KR20210107563A - The processing method of frozen wet feeds with recycling for the shoals of fish - Google Patents

Abstract

The present invention relates to a fish feed processing research and development project for recycling. These days, dietary life improvement is leading to an increase in food waste. Although the waste is collected by industry associations, it is not easy to recycle the waste, disposal sites are becoming increasingly unavailable, and the waste can hardly be used as fertilizers due to its high salinity. Meanwhile, marine product processing plants are generating a large amount of waste that can be utilized at cage fish farms and fisheries. In this regard, the present invention aims to carry out recycling into a wet feed for fish shoals. Previously, fish farms used live fish as a feed. However, live fish is hard to acquire due to fish resource protection and offshore fishing control. Now, as a result of item and technology improvements in the feed processing industry, sorting and processing for waste recycling are possible on condition of processing by which a certain level of freshness is maintained. Research is in progress so that this leads to a new recycling project and the present invention relates to this emerging technical field pertaining to recycling. According to the present invention, marine product waste can be recycled without exception and processing is performed into a recycled frozen wet feed for a fish shoal. By providing this wet feed for fish, waste generation can be reduced in the marine product industry by means of separate collection processing. In addition, the inexpensive recycled feed can lead to a decrease in fish farming cost and is expected to solve the problem of fish feed shortage.

Description

The processing method of frozen wet feeds with recycling for the shoals of fish}

The processing method of the present invention has been used for a long time, but the processing method is simple and almost unprocessed raw raw fish is ground or used as raw feed. Therefore, it is a manufacturing technology in the feed field, which belongs to the processing technology that has been provided to cage-cultured fish species or livestock eel species by manufacturing it in an unscientific way, such as impairing digestion.

Recently, due to many studies, the feed provided to the fish group is supplied as a compound feed, but it is not suitable as a feed for the fish group, it is expensive, and the waste of aquatic products that cannot be used for food is diverse, so recycling is essential. If the discarded seafood processing by-products that can be recycled, which can also be recycled, can be manufactured as frozen wet feed in accordance with the strengthened law in It is also part of the processing technology expected in the field of recycling fish feed processing business for effective seafood processing by-products.

As the technology behind the present invention, it is a flounder high-efficiency EP feed composition researched and developed by the Fisheries Research Institute for a substitute for raw feed. Domestic Patent No. 10-2014-0061791 (April 29, 2014) and Domestic Patent No. 10-2009-0008002 (2002.02.06.), non-heated soft particle feed and manufacturing method thereof, and Korean Patent No. 10-2009-0123418 (2009.12.11.) wet feed for fish farming and manufacturing method thereof, and Korean Patent Publication No. 10- 2017-0116676 (2017.10.20.), Japanese Patent Application Laid-Open No. 2000-245355 (2000.09.12.), Japanese Patent Laid-Open No. 2007-098367 (2007.4.19.) and numerous other patented technologies of fish feed made the background,

In particular, the main background technology is that in view of the fact that aquatic products are perishable in terms of their characteristics and processing by-products, the most important thing is to always maintain a frozen state even when collecting and transporting waste, even if it is a waste, before it spoils. The technology was used as the background technology of this patent,

The problems to be solved in the present invention are to collect all of the discarded seafood processing by-products rich in protein in consideration of the lack of nutritional components even in the compound feed, and then analyze the components in an aggregate unit to identify the ingredients insufficient to supply as a fish feed. Then, based on this, it is recommended to find sub-materials that can make up for the lack of ingredients and make up for them. It is recommended to produce particle feed of a good size for fish groups. This is a method of excluding stress to fish groups by forming them into cubes and feeding them.

When trying to artificially feed a fish group, there are no great conditions for adult fish, but if the fry and rear fish groups have too much fat, digestion problems occur. However, since it can be a problem for the growth of bred fish, it is necessary to control and process fat, which is an important issue to be solved.

