Recently arrived at the height of summer, the weather is getting hotter and hotter, and all kinds of bacteria have accelerated their own reproduction speed.

According to media reports, in Wenzhou, there is a more than 50 years old Mr. Chen usually fit, recently he went out with his family to travel for three days. After returning home, he found that the family still went to travel before soaking down the black fungus did not eat, so he made a plate of fungus scrambled eggs. He ate half of the plate himself, his daughter ate a small amount, and his wife did not eat. That night, Mr. Chen and his daughter both had diarrhea.

?

"At first did not take it seriously, to the hospital is also as ordinary gastroenteritis treatment." Mr. Chen's wife said. After infusion, the daughter's condition improved, Mr. Chen's situation is increasingly serious: no urine, jaundice appeared all over the body, shortness of breath and more and more difficult. 25 June, Mr. Chen fell into a coma, was sent by the family to the emergency room of Wenzhou Rui'an People's Hospital, and was transferred to the ICU resuscitation. Due to eat in the water soaked three days of black fungus, Mr. Chen appeared multiple organ failure, almost killed.

According to the doctor, this symptom is acute biotoxin poisoning.

So summer eating in the water soaked long black fungus really will be poisoned?

Tadpole first of all, we have to sort out the basic medical concepts, and figure out what is "acute biotoxin poisoning".

Acute biotoxin poisoning refers to a series of clinical syndromes caused by poisonous mushrooms, fish bile, snake venom, bee venom and other biotoxins. Acute hepatic and renal failure is often the main clinical manifestation, and some of them are mainly neurotoxic or blood and muscle lysis. Severe patients are prone to multiple organ dysfunction syndrome, or even multiple organ failure.

There are tens of millions of biotoxins in one ****, the classification is very complicated, and there are only a few thousand of them that we human beings have studied so far. Tadpole once wrote an article about jellyfish toxin, jellyfish toxin is a kind of biotoxin, interested readers can poke here.

Mullein is an edible fungus that grows on top of decaying wood, and it is non-toxic itself. Although it is a type of fungus, it is not poisonous itself like some wild mushrooms.

?

So, in the summer, the fungus will produce biotoxins after soaking in water for a long time?

The answer is yes, for 2 reasons. First, because it is summer, the temperature is high, and in the water, suitable for bacterial reproduction; second, because the fungus itself is a kind of food rich in protein, carbohydrates and fat substances, easy to provide nutrients for bacterial reproduction. In this case at the beginning of this article, the fungus is a medium responsible for providing nutrients for the reproduction of microorganisms such as bacteria.

The bacteria on the fungus will produce and secrete toxic proteins outside the bacterial cells during the growth process. This toxic protein is the biotoxin that Mr. Chen ate when he ate scrambled eggs with fungus in this article. Strictly speaking, this is a biotoxin is a bacterial toxin, general bacterial toxins can be divided into two categories, one for the exotoxin (Exotoxin); it is a kind of toxic proteins, bacteria in the growth process secreted outside the bacterial body of the toxic substances, the production of exotoxin bacteria are mainly gram-positive bacteria, such as diphtheria bacillus, tetanus bacillus, Clostridium botulinum, Staphylococcus aureus, as well as a small number of gram-negative bacteria. negative bacteria. The other group is endotoxins (Endotoxin), which are products of the cell walls of gram-negative bacteria.

These biotoxins in the fungus scrambled eggs are actually proteins, because the fungus is not fried fried, so these toxic proteins are not denatured, or maintain the toxicity, in order to make these toxic proteins denatured, it is best to overheat the oil hot fried. So, from this point of view, the summer cold fungus may also be toxic, always make sure that the fungus has not been soaked in water for a long time and spoiled. If you have finished soaking the black fungus but have not made this dish for a while, then put it in the refrigerator to chill.

Therefore, you should pay attention, if the room temperature is above 20 ℃, especially in the summer heat, the fungus spoils very quickly. When the fungus is foamed in water for more than 8 hours, the bacteria caused by the deterioration have the potential to produce a dose of biotoxins sufficient to produce a toxic reaction in humans. Therefore, it is recommended that you do not eat black fungus that has been soaked in water for more than 8 hours in the summer to prevent poisoning.

Author: Tadpole Jun