What good is it for people to cut onions in the room?
There is no obvious benefit.
Onion is spicy and contains calcium, phosphorus, iron, vitamin C, carotene, vitamin B 1, sulfur compounds, flavonoids, phenylpropanoids and other nutrients. When cutting indoors, there is no relevant scientific data to prove that it has the functions of sterilization, disease prevention, in addition to formaldehyde and insect prevention. Moreover, onions have a heavy taste, which will produce odor in the room, which is not conducive to the room.
Can raw onion be cut to treat a cold?
I can't.
Onion contains a capsaicin called propylene sulfide, which can kill many germs and parasites in the human body after eating, and its bactericidal ability can reach one tenth of that of penicillin. It can kill staphylococcus, streptococcus, pneumococcus, typhoid Bacillus, Escherichia coli, dysentery Bacillus and parasites such as hookworm and trichomonas in human body. In addition, Chinese medicine also believes that eating onions has pungent and relieving properties, which can dispel cold and cure colds, but it is cut in the mouth.
Do onions suck formaldehyde in the room?
I can't.
Formaldehyde is a colorless and irritating gas, which can be dissolved in water and ethanol, but cannot be absorbed and removed by onions. But the special smell of onion can mask the smell of formaldehyde to some extent, so that the smell in the room is mainly onion, not the pungent smell of formaldehyde. This method is similar to the operation of putting lemon, orange peel and grapefruit peel, but it has no effect on completely removing formaldehyde. The best and most affordable way in in addition to formaldehyde is to open more windows for ventilation and use air purifiers.
What's the harm of releasing onions in the room?
If raw onions are left indoors for a long time, the following hazards may be caused:
1, feeling unwell
Eating too much raw onion will lead to indoor air pollution, smell of onion, stimulate respiratory tract, nasal mucosa and eye mucosa, and lead to uncomfortable symptoms such as poor breathing, itchy nose and tears.
2. There is a smell that attracts insects.
If the chopped onion is left indoors for a long time, it will be easily attacked by microorganisms such as bacteria, which will lead to rot, stink and deterioration, and even attract cockroaches, mosquitoes and other hazards.