It is advantageous to produce feed in the short term without storing the generally discarded seafood processing by-products, but in terms of long-term feeding, it can be solved only by refrigeration and there is no difficulty in purchasing feed for cage breeders. The field also included this point as a task to solve in terms of making the manufacturing of this additive feed sustainable.

Due to the nature of the Busan region, where tuna fish processing business is prevalent as an outpost for deep-sea fishing boats, high-tech industry has developed in tuna processing. Since it is a fatty and perishable fish, it is not accepted, so it is collected at the fishmeal feed manufacturing plant and processed into fishmeal feed. Because it is processed into a liquid rather than a powder, it is frozen for easy transport and storage, so this is adopted as a solution.

Although freezing treatment does not solve sanitation problems, it is easier to separate fat by heating at low temperatures instead of heat treatment to remove fat, which is a condition of rancidity, before freezing. If you only prevent rancidity, you do not need to worry about microbial contamination, and bacteria can be easily suppressed by freezing fish meat, but viruses must be sterilized by UV treatment. Process development that thoroughly prevents prevention should also be a solution.

In order to recycle the seafood processing by-products of the present invention, the whole amount of processed tuna by-products is crushed without heat treatment in order to be processed into fish feed required by aquatic fish breeding farms and cage farms, and then hydrolyzed and transported to separate fats at low temperature while irradiated with ultraviolet rays and a small amount of water. After being frozen and stored in a container containing It is expected,

As fish resources are depleted, aquaculture is needed due to a shortage of aquaculture, but it provides new fishmeal feed resources to the cage aquaculture industry, which is shrinking due to lack of feed. The effect is expected

1 is a process diagram of a recycled frozen wet food processing process for a fish group of the present invention;
2 is a nutritional component analysis table of the recycled frozen wet food for fish groups of the present invention;
3 is a chart of the mixing ratio of the recycled frozen wet feed and the blended feed for the fish group of the present invention;
<Short description of symbols>
1st process: raw material collection, 2nd process: crushed fish porridge,
3rd process: hydrolyzing, 4th process: heating separation,
Step 5: Drum filtration, Step 6-1: Filtered fish meat
Step 6-2: Oil-water separation, Step 7-1: Separated fish oil
Step 7-2: Discharge of separated water, Step 8: UV irradiation,
Step 9-1: Frozen fish meat, Step 9-2: Chilled fish oil,

The 'recycled frozen wet food for fisheries' of the present invention has been collected and processed in various ways, provided and used by fish breeders, but the standard of living has changed, there is a change in the appetite for fish food, and there is a waste treatment domestically as well as internationally. As regulations became stricter, waste aquatic products processing plants were gradually shut down, and it became a product that has lost interest around us.

Seafood processing by-products, which have been discarded for a while, have been in the spotlight as livestock feed and feed for farmed fish, but due to environmental issues, not only the establishment of new processing plants but also regulations of existing factories limit the grinding processing for heat treatment or powder work in the processing process. It has become difficult to feed, and furthermore, the raw materials collected after being separated into biological waste aquatic products are treated with living organisms while avoiding pulverization for powders that generate dust, etc.

First, for raw material collection (first process), processing by-products discarded from canning factories or live fish factories are received as waste aquatic products, dried at high heat at a fishmeal processing factory, and then crushed is no longer acceptable. The fish porridge, which is a by-product of fish processing, is shredded fish porridge (second process), which is crushed into a living state immediately upon arrival. When stirred (3rd process), it is stirred while being superimposed and added like porridge, put in a drum-type low heat heater, rotated, and heated and separated (4th process), which is treated with low heat, a large amount of body fat contained in the characteristic of tuna is released and water It becomes a milky fish porridge mixed with fatty fish oil,

