The river crab is the small crab we usually see, and the maximum is no more than 100g. Hairy crabs are what we commonly call hairy crabs, the kind with long hair on big pliers. Crab is their general name, and different places have different names.
a
It can be said that hairy crabs are river crabs, because hairy crabs are a kind of river crabs, also known as Eriocheir sinensis, which are widely distributed in lakes, rivers and other places, while hairy crabs are widely distributed in the Yangtze River system in China and have the most delicious taste. Generally speaking, hairy crabs refer to Eriocheir sinensis in the Yangtze River system.
Hairy crabs: green back, white belly, full claws, yellow hair and strong body, which are different from the gray and earthy colors of crabs in other lake areas; When cooked, red is light gray.
Eriocheir sinensis: Except the feet and abdomen, the abdomen of Eriocheir sinensis is gray, and the head and chest are connected together to form the head and chest, which is the main part of the crab body; Its back is covered with a layer of square hard carapace, which is uneven but symmetrical. The volume of ordinary river crabs is obviously smaller than that of hairy crabs.
b
Compared with ordinary river crabs, hairy crabs are more delicious, and it is not easy to find them if they are not eaten regularly. If you often taste it, you will find that the meat of hairy crabs is tight, smooth and tender, the entrance is slightly sweet, the female crab is full of crab yellow, and the male crab is rich in cream. Although the meat of common river crabs is fresh and tender, their taste is not as good as that of hairy crabs, and crab roe is not as rich as hairy crabs.
The content of purine in crabs is also high, but miscellaneous grains porridge is rich in potassium, which can promote the excretion of uric acid. In addition, eating porridge in advance will increase satiety, so eating crabs will be relatively less and the burden on the stomach will be reduced.
When eating crabs, it is best to have ginger and vinegar. This is because crabs are cool, while ginger is warm, which has the effect of warming the middle and dispelling cold and detoxifying. In addition to seasoning, vinegar also has certain antibacterial effect.
c
River crabs and sea crabs have their own advantages in nutrition. At the same weight, the contents of vitamin A, vitamin B 1, vitamin B2 and vitamin E in river crabs are higher than those in sea crabs, but the contents of calcium, potassium and magnesium are lower than those in sea crabs. As far as cholesterol is concerned, the content of river crabs is more than twice that of sea crabs, and that of protein is slightly higher than that of sea crabs.