Seafood Cold Knowledge

Refuse shark's fin, start from me!

I. Is shark's fin really nutritious?

Shark fins are people's mind "high-level nutrients", referring to sharks, crocodiles and silver shark fins in the cartilage, commonly known as the wing tendons.

The nutritional value of shark's fin is actually overstated, its main component is protein, but the quality of protein than eggs and meat; from the unsaturated fat, as with ordinary marine fish, there is no special value.

The flavor of shark's fin soup mainly comes from its ingredients not the shark's fin itself!

Second, the identification of real and fake shark's fin

True shark's fin

True shark's fin is white before soaking, cooked is crystal clear translucent, good toughness; real shark's fin is slightly rounded at one end, and at the other end is a gradual thinning of the needle, between the wing needle wing meat is connected.

Fake shark's fin

Fake shark's fin is golden yellow, soaked and cooked will still be yellowish brown; synthetic fans are very brittle, not only no wing meat at both ends are also generally thick and thin cut surface.

Three, the grade distribution of shark's fin

1, according to the color, there are yellow, white, gray, green, black, mixed (yellow-white) and so on the six kinds of yellow, white, gray, three kinds of color for the best.

2, according to the origin and baking method, there are freshwater, saltwater freshwater wings sun-dried or impregnated with lime water, the quality is good; saltwater wings impregnated with salt water, the quality of the second.

3, according to the shape of the complete or not, after the rise of the whole wing is called row of wings, for the top quality; scattered into a line of loose wings for the second best.

Four, why does shark's fin contain mercury?

Shark fins contain a lot of mercury, mainly from the sea water pollution of the sharks' living environment.

Methylmercury spreads rapidly in seawater and accumulates in aquatic organisms step by step, and sharks, which are at the top level of the food chain, accumulate methylmercury in large quantities in their bodies.

We can do very serious harm to our bodies by consuming shark fins that contain large amounts of mercury. It is better to eat less shark fins!

Fifth, the sharks suffered from extinction

Because shark fins are touted as the holy food, people are driven by profiteering to hunt and kill sharks in large quantities.

According to incomplete statistics, the number of sharks slaughtered for shark fins can reach 70 million each year, and the number of sharks is rapidly decreasing. There are 110 species of sharks on the brink of extinction, and some shark populations have declined by as much as 80 percent in the past 50 years.

No sale, no kill, protect sharks and start by refusing shark fins.