After the heating separation (fourth process), the tuna body fat dissolves in water to become free fat, and becomes oily fish porridge. The fat is separated into oily fish oil, and the oily fish oil is separated into water and fish oil by oil-water separation (Step 6-2), and the separated water is disposed of as separated water discharge (Step 7-2), and the fish oil is collected as separated fish oil (Step 7-1), put in a fish oil container, refrigerated with refrigerated fish oil (No. 9-2) to prevent acid waste for long-term storage, and then supplied to consumers, recycled fish oil feed do,

If refrigerated fish oil (Step 9-2) is not irradiated with UV light (Step 8) before storage, the refrigerated fish oil (Step 9-2) may become acid waste, but harmful microorganisms cannot remain. Therefore, the ultraviolet process (the 8th process) is omitted,

Separately from the dehydrated fish meat obtained by drum filtration (step 5), it does not go through hydro-stirring (3rd step), warming separation (4th step), drum filtration (5th step), and oil-water separation (6-2 step). Crushed fish porridge (Second process) collected for use is also received and collected as filtered fish meat (Step 6-1) still retains a lot of moisture, so it is easy to deteriorate. All silver is destroyed when exposed to only UV rays in UV irradiation (step 8), so before moving to the freezer, put it on a conveyor belt, install a UV irradiator on the conveyor belt, irradiate it, conduct UV irradiation (step 8), and then sieve At this time, it is placed in a rectangular resin container for 20 kg units, and the filtered fish meat (Step 6-1) contained is all contained in the state of watery fish meat, so the collected filtered fish meat (Step 6-1) and Separately stored adult fish are also stored as pre-cooled or quick-frozen for storage until they are distributed as frozen fish meat (Step 9-1), and then supplied to end-users. will be,

The frozen wet food prepared as described above has a high moisture content and melts as soon as it is taken out of the freezer. It can be manufactured with the same feed as raw fish feed, and when feeding the general compound feed made from grains to farmed fish, water must be added separately and injected into cubes. Since it can be injected into cubes, it can be manufactured as a compound feed for fish provided as a good wet frozen cube feed.

For raw material collection (1st process), if the tuna by-products generated at the tuna processing plant are processed into shredded fish porridge (2nd process) immediately upon arrival with a refrigeration vehicle, the tuna bones are crushed together to form a thin fish porridge, and the In the method of putting in a container, adding the same amount of water and stirring (3rd step), the fat contained in the fish porridge is heated and separated (4th step) to liberate the body fat from water, and the fish meat, fat and water are diluted. This is because the fat that has been processed into fish porridge is easy to separate by drum filtration (fifth process) and the fat is removed when processed into filtered fish meat (the 6-1 process) with less fat, because it is good for fry feed.

The process performed in stages as described above is a tuna fish species with a lot of fat content, and in order to transfer even a fish porridge processed by adding water, it is difficult to operate in a separate device for forced transfer or manual work that requires a lot of labor costs. This is difficult, so for the purpose of easy transport, the water is added and heated and separated (process 4) to separate fat for frying while hydrolyzing (third process).

Hydrogen stirring (3rd process) is a process that not only separates and collects fat but also makes it easier to transfer fat. process), heat treatment is performed in such a way that the fat contained in a large amount of processed tuna by-products is easily liberated,

In drum filtration (fifth process), the filtration device covers the drum device with a filter cloth and the problem of how much water content can be separated from the running water fish oil according to the rotation speed is a method according to the rotation speed, that is, the RPM. should be set by measuring

In order for the crushed fish porridge (second process) to be transferred to the transport pipe installed at the bottom of the crushing device, the concentration of the crushed fish porridge must be a certain level of liquid, and the fat content is also the nutritional component of the recycled frozen wet food for fish groups of the present invention. As shown in the analysis table (see Fig. 2), it reaches 7%, so if a large amount of water is contained to separate such fish oil, oil-water separation is easy, so it must go through hydro-stirring (3rd process) and warming separation (re-4th process),

