The body has a bulge. The head and chest are spindle-shaped, with some slight protrusions, and there are two obvious protrusions on the surface, namely the stomach and the heart. The back color of male Portunus is dark green, while the back color of female crab is purple, but the abdomen color is grayish white. There will be nine serrations on both sides of the swimming crab, and the last serration is particularly large and will extend to the left and right sides.
Nutritional value of Portunus trituberculatus
Portunus trituberculatus is white in meat, fragrant and refreshing. In fact, the meat of Portunus trituberculatus contains a lot of protein, but little fat and sugar. It is a veritable food with high protein, low fat and low sugar, which is suitable for nourishing.
Both crab yolk and crab paste of Portunus trituberculatus contain some fat, but the fat of Portunus trituberculatus is different from that of terrestrial animals. The fat of Portunus trituberculatus is mainly unsaturated fatty acid, which has great effects on human blood system and nervous system, and is an effective component for reducing blood lipid.