The fish is fishy, is this fish good? Why does fish smell fishy?

1.Open the abdomen of the fish, you can see that there is a layer of black membrane in the abdomen of the fish, this layer of black membrane is the place where the fishy smell is concentrated, and it should be cleaned up when handling the fish, in addition, the fish blood is also the place where the fishy smell is concentrated, and it should be cleaned with clean water.

2.The processed fish can be marinated in cooking wine, vinegar and ginger for a while and then washed and dried;

3.You can put the fish in tea for 5 minutes, and then wash it, and the tea can also remove the fishy.

I. .The freshness of the fish itself.

In ordinary life, there will be such an experience, just bought fresh fish does not smell strong, but with a long time or buy some frozen fish that have been dead for a long time and are not fresh, its fishy smell is very strong.

2. Improper storage can also make the fish fishy.

The freshness of the fish has a lot to do with the fishy smell, so after the fish stops life activities, if the next preservation efforts are done well, then the fishy smell will be relatively light, and if the preservation measures are not done well, the fish will increase the fishy smell in the process of spoilage.

This friend, fish have a special fishy smell, but fresh fish still has a very fresh smell, if fish, shrimp and crab such seafood has a strong fishy smell, then there is a high probability that it is spoiled, of course, it is best to throw it away directly and do not eat! When bacteria multiply and decompose meat, it emits a special fishy odor, which is the initial decay.

Fish are fishy, compared with freshwater fish, the fishy smell of marine fish will be greater, this is a normal phenomenon, it is impossible to judge the quality of fish according to the size of the fishy smell, you can use green onion ginger, cooking wine and other seasonings to remove the fishy when making.

If it is a fishy fish for food, I don't think this fish is a good fish. Because it has a poor taste, there should be very few people who use it.

Generally speaking, the fish in the river are fishy, that is, freshwater fish. Then the fish in the sea are not so fishy, and it is normal for the fish to be fishy, not that the fish are bad.

The fish is fishy, which proves that the fish has gone bad and cannot be used, but if you want to make it into a cured fish, you may be able to eat it.

It is not only delicious, but also rich in nutrients such as protein, which has a good nourishing effect on the human body, so many people like to eat fish. However, in everyday life we are often.

The fish is fishy, is this fish good? If the fish is fishy, it may be because the fish is not fresh anymore.

Summary. There are two kinds, one is marine fish, some people will find fishy, but deep-sea fish will not be fishy.

The second type is pond-raised, field-raised fish (scavenging and grass-eating, fodder-eating fish), which are fishy and muddy because they use non-flowing water, and worse human-raised fish have kerosene smell.

If it is raised in the river, it generally does not smell even if it is fodder.

Tip: When you buy fishy fish, put more cooking wine or squeeze some lemon juice.

What fish tastes particularly fishy?

There are two kinds, one is marine fish, some people will feel fishy, but deep-sea fish will not be fishy, and the second is pond-raised, field-raised fish (scavenging and grass-eating, feed-eating fish), because it uses non-flowing water, so it is very fishy and smells of mud, and the fish raised by people in worse places smell of kerosene. If it is raised in the river, even if you eat feed, it will generally not smell fishyTip: buy fishy fish, put more cooking wine, or squeeze some lemon juice.

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The fishy smell of fish is mainly due to the smell of trimethylamine in the fish body, but also the fishy smell in fish oil.

Dead fish can also produce a fishy odor when their body fat is oxidized and rancid. Fish meat contains a lot of umami trimethylamine oxide, this compound is easily reduced to trimethylamine after the fish dies, and trimethylamine is completely different from trimethylamine oxide, which not only makes the fish lose its umami, but presents a fishy smell. The body fat of the fish contains whole acids, which has a special fish oil smell and also presents a fishy smell.

Fish are fishy because a large part of the total nitrogen in the final products of marine fish metabolism is in the form of trimethylamine oxide, volatile base, betaine, choline, etc.

