Why eat crabs at the autumnal equinox?
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Why eat crabs at the autumnal equinox?
The autumnal equinox season is the most fertile and nourishing time for crab meat. Crab is a valuable aquatic product with tender and delicious meat. Not only that, crabs also have extremely high nutritional value. Their protein content is several times higher than that of pork and fish, and they are rich in nutrients such as calcium, phosphorus, iron and vitamin A. ..
There are many kinds of crabs. There are about 600 kinds of crabs in China. Crabs can be divided into fresh water and seawater. The most famous genus of freshwater crabs is "hairy crabs", commonly known as river crabs, hairy crabs and freshwater crabs. Generally, it matures from September to 65438+ 10, and it is in the autumn equinox every year.
Common swimming crabs and flower crabs on the market are all sea crabs. Due to the wide distribution of sea crabs, the mature season of sea crabs varies from place to place. Generally, from south to north, March-May and 9- 10 are the peak seasons for production, and the Liaodong Peninsula in Bohai Bay has more output from April to May. Choose the right season to eat crabs. The autumnal equinox is the mature season of crabs, which tastes fat and fragrant. Other seasons are thin and tasteless.
The benefits of eating crabs
Anti-infection, promote wound healing
Crabs contain a lot of protein, most of which are high-quality protein, and also contain amino acids, which can increase lymphatic immunity, promote wound healing and resist infection.
Detoxification effect
Arginine can participate in energy metabolism and detoxification in the body. Eating crabs in moderation can promote the energy balance of the body and play a good role in expelling toxins from the body.
Tumor prevention
Crabs also contain a lot of selenium, and the selenium content per100g of crabs is as high as 56.7 micrograms. Foods with high selenium content can improve human immunity, prevent tumors and fight cancer.
Rich in vitamins
Crab is rich in nutrition and contains many vitamins, among which vitamin A is higher than other terrestrial and aquatic animals, vitamin B2 is 5-6 times higher than fish, 6- 10 times higher than fish and 2-3 times higher than eggs. The content of vitamin B 1 and phosphorus is 10 times higher than that of common fish. Every 65438 000g of crab edible part contains 65438 07.5g of protein, 2.8g of fat, 65438 082mg of phosphorus, 65438 026mg of calcium and 2.8g of iron. Crab shell is not only rich in calcium, but also contains crab red and crab yellow
How to choose high-quality crabs
Look at the crab shell. All shells are dark green with light, thick and strong; The back of the shell is yellow, mostly thin.
Second, look at the navel. The navel protrudes, and a boat is fat; Most dents lack fat.
Third, look at the claws. All hairy feet are old and healthy; However, if the pliers have no fluff, the body will be soft.
Fourth, look at vitality. If you turn the crab upside down, you can turn it back quickly with a stinger, which has strong vitality and can be preserved; Irreversible vitality is poor and cannot be preserved for a long time.
Fifth, look at men and women. In the lunar calendar, female crabs are selected in September and male crabs in October. The female crab eats yellow and the male crab eats cream. Pick a female crab and see how many layers there are under its round navel. Generally, three layers are delicious and full of butter and oil; When it grows to the fifth floor, the yellow is very hard; Pick a male crab and see if the two pieces on the triangular navel are yellow. When yellow, there is cream. If it is white, it may be an empty shell crab without cream.
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