JPH0624470B2 - How to make squid meal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION It is known that squid meal has an excellent growth-promoting effect when used as a protein resource in feeds for shrimps and fish. You can't get it by the way.

The production of fish meal is based on a method in which raw fish such as sardines is immediately boiled or steamed in a fresh state, and then pressed to remove water and oil, and then the residue is dried and then crushed.

Even if squid is treated in this way, it is not possible to efficiently produce good quality meal. That is, when squeezed or boiled squid is squeezed, the meat, which is necessary for the meal, such as the body, fins, head and legs, and the unnecessary liver as it contains a large amount of oil are crushed at the same time. Since it is close to the shape, it becomes difficult to remove water and especially oil.

Since the squid liver occupies 10 to 15% of the living body and contains oxidizable liver oil as described later, it is necessary to thoroughly remove this in the production of meal. That is, squid liver oil has an extremely high iodine value than fish oils such as sardine oil, and as a result, oxidation in air is extremely rapid. Therefore, when this liver oil is mixed in squid meal, its nutritional value and commercial value are significantly impaired due to the peroxide and odor of oil burning.

Conventionally, when producing good quality squid meal, first cut the tubular body part vertically with a knife etc. before boiling and ripening, and then do not crush the liver. It has been considered difficult to mass-produce like fish meal because it requires pretreatment such as removal.

The present invention relates to a method for mass-producing squid meal, in which a skeletal method is to preliminarily heat fresh squid and then remove the liver by a simple method, and, as described above, the first step and the second step. Consists of.

In the first step, 100 parts by weight of fresh squid that has not been pretreated is heated to coagulate the meat portion and the liver, and this is poured into a meat chopper together with 200 to 400 parts by weight of water. By this operation, the liver becomes fine particles and is suspended in water, while the fleshy portion is crushed or cut into pieces of meat without directly contacting the liver.

Next, the water containing the meat pieces and the liver in the form of fine particles that have come out from the chopper is filtered to collect only the meat pieces.

In the second step, the collected pieces of meat are washed with water, then dried and then ground.

The reason for washing with water is that the collected meat pieces have fine-grained liver, liver oil, and the like attached to them, and these must be removed before drying.

This invention is an application of the phenomenon that the flesh part and the liver of heat-coagulated squid lose both stickiness and adhesiveness, but at the same time, their proteins significantly reduce the solubility in water and saline solutions. , Based on the following experimental facts.

That is, the present invention, (1) when fresh squid without pretreatment is put into a meat crusher such as a meat chopper, the pasty liver adheres to the meaty part as if it was glued, but heat Since the coagulated liver becomes tofu-like, it does not adhere in this state. Experimental fact that even if it adheres, it can be removed by washing with water or hot water without causing significant loss of meat quality, (2) In this case, if heated squid is put into meat chopper together with water, meat quality Since the chance that the part will come into contact with the liver decreases, the liver adhering to the fleshy part significantly decreases, and the adhering thing can be easily removed by washing with water, (3) When passing through a chopper Even if water is used for washing, the solubility of the heated meat part in water is significantly lower than that of fresh one, so it is based on the experimental fact that the loss on the yield of meal is small. .

The present invention was devised on the basis of the above grounds, but the essential points of the contents of its implementation are as follows.

In the first step, (1) heating of squid is performed by either a method of aging or steaming. (2) 2-3 c for meat chopper
Pre-install a plate with holes so that a piece of meat of m ² can be obtained. (3) About what is poured into this chopper is received by a wire mesh of about 2 mm ² and at the same time filtered to collect the pieces of meat. (4) If an antioxidant is added to boiled water in advance,
It is possible to prevent quality deterioration during storage of squid meal.

In the second step, (1) the fine particles of liver and liver oil adhering to the meat pieces are washed and removed. For washing, it is effective to put a piece of meat in water and stir it for 2 to 3 times. (2) In this case, collect the washing liquid with a washing liquid of about 2 mm ²
Filter with a wire mesh or the like.

(3) After depositing the pieces of meat on the wire mesh or using a simple centrifuge etc.
And then pulverize to about 60-80 mesh.

In addition, in the first step, when water is used when pouring squid into the meat chopper, or when seawater is used instead of the water used for the first washing in the second step, the salt that has penetrated the meat pieces is In order to remove as much as possible, note the following points.

That is, in the former case, the cleaning is performed 2-3 times, and from the first cleaning, and in the latter case, the next cleaning is performed at least twice, and the second cleaning is performed.
In either case, it is desirable to use water or hot water. When these washings are carried out, if an antioxidant is added to the water used in advance, good results can be obtained for maintaining the quality of squid meal.

Next, the present invention will be specifically described with reference to examples.

Example 1 Six squid, 1.4 kg, are prepared. This is put in 5500 cc of boiling water to which an antioxidant has been added in advance, and ripened for about 5 minutes.

Next, prepare a meat chopper equipped with a plate having holes so that the squid becomes a piece of meat of about 2 to 3 cm ² , and pour the boiled and matured squid together with 3000 cc of water. The meat that came out of the meat chopper contained pieces of meat in which the body, fins, head and legs were crushed or cut, so this was filtered through a wire mesh of about 2 mm ² and collected.

The filtrate in this case was pinkish brown and opaque with a large amount of suspension. In addition, the meat pieces collected by the wire mesh were dirty light brown with fine particles of liver, liver oil, ink, and the like attached.

Next, in order to wash this meat piece, it is put into 5500 cc of water and stirred for about 2 minutes. Then, the meat pieces were collected by filtering with a wire mesh of about 2 mm ² .

The filtrate in this case was dark gray and turbid with a small amount of suspension. A slight amount of the suspension found in the filtrate adhered to the collected meat pieces. When this was further washed by the same method, the deposits could be washed off.

The pieces of meat were drained by thinly depositing them on a wire mesh, then dried at 80 to 90 ° C. and then ground.

In this way, 130 g of squid meal with a water content of about 8%
Was able to be obtained.

Example 2 Six squid and 1.2 kg are prepared. Boil this in a steamer for 8 minutes. Steamed squid with water pre-added with antioxidants
The same process as in Example 1 is performed using 2500 cc. The filtrate in this case contains a larger amount of suspension than that in the case of being boiled, and the collected meat pieces also have many deposits. Prepared 5000 cc of water to which an antioxidant was added in advance, put meat pieces into this, and stir for 2 minutes to wash, and this was repeated 3 times.

The obtained meat piece was treated in the same manner as in Example 1 to obtain 130 g of squid meal having a water content of about 9%.

Claims (1)

[Claims] 1. A first step in which fresh squid is heated and then, together with a large amount of water, is passed through a meat crusher such as a meat chopper to obtain fine meat pieces, the meat pieces are washed with water and then dried, and then A method for producing squid meal, which comprises a second step of crushing.