What reason is onion spicy eye? What should I do with it? Is it effective to plug your nose?

Onions, also known as onions, onions, jade onions, onions, Dutch onions, onions, is a classic delicacy on the table. But onions are special and often make friends who cut vegetables love and hate. So what's the reason for the hot eyes of onions? How to deal with onions after spicy eyes? What is the effect of eating more onions?

First, what is the reason for the hot eyes of onions?

Onions make us cry because they release a chemical called lacrimal factor, which irritates our eyes. Simply peeling an onion doesn't make us cry. But if you chop, cut, mash or press it, the onion cells will crack, allowing the two normally separate substances to mix into a powerful chemical weapon similar to tear gas.

The tear gas factor evolved as a defense mechanism that protects onions against microbes and animals like us. Destroying an onion actually causes it to start to defend: as the cell breaks, the chemical reaction is activated.

In an intact onion cell, a molecule called the precursor of sulfonic acid floats in the filling solution.

There is also a kind of sac called vacuole floating in the cytoplasm, which contains a protein called alliinase. The two were supposed to be separate, but destroying the cells mixed the two into chemical weapons.

Onions contain feserone, which can activate signal pathways during nerve cell differentiation and promote the formation of human memory. regular consumption of onions can enhance the connection between nerve cells. some memories are stored in the human brain, so regular use of onions is good for improving memory.

Second, what to do after the onions are hot for the eyes?

1. Put it in the water after cutting it.

Onions are hot because when cut, a volatile substance is volatilized, stimulating the secretion of tears. Fortunately, this substance is soluble in water, so you can quickly cut the onion in half, soak it in cold water, let the irritating substances evaporate, and then take it out and cut it out so that it won't hurt the eyes.

2. Cut in water

In fact, the principle of this method is the same as that of the above method, except that it is faster and operates directly in the water, which is effective, but it requires a little higher patience, and you should be careful not to cut your hand when you cut it. It is more difficult to operate in the water. Be careful.

3. Plug your nose

Inhaling the volatile substances from onions in the nose will also feel very choking, and then it will irritate the eyes. Our noses are usually closer to the onions, so block the passage that irritates the eyes, plug the nose with paper towels, and then cut onions. It's not elegant, but it's effective.

4. Microwave heating

Heat the onion in the microwave for dozens of seconds, so that the substance in it will change. When you cut it again, there will be no volatile matter, and the eyes will not be so hot. When heated, the onion will be peeled better. The main thing is to get rid of those substances that are hot for the eyes.

What are the functions of onions?

Anti-cancer effect. Onions contain quercetin and prostaglandin A, which have anticancer effects. Quercetin has a certain effect on inhibiting the activity of cancer cells, while prostaglandin A can dilate blood vessels and reduce blood viscosity after eating. it plays a certain role in lowering blood pressure and preventing thrombosis.

Prevent colds. Because onions contain allicin, and allicin has the effect of fighting influenza virus and plays a certain role in preventing colds after eating.

After eating onions, allicin also has the effects of expectorant, sweating and diuresis when excreted from respiratory tract, sweat glands and urethra.

Reduce blood sugar, because onions contain ingredients similar to those of the hypoglycemic drug methanesulfonate, which can be produced in the body after eating, and dermatine has a strong diuretic effect. Diabetic patients often eat onions, which can reduce blood sugar and diuresis to a certain extent.

Refreshing, because onions absorbed in the intestines can help human cells make better use of glucose, supply brain cells with energy, and lower blood sugar. For people in low spirits, onions can be used as a refreshing diet.