Autumn is a good time to eat crabs every year. As a delicacy, hairy crabs have been favored by people since ancient times. So, as a food user, how much do you know about hairy crabs?
1. The nutritional value of hairy crabs
Hairy crabs are rich in nutrients such as protein, fat and minerals. The edible portion of each 100 grams of crab contains 17.5 grams of protein, 2.6 grams of fat, 267 mg of cholesterol, 126 mg of calcium, 2.9 mg of iron, 3.68 mg of zinc, and 182 mg of phosphorus. Vitamin A in hairy crabs is higher than other terrestrial and aquatic animals. Vitamin B2 is 5-6 times that of general meat, 6-10 times that of fish, and 2 to 3 times that of eggs. Vitamin B1 is 6-10 times higher than ordinary fish.
2. Where does the attractive aroma of hairy crabs come from?
The reason why hairy crabs are so delicious is that their meat is rich in umami substances such as glutamic acid, alanine, and glycine. Crab yellow (also known as pancreatic liver) of hairy crabs is the organ used by crabs to store nutrients and absorb nutrients. Most of them store lipids, and free fatty acids are rich flavor precursors and flavor substances. Therefore, the unique flavor of hairy crabs comes from the joint effect of a variety of flavoring substances.
3. Does the content of heavy metals in hairy crab exceed the standard?
Hairy crabs are rich in various minerals, but at the same time, they are easy to accumulate heavy metals such as lead, cadmium, and chromium. Will the heavy metal content in hairy crabs exceed the standard? There is no food safety risk under normal consumption. In addition, the safety of properly cultured hairy crabs is relatively guaranteed. Even so, it is not recommended to buy hairy crabs from unknown sources.
4. The correct way to eat hairy crabs
The daily intake of fish, poultry, eggs, and lean meat is about 120 to 200 grams. In terms of conversion to hairy crabs, if you are healthy and have no special circumstances, you can eat 2 crabs a day. Hairy crabs are high-protein and high-cholesterol foods. Excessive protein intake can easily cause a burden on the digestive system. For people with sensitive stomachs or suffering from high blood pressure, high blood lipids, high cholesterol, and hyperuricemia, it is recommended to eat carefully. In addition, crab meat is rich in protein and is extremely perishable. Once eating stale crabs, it is likely to be poisoned or infected with bacteria and cause diarrhea and high fever. Dead crabs decompose toxic histamine in their bodies, so it is not recommended to consume them.
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