According to the related papers, seafood mushrooms bring their own endogenous formaldehyde, which means that seafood mushrooms will produce themselves even if formaldehyde is not added. The longer fresh mushrooms are stored, the more formaldehyde slowly accumulates and the greater the concentration, so the longer fresh mushrooms are stored, the less edible they are. Of course, you don't have to worry. If it is a fresh mushroom just bought, as long as it is properly cleaned, it is no problem to eat it at this time.
In normal life, the price of doll dishes is generally high, but doll dishes are not easy to preserve and deteriorate. Therefore, some unscrupulous merchants will spray formaldehyde to achieve the purpose of preservation. Baby dishes are different from seafood mushrooms. Doll food itself does not carry any formaldehyde, but some unscrupulous merchants will spray it, so don't worry too much about buying doll food.
Brief introduction of formaldehyde
Formaldehyde is an organic compound with the chemical formula of CH2O, which is the simplest aldehyde compound. It is a colorless gas at room temperature and has a pungent smell. Formaldehyde is widely used in many industries and daily life. Formaldehyde has many uses. In industry, it is used as preservative, disinfectant and bactericide, and used to make furniture, building materials, clothes, plastics, cosmetics and detergents. Formaldehyde is often used as an important reagent in chemistry laboratory.
However, long-term exposure to high concentrations of formaldehyde may have a negative impact on human health. The content of formaldehyde in food is also concerned, and formaldehyde may be produced in some food processing processes, such as food cooking, smoking and storage. In order to protect public health, regulatory agencies in various countries strictly control the use and restrictions of formaldehyde, and formulate corresponding safety standards and regulations.