China's medical knowledge about the medicinal value of crabs has a long history. According to the prescription, "tonify bone marrow, nourish liver and stomach yin and pus, and reinforce steel bars to promote blood circulation to treat cellulitis". Modern Dictionary of Traditional Chinese Medicine says that their main indications are: "clearing away heat and dissipating stagnation, continuing major injuries, hurting tendons and bones, treating scabies and rubbing burns". Delicious hairy crabs are well known. And the nutritional value of this delicious hairy crab. In edible crabs, water is 80g/100g, protein14g, fat is 2.6g, carbohydrate is 0.7g, calcium is 0.14g, and phosphorus is 0.19g. Crabs are also rich in substances called astaxanthin and carotenoid astaxanthin, which are the main pigments of crustaceans such as shrimp, Honghu hairy crabs and salmon. Brown and reddish brown powder, melting point 224°c, insoluble in water, soluble in most organic solvents such as ethanol and propylene glycol, and easily absorbed by light, enzyme, heat and oxide.
Protein is the foundation of all life activities and the genetic material of human growth, development and reproduction. For example, there are 20 kinds of main amino acids in protein, and there are more than 10 kinds of crabs. Therefore, postoperative diseases and chronic consumptive diseases consume a lot of protein, and it is healthy to supplement nutrition for those in need. In addition, crabs contain more vitamin A, which is helpful for the skin around the eyes. Children's rickets and osteoporosis can also supplement calcium for the elderly.