Can't eat frozen buns? If it is stored for more than 3 days, it will breed aflatoxin, is it really true?
With the development of science and technology, the level of all aspects has been greatly improved, and people's lives are getting better and better. All kinds of home appliances began to enter thousands of households, especially the popularization of refrigerators, which brought great convenience to people's lives.
We all know that food has a shelf life, especially in summer. The weather is very hot, which can speed up the spoilage of food. However, the advent of refrigerators has provided a safe place for food that has a relatively short shelf life and avoids food waste.
However, a refrigerator is not a safe. It only prolongs the shelf life of food, but it doesn't mean the food won't rot or go bad. No matter what kind of food is stored in the refrigerator for a long time, it grows bacteria and contaminates other foods in the refrigerator.
Take steamed buns as an example. Recently, there has been a saying on the Internet that steamed buns cannot be stored in the refrigerator for a long time. If more than three days, aflatoxin may breed. After eating, it can endanger health. Is this correct? Next, let's take a look.
Let’s first understand what aflatoxins are.
As early as 1933, aflatoxin was discovered and classified as a first-class carcinogen by the World Health Organization's Cancer Research Agency. Aflatoxin is a type of Aspergillus flavus.
It is said that the toxicity is more than 60 times higher than that of arsenic, and it is the most toxic type of many molds and is the most harmful to human health.
Aflatoxin (AFB1) is the carcinogen of liver cancer found so far, and aflatoxin is divided into B1.B2.G1.G2.M1.M2 and so on.
Once aflatoxin enters the human body, the toxin content in the liver is higher than in other tissues and organs, indicating that the liver is more affected by aflatoxin, and the spleen and adrenal gland can also be detected in the kidney, but generally not in the muscle. Since aflatoxin is mainly metabolized in the liver, its harm mainly lies in the damage to the liver tissue.
Can't eat frozen buns? Aflatoxin is stored for more than 3 days, is this really true?
As a representative of the northern staple food, steamed bread is almost inseparable from every meal. They also have their own steamed buns at home. They can be eaten for many days in one cauldron and can solve eating problems for a few days.
It is also available in supermarkets now. For convenience, we also go to the supermarket to buy steamed buns. Sometimes we buy a lot of steamed buns. If we can't eat it as a meal, we often continue to eat it.
Yet many people fidget when they see claims that steamed buns stored for three days in the refrigerator can harbor aflatoxins. is this real?
To this end, relevant experts conducted an experiment, dividing 100 steamed buns into 10 groups, one group of 10 steamed buns, the first group was placed in the refrigerator for one day, and the second group was placed in the refrigerator for two days. Three, four, five days, and so on, after comparing the 10 groups of steamed breads for freezing days, it was found that steamed breads kept in the refrigerator for more than three days would not produce aflatoxin.
However, after being heated at high temperature, the steamed buns also lost their original soft taste, because the steamed buns were stored in the refrigerator for a long time, resulting in a lot of water loss.
It can be seen that because the cold air in the refrigerator is not suitable for the growth of mold, the suitable temperature of aflatoxin is about 25~40℃, and the temperature of the freezer of the refrigerator is below 0℃, so the steamed bread is stored in the refrigerator for a long time. Aflatoxin is not produced, so this is not a cause for concern.
Which foods are easily contaminated with aflatoxins?
soaked fungi
Edible fungi are usually non-toxic, such as fungi, white fungus, shiitake mushrooms, etc., but if the fungi are soaked in water for too long, they will cause pollution, produce a large amount of aflatoxin, damage the liver, and induce liver disease.
Grain and oil products
Peanut oil. Corn oil. If the production enterprise does not strictly select the raw materials, the production of edible oils such as moldy peanuts, rapeseeds, and corn, or the lack of technology or insufficiently controlled technology, will lead to excessive aflatoxins.
dairy products
Moldy yogurt, acne and other dairy products can be infected with aflatoxins, which can induce liver cancer. While yogurt is good, once it's past its expiration date, it's best to throw it away, not force it.
moldy peanuts
Moldy foods, especially starch-rich foods, which are starch-rich foods like peanuts, are prone to mold, which breeds this cancer-causing mold.
If one peanut is moldy, it is recommended not to ask for a whole bag of peanuts. Don't think it's a waste. You should know that this mold usually spreads in the form of spores, which can easily affect the mildew of food.
What should I do if I accidentally eat food contaminated with aflatoxin?
Drink milk, milk can protect the gastric mucosa and reduce the harm of food moldy to the stomach.
Drink more water. Drinking more water helps to promote human metabolism, helps food digestion, and promotes food to be excreted as soon as possible.
If you have food poisoning symptoms such as diarrhea and vomiting, you should pay attention to a light diet. If you have gastrointestinal discomfort after eating moldy food, you should keep a light diet.
If you have severe vomiting, abdominal pain, diarrhea and other symptoms after eating moldy food, you must check it immediately to prevent serious negative effects.