Why Use Formaldehyde to Keep Vegetables Fresh?

The main reason why formaldehyde has antiseptic and bactericidal properties is that the amino groups on the proteins that constitute the organism (including bacteria) can react with formaldehyde. Because the current cabbage has a lot of moisture and the temperature outside is high, it will rot in two or three days. What's more, many cabbage have to be sold to other places and need to be transported over long distances, so preservation has become a big problem, so many people spray formaldehyde. Keep it fresh.

What are the hazards of formaldehyde?

Formaldehyde is a colorless, irritating gas with a strong odor, and its aqueous solution is called formalin.

With the development of the economy and the improvement of people's living standards, decorative materials and new modular furniture have gradually become the main source of formaldehyde pollution. Studies have shown that the release period of formaldehyde contained in decoration and furniture is as long as 3-15 years.

The impact of formaldehyde on human health is mainly manifested in abnormal sense of smell, irritation, allergy, abnormal lung function, abnormal liver function and abnormal immune function. When its concentration reaches 0.06-0.07 mg per cubic meter of air, children will experience mild asthma; when it reaches 0.1 mg/cubic meter, there will be peculiar smell and discomfort; when it reaches 0.5 mg/cubic meter, it can irritate the eyes, Causes tearing; at 30 mg/m3, it causes immediate death.

Formaldehyde has a strong stimulating effect on human skin and mucous membranes, which can make proteins in cells coagulate and deform, and inhibit all cell functions. Long-term exposure to low-dose formaldehyde can cause chronic respiratory diseases, and cause nasopharyngeal cancer, colon cancer, and brain tumors; Formaldehyde It can make nuclear gene mutation, DNA single-strand cross-linking and DNA-protein cross-linking and inhibit the repair of DNA damage; the formation of methanol in the body by formaldehyde has a strong effect on the thalamus and retina. It can lead to pregnancy syndrome, cause chromosomal abnormalities in newborns, leukemia, and cause memory and intelligence decline in adolescents. Of all the contacts, children and pregnant women are particularly sensitive to formaldehyde and are more harmful.

Formaldehyde is a protoplasmic poison that destroys biological cell proteins. It can cause damage to human skin, respiratory tract and internal organs. The World Health Organization has confirmed that formaldehyde is a teratogenic and carcinogenic substance, and long-term exposure will lead to gene mutation.

Therefore, formaldehyde-preserving fruits is not advisable, and the corresponding quality inspection departments, vegetable bases, agricultural product wholesale markets and other departments should strengthen the identification and screening of formaldehyde vegetables to avoid entering the market. Shenfen Instruments Food Formaldehyde Content Detector can quickly detect the formaldehyde content in aquatic products, water-flavored foods, soy products, dried fruits, alcoholic beverages, poultry, wheat flour, sugar, yuba, vermicelli, mushrooms and other foods.

Please check food rapid test kits.

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