When the crab roe becomes large and bright orange, it shows that the gonad of the female crab has matured. At this time, crab eggs are produced and excreted, and the egg cells left in the gonads in the body still belong to crab yellow.

The ovaries and digestive glands in crabs are orange and delicious. Crab yolk is not a crab egg. Although its composition is basically the same as crab roe, there are essential differences between them. Crab yolk does contain eggs that have not been excreted, but there are other crab organs, glands, tissue fluids and other substances, not just crab eggs.

Crab yellow is rich in nutrients such as protein and phospholipids, but it also contains high content of oil and cholesterol.

Crab yolk can be made into many delicious foods: crab yolk porridge and so on. There is also a famous delicious snack on the beach-crab powder cage. As the name implies, the main ingredient is crab roe. There are two kinds of crab yellow: river crab yellow and sea crab yellow.

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Crab yellow can be fried, burned, marinated and stuffed. Crab yellow is the top grade, bright in color, orange or dark yellow, clean and free of impurities, fresh and refreshing in taste, dry and sufficient. Crab yolk is oily and should be sealed and preserved. Most people can eat it, and patients with coronary heart disease, hypertension, arteriosclerosis and hyperlipidemia should eat less or not.

According to the "Food Classics", female swimming crab has the effects of appetizing, moistening lung, tonifying kidney and strengthening yang, nourishing blood and promoting blood circulation. Among them, crab roe has the highest nutritional value. Rich in trace elements, collagen, calcium, phosphorus and other essential nutrients, it is known as "gold in the sea".

Male crabs have seminal vesicles, and white material in them is sperm. The sperm and sex organs of male crabs are crab paste.

Crab paste may also be fat. Because in order to prepare for the winter, male crabs gradually accumulate fat and grow into crab paste (commonly known as crab oil). Peeling off the shell of the male crab, you can see that there is a white sticky thing in the crab shell and crab tuo, which is crab paste (crab oil). After cooking, crab paste becomes translucent. The more crab paste, the stronger the male crab.

In the wild environment, in September of the lunar calendar, the crab roe of the female crab grows the most plump; /kloc-In October, the crab paste (crab oil) of male crabs grows thickest. Therefore, eating crabs used to be called "nine females and ten males". It means: eat female crabs in September and male crabs in October.

References:

Baidu encyclopedia-crab roe