Tetraodontidae (puffer fishes) is a generic term for the bony fish of the carp family, commonly known as the puffer fish. (Note: The name of the puffer fish is wrong, but it is widely used. The puffer fish can also be referred to as a freshwater mammal.) Since ancient times, puffer fish that have been eaten in China have lived in the river, and when they catch water, they buzz like pigs. It is named the river "dolphin". In addition, “bubble fishâ€, “blood belly fishâ€, “puffer fishâ€, “gas drum fish†(Jiangsu, Zhejiang), “squid, chicken bubble†(Guangdong), “hold†(Guangdong), “turtle "Fish" (Guangxi), "Street Fish" (reading in South Fujian dialect) (Fujian), "Caradel" (Hebei), "Marine Fish", etc. In ancient times, it was called "Lung Fish".
After another year of eating puffer fish, we all know that the puffer fish is poisonous, but it still can not withstand his delicious, puffer fish is very delicious, people who eat will unconsciously fall in love, the following article The details of pufferfish will be introduced in detail for everyone.
Where are the poisonous puffer fish
Hesperidin is a colorless, needle-like crystal that belongs to the acid-resistant and heat-resistant animal alkaloids and is one of the most toxic non-protein substances in nature. One-fifth of it will be able to anesthetize nerves within 30 minutes, with a minimum lethal dose of 0.5 milligrams to the human body. However, this extremely strong toxin can dissolve into water and is easily soluble in dilute acetic acid. It starts to be carbonized at 240°C. In a weak alkaline solution (treated with 4% sodium hydroxide for 20 minutes), it is immediately destroyed as a glucose compound and loses its toxicity. Heating at 100°C for 4 hours or 115°C for 3 hours, or 120°C for 30 minutes, or 200°C for 10 minutes, completely destroyed the toxins and disappeared.
The most toxic part of the pufferfish is the gonads, ovaries, and liver, followed by the kidneys, blood, eyes, tendons and skin. The puffer fish contains less toxins. Tetrodotoxin is one of the most toxic non-protein poisons found in nature. Its virulence is equivalent to 1,250 times that of sodium cyanide. The toxicity of a puffer fish is enough to kill dozens of people. This toxin often causes nerve numbness and vomiting, which can lead to heartbeat and respiratory arrest.
Gonad
It is the ovaries and the testis. The ovaries are highly toxic and are one of the most virulent toxic components of the river raft. Testis is micro-toxic or non-toxic; ovary and testis are oblong, located in the back of the abdomen, near the anus. Both during the reproductive period, easy to distinguish, the testis is milky white, ovary is light yellow; cross-section, the testis was white milky, but the ovary is granular; but after the autumn because of the reproductive period, the ovaries and the testis are atrophy. The two are more difficult to distinguish.
liver
It is a relatively long organ, located on the right side of the abdominal cavity, with an enlarged stomach, and the lower tip is near the anus. It is gray-brown and has a green gallbladder inside. The liver is a highly toxic part of the river eel. When eclipsing the eclipse of the river, special attention should be paid to the removal of food before eating. Artificial breeding can be eaten after frying.
Skin and blood
The amount of skin poisoning varies according to the species of river otters. The skin of the river leeches has little or no toxic content. Blood, especially the two so-called spinal blood clots, that is, the spleen, are highly toxic.
stomach
The stomach is very large and can inhale water or air to make it inflate. The stomach is the intestine. The intestine makes an anus in the abdominal cavity for two-folding. The stomach and intestines are poisonous, but the toxicity is much smaller than that of the ovary and liver.
muscle
The muscles can be considered non-toxic, so it is not poisonous to dig up the internal organs of the river rafts, peel them and clean them. However, after a long time after the death of the river turtle, the internal organs of the toxins dissolved in body fluids, a long time, you can infiltrate the muscles, we must prevent. In particular, it is safer to make fillets (fish raw) and dip with 2% to 5% lye.
The ovaries and liver of Hesperiidae are the second most virulent organs in the viscera of the gizzard. The amount of poisonous substances in these gizzards varies from season to season. From February to May every year, it is a period of ovarian development with high toxicity. After 6 to 7 months, the oviposition period has passed, the ovarian atrophy, and the toxicity has also weakened. The liver and ovary are the same, and it is generally also highly toxic in the spring. In addition, the amount of toxic substances in different types is also inconsistent, and even if they are of the same type, they may not even contain toxic substances. Generally, females are more toxic than Bichon.
We have studied the toxicity of dark-shouldered eastern dolphins. Ovary, muscle, testis, and liver of 3rd-age (2nd-winter-age) sexually mature Obsidian oriental dolphins have been tested for toxicity in mice. If the virulence of 1000 murine units (ie, MU) that is equivalent to a toxic river viscera 1g can make mice kill 1kg to calculate, the virulence of ovarian, muscle, testis is less than: 6.6MU, 4.5MU, 8.1MU. 0.0005 g of scorpion toxin is enough to kill 2 pounds of the puppy. Once poisoned, the person is poisoned and has a rapid onset of toxicity, and is generally unable to rescue.
The river catfish is a treasure that is a river toxin, has a wide range of uses in medical treatment, can be made of detoxification agents, anesthetics, sedatives, etc., can also be used for interventional treatment of cancer.
In addition, when the pufferfish is slaughtered, it can cause poisoning if it is inadvertently injured by a small thorn in the mouth of the fish. In addition, the toxicity of puffer fish is related to the season and the puffer fish's reproductive cycle. In the late summer and early summer season, the puffer fish has the greatest toxicity. It is recommended that citizens do not eat at this time.
The nutritional value of pufferfish
1. The pufferfish is sweet and warm. poisonous. In addition to rheumatism, Spleen dampness.
2. Puffer fish contains protein, fat, vitamins A, B1, B2 and niacin, calcium, phosphorus, iron, and its toxic substances, tetrodotoxin, puffer fish, etc.
3. There are many kinds of puffer fish, most of them are poisonous and their toxicity is different. In terms of tissues and organs, the most toxins are found in the ovary and liver, followed by the spleen, intestines and skin. The meat is almost non-toxic. Even the most poisonous puffer fish contains very few toxins in its flesh. Tetrodotoxin has analgesic effect.
Eating Pufferfish Season
Spring ~ ~ spring puffer fish is the most fat best to eat ~ ~ "three bamboo shoots out of two, Spring Plumbing duck prophet. Artemisia halodendron buds short, it is pufferfish want to be on." The above poem is evidence ~ ~ ~ The ancients began to understand ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~
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