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History of fried food

Feb 14, 2020

1 basic introduction

Fried food is one of the traditional foods in China, whether it is fried twists, fried spring rolls, croquettes for New Year's Day, or fried dough sticks, cakes, and noodles for breakfast every day; French fries in children's favorite fast food , Fried bread, snacks, potato chips, fried biscuits, etc., all are fried foods. Fried foods are popular with many adults and children because they are crunchy, delicious, and fragrant. They can increase appetite, but eating fried foods regularly is bad for your health.


The Ministry of Health released the "Risk Assessment of Acrylamide in Foods" report, reminding residents to change their eating habits based on fried and high-fat foods. In the United States, California requires nine fast-food restaurants, including McDonald's and KFC, to use warning labels to indicate the acrylamide content in their fries and chips.


2 main ingredients edit

Fried food

Fried food

Acrylamide is a small molecule organic compound with a simple structure. The pure product is a transparent crystalline solid. It can dissolve with water, it can polymerize easily at the melting point, and it can also polymerize under ultraviolet light. Solid acrylamide is stable at room temperature and can react violently when hot melted or oxidized. Starch foods tend to produce acrylamide when cooked at high temperatures (> 120 ° C), and their content increases as the processing temperature increases. At the same time, relevant experiments have also found that foods with high starch content have high levels of acrylamide, while foods with high protein content have relatively low levels.


Acrylamide is a medium poison, which has a certain stimulating effect on the eyes and skin. It can be absorbed through the skin, respiratory and digestive tracts, and part of it is accumulated in the body, which mainly affects the nervous system. One-time high-dose intake will affect the function of the central nervous system, especially in the brain, which is manifested as symptoms of cerebral hemorrhage. Epidemiological observations of occupational exposure populations have shown that people who take small amounts of acrylamide for a long time will experience symptoms such as drowsiness, mood swings, memory decline, hallucinations, and tremors. Poisoning can occur or be accompanied by peripheral neuropathy (such as sweating, muscle weakness) Wait). Nerve endings have a certain incubation period, depending on the dose. It can develop within a few weeks of exposure at high doses; it can develop within a few years after prolonged exposure at low doses. Animal experiments have confirmed that high acrylamide content can cause animals to develop cancer of the reproductive system.


3 Edible HazardsEdit

One. submit questions


The Ministry of Health issued a notice recently that pointed out that starchy foods are prone to acrylamide when cooked at temperatures exceeding 120 ° C, and animal tests have shown that acrylamide is a possible carcinogen. Fried food seems to have become a street mouse, and people don't know if it is good or not. It seems that as long as it is eaten, it is not good. I want to investigate through the real harm of fried food to the human body.


two. investigation method


1. Look up books, 2. read newspapers, 3. browse the Internet 4 and ask residents about the dangers of fried food to the human body.


three. Problems and Countermeasures


1: What is fried food?


Answer: Foods with starchy foods cooked at high temperature (> 120 ℃).



2: What are fried foods?


Answer: Fried twists, fried spring rolls, fried meatballs, fried dough sticks, fried cakes, noodle nests, french fries, fried bread, as well as potato chips and fried cookies in snacks.


3: Why do people like to eat fried foods?


Answer: Because fried foods are crunchy, delicious, and fragrant, they can increase appetite, so they are loved by many adults and children.


4: What harm does fried food have on the human body?


Answer: ⑴, fried food is not easy to digest


⑵ Before the food is fried, it is often covered with a layer of flour slurry. At high temperatures, all the vitamin B1 in the flour is destroyed, so vitamin B1 deficiency can occur when eating fried foods for a long time.


⑶, repeated use of oil at high temperatures will produce a carcinogen. Many families are accustomed to storing fried food oil and using it repeatedly, which is very harmful to the body.


⑷, prone to obesity in children.


There are many bacteria in ravioli and fried food. Especially like the fried food of street vendors, 1. The dust brought by the car on the road easily enters the food, causing respiratory diseases. 2. Once it is not fried, it will cause throat or stomach problems.



four. Preliminary Conclusions


Fried foods contain very high calories and fats, and long-term intake can cause obesity or some related diseases, such as diabetes, coronary heart disease, and hyperlipidemia.


However, no matter how much acrylamide is harmful to the human body, occasionally eating fried foods will not be very harmful to the body. However, this process is just like smoking may induce lung cancer. It is a long-term accumulation process of toxicity. Long-term consumption will definitely be harmful to health Poses a huge threat. Therefore, we need to eat in moderation.


4 related issues edit

Frequently eating fried foods is easy to cause cancer. Because fried foods are subject to high temperature treatment, it is easy to produce nitrites, and fried foods are not easy to digest, are greasy, and easily cause stomach problems. Fried foods are high in calories and contain high levels of fats and oxidants. Frequent eating often leads to obesity and is a dangerous food that causes hyperlipidemia and coronary heart disease. Regardless of whether vitamins A, E and other nutrients in fats and oils are destroyed at high temperatures, the nutritional value of fats and oils is greatly reduced. In the process of frying alone, a large amount of carcinogens are produced. Studies have shown that people who eat fried foods often have a higher incidence of some cancers than people who do n’t or rarely eat fried foods.



Fried foods are not easy to digest, and children who eat more fried foods will feel stuffy and swollen on their chests, and even nausea, vomiting, or indigestion. Individual children can't eat for several consecutive meals after eating fried food.


Food is often covered with flour before it is fried


Repeated use of oil at high temperatures produces a carcinogen.


Prone to childhood obesity. According to regulations, the heat energy provided by fat in a day's diet should account for 25% to 30% of the total heat energy throughout the day. However, children who frequently eat fried foods, the daily heat energy provided by fat significantly exceeds the above indicators, so they are prone to obesity.


There are also many bacteria in fried foods, which are not clean and the quality cannot be guaranteed.


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