Buy home the fish cut open the stomach, may find that the abdomen on both sides of a layer of gray-black film, looks like stained with "dirt". Many people say, this layer of black mucous membrane is the fish belly a variety of harmful substances in the convergence layer, is very fishy, earthy flavor of the strongest position, with a lot of lipids, lysozyme and other organic matter, must not eat, eat will be harmful to health. But in fact, this layer of black mucous membrane but is the normal physiological structure of the fish body, it looks black, but this gray-black and environmental pollution is not associated. The black gown in the fish belly is not a sign of serious pollution, gray and black just pigmentation. But this layer of membrane itself is high in fat content, nutrient content is not too high, but also easier to gather some fat-soluble pollutants, is not a healthy selection of physical and mental health. Seeing the strange to get rid of, it is too much trouble to do together to eat, eat up also no harm. Gray-black membrane coat,

is actually the protective membrane in other words, the fish belly on the lining of the uterus tends to highlight the gray-black is through the body of the melanin component of the impact. Previously, experts have long been 78 species of fish to carry out research and analysis, scientific research results found that in fact not all fish peritoneum after the tone is black, gray-black peritoneum after the fish species only 20 kinds of diversity. Take you often eat grass carp as an example, grass carp body contains pigment cells key there are four, which is usually yellow pigment, melanocytes, red pigment and its gum pigment, it is gray-black peritoneum after the surface layer is due to the surface layer of melanocytes, the peritoneal wall layer of the gum pigment body cell accumulation. When we see the "black matter" case,

always feel that this thing is very dirty, it must be environmental pollution. In fact, the black mucous membrane on the fish belly is not as bad as you think, and it is very unreliable to use it to distinguish the environmental pollution and endotoxin staining condition of fish. In fact, the fish belly in the "black mucous membrane" is through the fish body pigmentation and the ability to produce, usually with the maintenance of internal organs and smooth effect, and environmental pollution really does not have a direct impact. It has no direct effect on environmental pollution, and the color of the film varies depending on the melanin in the fish's body and the species of the fish. Although this black mucous membrane is not related to environmental pollution, but the key to this layer of membrane is composed of fat tissue, fat rate is very high, and very easy to gather some fat-soluble pollutants,

Naturally, because of its composition is relatively limited, so even if you eat it is also not a matter of concern, and do not have to worry about how much physical and mental health will be jeopardized. But if you don't mind the hassle, it's okay to get rid of it. There's no need to worry too much about it. Therefore, although the film in the fish belly is black, but also can not show that it is harmful, it is not a symbol of the level of environmental pollution, eat on the human body is not harmful; naturally, special attention is the black film with a high fat content, nutrients are not too high, eat before getting rid of it, and do not need to guys so "labor".