Cod occupies a very important position in the global fishing industry and has been a "life-saving fish" for North and South Korea.
In the 1980s, there were 60 species of economic fish in the global fishery production of more than 120,000 tons, and 13 members of the cod family were on the list, and the total fishing production reached 12.6 million tons.
For the distant-water fishing vessels of various countries, it is not easy to go to sea, and maximizing the economic value of the catch is always the highest pursuit of fishermen, and the removal of cod heads and only the torso position is to improve the overall economic efficiency.
In addition, cod heads are easy to rot and deteriorate, which will affect the quality of the whole fish, and the sooner the head is removed during processing, the easier it is for the cod to be kept fresh.
▲ The processing staff is processing fresh cod, taking only the fillets on both sides of the fish
▲The fishing site of cod
<h1 class="pgc-h-arrow-right" > "life-saving" cod, "useless" fish head? </h1>
According to historical records, there was a large-scale famine in the northern part of the Korean Peninsula, and the crops were not harvested for three consecutive years. Due to severe food shortages, many people have been starved to death. At the same time, the resources of narrow cod in the Pacific Ocean are extremely rich, and the narrow cod caught by fishermen has fed many people, and the narrow cod has become a "life-saving fish" for the Korean people.
Later, the cod was greatly welcomed by the local people as the "Mingtai fish", and it is said that the Koreans can also use the Mingtai fish to make more than 30 different dishes. Unfortunately, after the 1990s, cod resources near the Korean Peninsula declined sharply, and the main production area of cod gradually shifted northwards to become russia's Sea of Okhotsk and Bering.
▲The main production areas of cod: Bering Sea and Okhotsk Sea
However, this history has always been remembered by locals, and even now, dried cod is still one of the favorite seafood of North and South Korea.
Looking at the world, the United States, Canada and European countries are traditional consumers of cod, and cod fillets as white as gelatin are popular with consumers.
In the international market, the more common cod are narrow cod, blue cod, Pacific cod, Atlantic cod, haddock and so on. However, no matter which kind of cod, the head will be removed during processing, and only the torso position will be retained.
Around 2008, Yantai's aquatic product processing plant imported about 150,000 tons of cod from abroad, and produced 30,000 tons of scrap material every year. Most domestic processing enterprises will use fish heads, fish bones, fish skins and tails as scraps, and finally sell them to feed mills at a price of several hundred yuan per ton.
Cod heads are not very valuable, which also has a lot to do with the nutritional value of fish heads.
Domestic researchers have analyzed the nutritional composition of the head of the blue cod, and the results show that the water content of the fish head is as high as 75.34%, the crude fat content is 6.72%, and the crude protein content is 13.7%. Overall, cod heads are overwhelmingly watery and have a relatively low nutritional value – and therefore correspondingly, the economic value is low.
< h1 class= "pgc-h-arrow-right" > cod have no head, which is also the result of market choice</h1>
In foreign supermarkets, cod is generally vacuum packed in the form of fillets, and the price is not cheap. In Europe and the United States, almost no one eats cod heads, and even in South And North Korea, cod heads are not welcome – consumer choice directly leads to cod heads being sentenced to death by the demand market.
According to the dietary habits of Europeans and Americans, spineless white fish fillets are the most popular ingredient. Before 2010, cod and salmon were the most popular aquatic products among U.S. consumers, and by 2010, Asian tilapia "swept" overseas markets and gradually became the most common fish products in the United States, with low market prices and high competitiveness. Like cod, tilapia is often processed into fillet vacuum packaging, and the texture of the flesh is somewhat similar to that of salmon.
In China, the price of cod ranges from 40 to 400 yuan / kg, some of which are impersonated by low-value fish such as oil fish, not real cod. The authenticity of the cod that goes to the head is difficult to distinguish, giving bad businesses an opportunity to take advantage of it, and many consumers have paid the "IQ tax" because of this.
In addition, the quality and taste of "cod" from different origins vary greatly, and the grades of ingredients to which they belong are very different, so the price difference is also very large.
Generally speaking, the highest quality cod in the country is silver cod (French cod or Antarctic cod), which is compact and sweet, and has a faint creamy aroma, which is most suitable for frying. However, this is not really a "cod" in the true sense of the word, but a small scaly canine tooth Antarctic fish (also known as Chilean cod) from the South Pacific Ocean.
▲ Canine tooth Antarctic fish (Antarctic silver cod)
▲ The flesh of the Canine Tooth Antarctic Fish is very similar to that of cod, and both are genuine high-end goods
In taxonomy, cod in the true sense refers to Pacific cod, Atlantic cod and yellow-lined cod, and what consumers really hate is those fake low-value fish, such as bare-lid fish, silver cod and so on. For consumers who do not know the truth, it is likely that they will spend a lot of money and finally buy fakes.
<h1 class="pgc-h-arrow-right" > summary</h1>
Cod will inevitably encounter "severed heads" when processing, which is to facilitate preservation and consumption, but also to obtain maximum economic profits.
However, the severed cod also increases the difficulty of discernment for consumers, and the market chaos emerges endlessly. Whether it is high-value canine tooth Antarctic fish or low-value bare-lipped fish and oil fish, when these aquatic products are displayed in front of consumers in the form of fish fillets, it is really difficult to distinguish between true and false.
The cod consumption market at home and abroad also needs to further strengthen control, and the vital interests of consumers can be protected by improving the traceability system of aquatic products, which is more real than anything for ordinary people.
Shepherd sea
51,000 fans of high-quality science creators · 29,000 likes
Search
The difference between oil fish and cod Pictures Cod Homely Practices Dad Review Recommended Cod Fishing Cod Documentary Cod Pieces How to Make Delicious Real fake Cod Dad Review
02-28 · Quality scientific field creators
![Parasites in marine fish such as salmon and cod can attack the human urethra![fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)