These nitrogenous substances in fish are generally soluble in water, so the fish can be stewed and boiled to reduce the fishy smell. However, the volatility of water and the penetration of the fish body are not as good as some organic solvents, such as ethanol, acetic acid, ethyl cheese, etc., so when cooking fish, add some vinegar (mainly containing acetic acid), and then put some wine (mainly containing ethanol), the effect of deodorization is excellent. When vinegar is added, some of the substances that cause the fishy smell in the fish oil will also become soluble salts, so that the fishy smell is reduced, and the vinegar and wine have an aroma, and they also have the effect of pressing the fishy with incense.

In addition, adding vinegar when cooking fish can also hydrolyze the rich protein in the fish meat under the action of acid, which not only produces many amino acids with umami characteristics, but also makes the bones and bones of the fish soften and fluff during the cooking process and convert them into calcium acetate. Calcium acetate is easily soluble in water, which is convenient for human absorption and improves the utilization rate of calcium.

Because the ** of fish contains a mucus gland, it can secrete a fishy thing (called trimethylamine). This kind of stuff is emitted into the air, and we can smell the fishy smell.

Hello, the fishy smell of fish comes from the metabolism of fish proteins and the spoilage of substances called trimethylamine and piperidine.

Trimethylamine is a gas and is easily soluble in water. Piperidine is also a liquid, with ammonia odor, and the intensity of fishy smell is closely related to the concentration of trimethylamine.

There is a mucus gland in the fish, and the mucus secreted by this mucus gland contains a fishy smell of trimethylamine. At room temperature, trimethylamine is easy to volatilize from the mucus and disperse in the air.

There is a white line on each side of the fish's body, called "fishy gland", and the mucus secreted by this mucus gland contains a fishy smell of trimethylamine. At room temperature, trimethylamine is easy to volatilize from the mucus and disperse in the air.

Popular science: Why does fish have a very smoky fishy smell?

Fish have a fishy smell, but freshwater fish and marine fish have a different fishy smell. The fishy smell of freshwater fish is due to the presence of humus in the living environment, so actinomycetes can enter the bloodstream through the gills of the fish, causing them to contain a fishy smell. The fishy smell of marine fish is due to the fact that it contains trimethylamine oxide, which will become trimethylamine after being decomposed by microorganisms after the fish dies, so it will emit a fishy smell.

1. Why does it smell fishy?

Fish have a fishy smell, but the fishy smell of freshwater fish is not the same as that of marine fish. Since marine fish live in seawater, their own osmotic pressure is lower than that of seawater, so they will constantly lose water, and in order to prevent water loss too quickly, some amino acids as well as amines are needed to fill the cells, which contain trimethylamine oxide. The substance itself has no taste, but when it is broken down by microorganisms, it turns into trimethylamine, giving off a fishy smell.

The fishy smell of freshwater fish mainly comes from the environment, because they live in ponds, lakes and rivers that contain humus, which contain a large number of microorganisms, among which actinomycetes can enter their bloodstream through the gills, causing them to have an earthy smell.

There is a kind of fishy gland in the fish, and the mucus secreted by this mucus gland contains trimethylamine oxide, and when the fish dies, trimethylamine oxide will continue to be deoxygenated and reduced to trimethylamine and diffuse into the air, resulting in a fishy smell.

There is a white line on each side of the fish's body, called the fishy gland, and the mucus secreted by this mucus gland contains trimethylamine oxide. The substance itself does not smell fishy, but once the fish dies, the bacteria in the body begin to break down trimethylamine oxide into amine derivatives, which give off an unpleasant odor. As a result, the smell of fish is lighter when alive and heavier after death (the longer you die, the stronger the fishy smell).

How do you get rid of the fishy smell?

1.When cleaning the fish, you can consciously pick and wash the black membrane in the fish, because the black membrane will emit an unpleasant fishy odor and affect the taste of the fish;

2.Putting some sugar into the pot when cooking fish can effectively remove the unpleasant fishy smell;

3.Orange peel is a good spice, and cooking some with fish can greatly remove the fishy smell;

5.Trimethylamine is alkaline, and putting some vinegar into the pot can partially neutralize trimethylamine, thereby removing the fishy odor;

8.When stewing fish, you can put a little milk in the pot, which can not only remove the fishy smell of the fish, but also make the fish soft and delicious;

9.When frying fish, you can also soak the fish in milk for a while before frying it, or put a few slices of raw potato chips in boiling oil and fry it with the fish, so that the fried fish is not only not fishy but also delicious.