The ink of cuttlefish is edible. The ink of cuttlefish is the basic substance released when escaping from danger, which darkens the surrounding sea water and blinds the enemy. The cuttlefish rice in Jiangsu and Zhejiang provinces was introduced in detail. Overseas, health products such as bread, cold noodles and fish sauce produced by adding squid ink have already been sold. The ink of cuttlefish contains hydrocortisone, which has certain anticancer effect. The ink of cuttlefish contains anticancer chemicals, which has attracted more and more attention from the masses. The ink of cuttlefish is a precious Chinese herbal medicine after production and processing, which has a very good effect of promoting blood circulation. Octopus is a very popular dried seafood on the Internet in recent two years, and it is the most caught dried seafood by coastal farmers when they go fishing.

Octopus, also known as squid, is an invertebrate in the ocean. Except for the teeth, it is covered with bones. Octopus is called octopus because it has eight tentacles, tv, and its behavior is dexterous. Octopus is a nutritious food, rich in protein and minerals. The fleshy ground of octopus is rich in collagen, so ladies often eat octopus to reduce facial wrinkles, fill skin collagen, improve skin elasticity and slow down aging. Moreover, octopus is a low-fat food and a good ingredient to lose weight. In addition, octopus also has the effects of enriching blood and benefiting qi, and has the functions of enriching blood and benefiting qi and hematopoiesis. Among them, octopus is rich in lysine, which can dredge blood vessels.

Reduce carbohydrates deposited in capillaries, prevent cardiovascular and cerebrovascular diseases, and enhance human immunity. Whether octopus or squid, this cephalopod software seafood usually has an ink bag filled with ink. This ink bag is part of the octopus protection system. When an octopus encounters an opponent's capture, it will spray water on the opponent, which will affect the opponent's vision and paralyze the opponent's taste, so as to get a chance to escape. The main component of cuttlefish juice is water. Because there are many black particles in cuttlefish juice, and there are melanocytes in the internal structure of black particles, cuttlefish juice often appears gray-black.

In fact, ink contains some slight endotoxin, but it has already been deformed under cooking conditions, so it is almost harmless to the body. Not only cephalopods such as octopus, cuttlefish and squid can also release dark brown ink, which is also the correlation of all cephalopods. Cephalopod microorganisms have a very large ink sac around the duodenum, from which black ink is released. The color of black ink released by different kinds of cephalopods is different. Squid ink is all black, giant squid ink is dark blue, and cuttlefish ink is dark brown. The composition of this ink is exactly the same. The key point is that they are all melanocytes, and the composition is high molecular polymer of indoloquinone, which can combine with different protein to produce more complex chemicals.