 4 is a side sectional view showing a frozen shrimp according to another embodiment of the invention, and FIG. FIG. 6 is a side sectional view showing frozen shrimp according to another embodiment of the present invention, and FIG. 6 is a plan view showing frozen shrimp according to another embodiment of the present invention. Fig. 7 is a side sectional view showing the frozen shrimp in Fig. 6, Fig. 8 is a plan view showing the conventional large tray-shaped frozen shrimp, and Fig. 9 is a plan view showing the conventional small tray-shaped frozen shrimp. be. 1 is shrimp, 4A is a tray, 6 is sherbet-like ice, 7 is ice, 8 is an ice film, and 9 is a freezing device. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. (2 others)

Claims (2)

[Claims] (1) A frozen shrimp comprising shrimp arranged in a tray, ice that wraps at least the abdomen and lower part of the shrimp in the tray, and an ice film that covers the portion exposed from the ice. (2) A shrimp arranging step of arranging the shrimp in a tray, a dipping step of immersing at least the abdomen of the shrimp in the tray in sherbet-like ice or cold water, a freezing step of freezing the soaked shrimp together with the tray, and freezing. and an ice film forming step of forming an ice film by applying a glaze treatment to the portion of the shrimp that is exposed from the ice.