Can the marine product be eaten

Can the marine product be eaten
Assistant Researcher of research institute of environmental medicine of military hygiene of academy of medical sciences Chen WeiQiang
It is reported that Xiamen the intersection of city and specific the intersection of community and 53% 0~3 year old infant the intersection of mercury and content reach or exceed the normal cordon in the body recently. According to the investigation, these children are all used to eat ocean fishes and marine product. The environmental pollution of sea area has already become the global problem now, people can't help asking - -
Recently, the security question about the aquatic products is made well know publicly for a time, make ordinary consumers at a loss as to what to do. Take ocean fishes to be anxious and disadvantageous to health, wipe out, afraid heavy metal exceed standard also. This is really a choice of facing a difficult choice. But if we eat the marine product selectively, can give consideration to the nutrition and health.
The fish with big bodily form are high in mercury content
Because industrial sewage, waste material are discharged into the sea, make many marine water areas polluted, thus make the marine organism especially fish, shellfish receive corresponding pollution. Among them, the pollution of mercury is more serious in the sea water, some deep-sea fish with bigger bodily form, the content of internal mercury is higher than other fish. But it is unnecessary for us to refuse the marine product because of this.
As our country imports the increasing of the efforts of inspection and quarantine, so long as the deep-sea fish that the regular channel is sold, generally speaking can rest assured to eat. For cultivating the aquatic products, no matter sea water fish, or fresh-water fishes, the key is to see that it accords with the sanitary standard to cultivate the environment, so long as not in the fish that are polluted and cultivated, caught in water quality, are all safe.
To the common aquatic products, arrange with the level order of security, sea water fish's security is the highest, secondly desalinize and cultivate the sea water fish, the end is the fresh-water fishes. Because sea water flowability is big and high in salt, sterilize function itself, the deep-sea fish such as salmon fish is safer than the inshore fish. And rivers water quality are relatively easier to be polluted, there is much parasite's content, it is relatively great to infect the coefficient. It is between two to desalinize the security of cultivating sea water fish. In addition, the system of tracing to the source of the food security prevails in the world at present, the fish are from born, growing up, how not to catch after getting, process,until at there last records historical is dining table,be one whole roller chain of supervision systemsed. So, as to the security question of the aquatic products, so long as come from the regular channel, needn't be too anxious.
Don't refuse the deep-sea fish
The so-called deep-sea fish, refers to in the ocean the depth of water exceeds the fish that survived under 200 meters of environmentses, the common ones mainly include tuna, salmon fish, tooth a fish, tiger's spot, blue and green spot, ten multi-type with fish, bonus fish,etc. of horse. With having roach, salmon fish and tuna,etc. to see more one in the restaurant on the market. Because the deep-sea fish has very high nutritive value and good health effect, it has been the healthy food that consumers praise highly all the time.
The deep-sea fish contains abundant polyunsaturated fatty acid, 22 carbon six alkene is sour (DHA) With 20 carbon five alkene acid (EPA) Sources best,development for brain, last intelligence and last fat of blood supersession, last cardiovascular vessel the health,etc.s is getting more beneficial very. Except deep-sea fish is rich in minerals such as calcium, zinc, iron, selenium, potassium, iodine,etc., also contain more lipid-soluble vitamin A, D, E and water soluble vitamin B1, B2, B6, B12,etc.. Japan, Iceland with longest average life expectancy,etc., eats deep-sea fish's more countries in the world.
The nutritive value of the deep-sea fish is that it was substituted that the general food is very difficult, from the viewpoint of this, growing up healthy and sound to people especially infant and pre-school children of deep-sea fish is very important, don't refuse easily.
Eating the fish changes assortment frequently
Then, how to select and edible the deep-sea fish scientifically and rationally? These points can let us give consideration to health and nutrition.
First, must guarantee the source of the aquatic products is regular, does not buy street peddler's goods of unknown origin of roadside.
Second, try different types of more fish, is not limited to the same assortment, want fish, interval of fresh-water fishes of sea water to be eaten. The nutrition that not only can be balanced like this, can also reduce the risk of taking in the noxious substance.
Third, choose, grow the intersection of cycle and short or the intersection of bodily form and relatively little fish, the intensity that such fish are polluted can be relatively light, the content of internal harmful substance is lower, therefore is relatively safe.
Fourth, should deal with and process and cook correctly. If after the living fish buy back home, can be raised and for one or two days with the fresh water; If is the icy fish already slaughtering, can soak for an hour with the fresh water first. Wash the fish before cooking, especially fish's gill's part must be removed.
In addition, the position harmful substance of high fat content is apt to gather on fish, for instance positions such as fish's head, viscera,etc., the degree of pollution is relatively high, should avoid eating. Want, try hard well-done steaming completely or frying to familiar with cook, in order to kill pathogenic microbe of fish in the body.
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