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What is the white thread pulled out by the shrimp head? Is the white thread pulled out by the shrimp

What is the white thread pulled out by the shrimp head? Is the white thread pulled out by the shrimp head a parasite

Sihaiwang: shrimp is an indispensable delicacy on the Chinese table. It is delicious for all ages, whether eaten raw or cooked. Moreover, shrimp has rich nutritional value and is also a nourishing delicacy. Friends who often eat shrimp all know that there will be a white line in the head of shrimp. Some people say that it is the digestive system of shrimp. There are a lot of bacteria in it. Others say that the white line is a parasite. So what is the white line on the head of shrimp? The following little editor will accompany you to uncover the mystery!

Recently, a small video circulated in the circle of friends really scares the vast number of foodies: in the video, a person cuts the head of a shrimp and picks out two long and thin white lines with a needle. The video producer said it was a parasite in shrimp and warned netizens to eat as little shrimp as possible to avoid being harmed by parasites.

Why is it always the shrimp that has a problem?

It's not the first time you've heard about the shrimp family, is it?

Crayfish is the most controversial member of the family: the long-standing parasite incident of crayfish has been proved to be a rumor, which can be eaten safely after high-temperature disinfection; eating crayfish causes rhabdomyolysis, which is later proved to be actually the side effect of "shrimp washing powder" used by bad vendors, which has nothing to do with crayfish itself.

There is also a rumor spread for many years: shrimp and vitamin C taken together equals to arsenic. In fact, arsenic is arsenic, and shrimp itself contains arsenic, which is found in seafood. There is also arsenic in the human body, but the content is very small, so you don't need to worry too much.

As a side branch of the shrimp family, skin shrimp has also been shot: not long ago, a small video of a friend's circle said that glue was injected into the skin shrimp they bought. Later, it turned out that the so-called "glue" was actually the shrimp yellow of skin shrimp.

So this time, the white parasite is another deliberate frame up, or is it true?

White thread is parasite? Expert: think too much!

In fact, these two white lines are not parasites, but the testicles of male shrimp.

Generally, the immature testis is colorless and transparent, and it is milky white after ripening. It can be said that it is equivalent to crab's crab cream, which is rich in cholesterol and protein.

This white line is not only prawn, skin prawn and lobster, but also stronger, so it can't be a parasite at all.

In addition, there is little possibility of parasites in shrimp, because:

① generally speaking, parasites will have infection rate, that is to say, not all of them will be infected, and it is difficult to carry a certain insect at will;

(2) according to the spreading pictures, it seems that the 'bug' is very soft, and it was broken in the process of picking it out with toothpick, which is not in line with the common sense. This article is edited and collated by sihai.com. Please indicate the original link of the Reprint: http://www.4hw.com.cn/life/

③ in the breeding environment, if there are so many parasites, the health condition of shrimp will be very poor.

④ if the farmers don't want to lose their blood, they will definitely try to control it. So from an economic point of view, there will not be such a serious parasite infection.

Keep these tips in mind!

A way to identify fresh crawfish

How to identify whether the crawfish eaten in the restaurant is live or dead? It can be judged according to the shape of the Cooked Crawfish: if it is found that the tail of the crawfish is straight, then these crawfish are dead shrimp. Do not eat them. If it's curved and curled up, it means that it's a live shrimp and can be eaten. Crawfish should not be quick fried. If the cooking time is not enough, the parasites in crawfish cannot be completely killed, which is not good for the body. In addition, the crayfish head is easy to accumulate heavy metals and bacteria, it is better not to eat. This article is edited and collated by sihai.com.cn. Please indicate the original link of the Reprint: http://www.4hw.com.cn/life/

Kneading the belly to identify the shrimp with glue

Experts said that after the death of shrimp and other aquatic products, the abdominal cavity and body parts will become soft. If the belly is particularly swollen and hard to pinch, you should be careful of being 'glued'. When cooking, it can be cut along the abdominal part to observe whether there is transparent colloidal substance flowing out of the shrimp body, especially the head connection part. In addition, if it is found that aquatic products produce peculiar smell and gum is not easy to dissolve in cooking, harmful industrial gelatin may be added, do not eat it.

If the shrimp is smaller, it can be eaten with a shell. The calcium content in the shell is higher, but the calcium is not easily absorbed by the human body, but it can play a little role in calcium supplement.

It's all right

Experts say that it may not be fresh for cooked shrimps to have black heads or even fall off, but this is not the case for wild shrimps, which are normal.

When people are fishing for the Arctic shrimp, they use a trawl to pull the shrimp up from the sea bottom at one time. The sudden change of atmospheric pressure may lead to the rupture of the stomach. The stomach of the Arctic shrimp grows on the head. With its transparent shell, the black or brown plankton or algae eaten by the shrimp will spread, which looks like the head is black. Moreover, in the spawning period, there are mature shrimp seeds in the ovaries and dark green in the head. All of these may be the reason for the appearance of "black head" in Arctic shrimp. Eating this "black headed" shrimp is not harmful to human body. If not visually acceptable, remove the shrimp head. This article is edited and collated by sihai.com.cn. Please indicate the original link of the Reprint: http://www.4hw.com.cn/life/

However, for shrimps and other river prawns, if they have become blackheads, it is better not to buy or eat them.

In a word, it's not easy to feel at ease, but don't forget to practice a pair of eye-catching skills to distinguish rumors~