As above, after hydrolyzing (3rd step) and warming separation (4th step), the drum filtration (5th step) uses a drum-type filtration device to separate and collect dehydrated fish meat and water-containing fish oil mixed with fat and water. , separated into water and fat in oil-water separation (Step 6-2), and the separated fish oil (Step 7-1) separated from water is placed in a container and refrigerated with refrigerated fish oil (Step 9-2), and the water is The entire amount is discharged to the drain pipe through the separated water discharge (Step 7-2),

The entire amount of dehydrated fish meat obtained by filtration in drum filtration (step 5) is placed in a rectangular resin container weighing 20 kg. This is mounted, and the UV irradiation device is mounted on the conveyor belt to perform UV irradiation (8th step) that stirs and sterilizes the filtered fish porridge (6-1 step), and puts the UV sterilized resin container on the pallet. When loading, 1 ton of pallets loaded with 5 tiers of 6 in 3 rows of front and back and 10 in 1 row of 4 are moved to a frozen warehouse with a forklift and stored as frozen fish meat (Step 9-1), it can be used as wet feed for fisheries. Since it is manufactured, the raw tuna fish by-products collected in the living body in the raw material collection (step 1) could be treated as feed resources that are not to be discarded except for the separation of water that only discards the water added at the factory.

As described above, the frozen wet food stored in the frozen warehouse is processed by processing the tuna processed products that are discarded at the tuna processing plant collected as a living body as described above, and is supplied to a nearby livestock farm, mixed with the compound feed for general fish at a prescribed mixing ratio, and injected into cubes. I was able to see good growth by spraying and feeding the young fish.

In accordance with the advice of nutrition experts in the aquaculture field that there is no major obstacle to digestion and that fat content improves meat taste rather than protein content, tuna collected and stored separately during the processing stage of tuna fish products that are discarded in public places After performing oil-water separation (Step 6-2), the water and fat collected in step 5) are secured as dehydrated fish oil with separated fish oil (Step 7-1), and a certain amount is placed in a container and refrigerated fish oil (Step 9-) The whole amount collected in step 2) was refrigerated and provided to a fish farm for use only for adult fish.

In order to promote fattening, the adult fish group contains the refrigerated fish oil (Step 9-2) in a container in a certain amount at a specified mixing ratio, mixes and mixes it in a cube manufacturing device at the farm compounding warehouse, and then injects it into small cubes and supplies it. As a result, it was confirmed that good meat quality was obtained,

Although it is only an adult fish, fat obtained from tuna waste can also be sold according to the opinion that the quality of the meat has improved as a result of raising the water temperature according to the advice of the fisheries researchers that the water temperature of the farm must be maintained at a constant temperature to digest the fat. It was an opportunity to

Unlike fry and reared fish groups, adult fish of all artificially reared fish grow faster and have better meat taste when they have a lot of fat. After carrying out step 2), only a certain amount of fish was stored for adult fish, and the whole amount of filtered fish meat (No. 6-1) was omitted by omitting hydro-stirring (3rd step), warming separation (4th step) and drum filtration (5th step). Process), 20 kg are placed in a square resin container and transported to a conveyor belt, passed through a UV device, and processed into wet feed only by UV irradiation (process 8) and frozen fish meat (process 9-1), making it easy and cost-saving We were able to obtain military recycled frozen wet food,

Claims (1)

In the processing method of the frozen wet food for the recycled fish group provided as a by-product feed for aquatic products processing to the cage or livestock farm farmed fish group,
The raw tuna fish porridge discarded at the tuna seafood processing plant is collected (first process), processed into crushed fish porridge (second process), and put in a container, and hydrolyzed with water in the same amount of the crushed fish porridge and the crushed fish porridge (third process) ), when the fish oil is dissolved in water in the crushed fish porridge by warming (process 4), only the filtered fish meat (process 6-1) is collected by drum filtration (process 5), put in a resin container, and put on a conveyor belt for ultraviolet rays Processing method of frozen wet food for recycled fish group, characterized in that it is irradiated (Step 8) and processed into frozen fish meat (Step 9-1)

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