Currently, around 70 million tons of seafood are being processed in the form of fillets, frozen, canned or impregnated. Most of these processes release a large number of by-products and waste products.
Specifically, in 2011, while global tuna production was about 4.76 million tonnes, canned tuna products were only nearly 2 million tonnes. Solid waste or by-products disposed of canned tuna (including heads, skeletons, viscera, gills, dark meat, ventrals and skin) may account for about 65% of the raw material. head. Reporting data in the tuna meat industry also showed that waste products, by-products accounted for about 50% of the total raw material.
When filleting fish, the product usually only accounts for 30-50% of the original material. Global salmon production in 2011 was about 1.93 million tons and most products were fillets, which were reported to account for about 55% of the total volume. A large number of tilapia and pangasius fish fillets are currently on the market with fillet efficiency of 30-37% for tilapia and 35% for pangasius.
As can be seen, the seafood processing industry has been producing significant amounts of waste products, by-products and meat from components such as heads, skeletons, belly, liver and eggs. These are high quality protein components, omega-3 fatty acids, micronutrients (such as vitamins A, D, riboflavin, niacin) and minerals (such as iron, zinc, selenium and iodine).
In 2010, a study in the Norwegian salmon industry found that of the 45,800 tonnes of fish, skeletal and pelvic fins and the excess meat from the top 5 companies, only 24% of them (11,000 tonnes) were The most common use is to make use of chopped meat to make chopped or sausage, the rest are processed for animal feed.
The tuna sector has also made significant progress in utilizing consumer by-products. From the amount of waste, tuna byproducts, a company in Thailand has produced about 2,000 tons of tuna oil annually. This is a high value product for humans. Refined tuna oil is 25-30% docosahexaenoic acid (DHA), and even eicosapentanoic acid (EPA), which is usually added in popular foods such as bread, yogurt, milk and milk. Infant formula.
After Thailand, the Philippines is the second biggest producer of canned tuna in Asia. Dark meat (about 10% in tuna) is canned and exported to countries like Papua New Guinea. Tuna’s darker colors are more nutritious than normal meat because they contain high levels of omega-3 fatty acids, minerals, and certain vitamins.
In addition, local people also use their heads and fins to make fish soup. Internal organs like the liver, heart and intestines are part of a local dish, called “sisig”. Viscera of tuna is also a raw material for fish sauce production. Tuna, gonads and tails are frozen and sold to local consumers in the Philippines.
In the catfish processing industry of Vietnam, filleting performance is about 30-40% and most of the by-products are used to produce fish meal. However, there are some companies that produce pangasius oil or refined collagen to serve the needs of human consumption. In addition, dark meat and chips are mixed with potatoes or cereal in fish paste (or surimi) products and consumed in local markets.
As a result, the proportion of fishmeal produced from fishery by-products increased from 25% in 2009 to 36% in 2010. Thailand, Japan and Chile are major producers of fishmeal from byproducts. According to the International Fishmeal and Fish Oil Organization (IFFO), the aquaculture (aquaculture) sector used 73% of fishmeal production in 2010, thus contributing indirectly to the production of fishmeal. Global food. For fish oil, it is estimated that around 71% of fishery production is used for aquaculture feed and 26% for human consumption.
In many countries, seafood processing plants are generally small and medium sized, so the volume of defective products may not be enough to feed the fish meal factories. Using waste fermentation method, this by-product is relatively convenient and less expensive than having to preserve them.
This is a common practice in Norway, the food from waste products, by-products that have undergone annealing to a centralized processing plant. The product is then mixed with fish oil as a feed for pigs, poultry and other fish species except salmon.
In particular, some large fish slaughterhouses have succeeded in processing waste / by-products using enzymes to extract very high levels of hydrolysates and fish oil.
Specifically, in 2011, while global tuna production was about 4.76 million tonnes, canned tuna products were only nearly 2 million tonnes. Solid waste or by-products disposed of canned tuna (including heads, skeletons, viscera, gills, dark meat, ventrals and skin) may account for about 65% of the raw material. head. Reporting data in the tuna meat industry also showed that waste products, by-products accounted for about 50% of the total raw material.
As can be seen, the seafood processing industry has been producing significant amounts of waste products, by-products and meat from components such as heads, skeletons, belly, liver and eggs. These are high quality protein components, omega-3 fatty acids, micronutrients (such as vitamins A, D, riboflavin, niacin) and minerals (such as iron, zinc, selenium and iodine).
Leverage for human consumption
The cod fishing industry in Iceland and Norway has a long tradition of utilizing human byproducts. Cod eggs can be eaten fresh after heat treatment, can be canned or processed into a paste to sandwich. Fish liver can be canned or processed into cod liver oil, a popular product long before the health benefits of Omega-3 have been recognized recently.In 2010, a study in the Norwegian salmon industry found that of the 45,800 tonnes of fish, skeletal and pelvic fins and the excess meat from the top 5 companies, only 24% of them (11,000 tonnes) were The most common use is to make use of chopped meat to make chopped or sausage, the rest are processed for animal feed.
The tuna sector has also made significant progress in utilizing consumer by-products. From the amount of waste, tuna byproducts, a company in Thailand has produced about 2,000 tons of tuna oil annually. This is a high value product for humans. Refined tuna oil is 25-30% docosahexaenoic acid (DHA), and even eicosapentanoic acid (EPA), which is usually added in popular foods such as bread, yogurt, milk and milk. Infant formula.
After Thailand, the Philippines is the second biggest producer of canned tuna in Asia. Dark meat (about 10% in tuna) is canned and exported to countries like Papua New Guinea. Tuna’s darker colors are more nutritious than normal meat because they contain high levels of omega-3 fatty acids, minerals, and certain vitamins.
In addition, local people also use their heads and fins to make fish soup. Internal organs like the liver, heart and intestines are part of a local dish, called “sisig”. Viscera of tuna is also a raw material for fish sauce production. Tuna, gonads and tails are frozen and sold to local consumers in the Philippines.
In the catfish processing industry of Vietnam, filleting performance is about 30-40% and most of the by-products are used to produce fish meal. However, there are some companies that produce pangasius oil or refined collagen to serve the needs of human consumption. In addition, dark meat and chips are mixed with potatoes or cereal in fish paste (or surimi) products and consumed in local markets.
Making use of animal feed
Demand and selling prices for fishmeal and fish oil globally are on the increase. Therefore, these are no longer low value products. Moreover, the trend towards using fish as a food substitute instead of fish meal and fish oil is growing. This combined with tightening of fishing quotas, strict control over regulation and control of fish feed has contributed to a sharp increase in fishmeal and fish oil prices.As a result, the proportion of fishmeal produced from fishery by-products increased from 25% in 2009 to 36% in 2010. Thailand, Japan and Chile are major producers of fishmeal from byproducts. According to the International Fishmeal and Fish Oil Organization (IFFO), the aquaculture (aquaculture) sector used 73% of fishmeal production in 2010, thus contributing indirectly to the production of fishmeal. Global food. For fish oil, it is estimated that around 71% of fishery production is used for aquaculture feed and 26% for human consumption.
In many countries, seafood processing plants are generally small and medium sized, so the volume of defective products may not be enough to feed the fish meal factories. Using waste fermentation method, this by-product is relatively convenient and less expensive than having to preserve them.
This is a common practice in Norway, the food from waste products, by-products that have undergone annealing to a centralized processing plant. The product is then mixed with fish oil as a feed for pigs, poultry and other fish species except salmon.
In particular, some large fish slaughterhouses have succeeded in processing waste / by-products using enzymes to extract very high levels of hydrolysates and fish oil.
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