In terms of containing protein, the quality of protein in shark fin is not as good as that of eggs and meat, and it contains incomplete protein. In terms of unsaturated fat, shark fin, like ordinary marine fish, has no special value.
Extended data:
Shark fin is made by drying shark fin in the sun. Made of dorsal fin is called ridged wing, dorsal wing or split wing, with more wings and less meat. Consists of pectoral fins, called winged wings or upper green wings, with less wings and more meat; Tail hook made of tail fin, hook tip or tail fin; It's called purse-string wing, and its root is made of gluteal fin. Tail fin and gluteal fin have the most meat and the least wings.
Sun-dried fresh water wings or soaked in lime water; Salt water wings are soaked in salt water. Shark fin can also be classified according to whether its shape is complete or not. When it swells up, it becomes a whole wing, called a row wing, which is the top grade; After expansion, it expands into a strip, which is called spreading wings.
1, main origin:
Shark fin is mainly produced in Guangdong, Fujian, Taiwan Province, Zhejiang, Shandong and other coastal provinces of China and the South China Sea Islands. Japan, the United States, Indonesia, Vietnam, Thailand and other places have production.
The shark fin needles in Central and South America are soft, smooth and thick.
2. Fishing process:
China has a long history of catching sharks in ancient times, and sharks are often written as sand fish in ancient books. After sharks are caught, they are usually treated as follows:
(1) Cut off the shark dorsal fin.
(2) Take off the shark skin (because shark skin is very elastic and is a good leather material. In ancient times, many precious swords and scabbard were made of wood and covered with shark skin.
Shark fishing is very cruel, and fishermen usually only cut off shark fins. Then, throw the living shark into the sea and let it die in extreme pain.
Baidu encyclopedia-shark's fin
People's Daily Online-The cruel acquisition process of shark fin revealed that China is a big shark fin consumer.