Earth-pressed peanut oil may contain a lot of aflatoxin. Why?

Mention the crown? Earth? Many people can associate various products with nature, green, health and safety. In many cities in Guangdong, residents have been using peanut oil as seasoning for food such as vermicelli, and all of them come from small workshops. Squeeze the soil? Peanut oil has become the best choice for local residents because of its mellow flavor. So can peanut oil squeezed from the soil be eaten? Can't! Can't! Can't! Say the important things three times! ! ! In recent years, aflatoxin, a strong carcinogen, has repeatedly exceeded the standard in sampling of peanut oil squeezed from bulk soil.

What is aflatoxin? Aflatoxin is a very toxic mycotoxin, and its toxicity is 68 times that of arsenic. It mainly pollutes cereals, oils, animal and plant foods, specifically peanuts, corn, rice, wheat, beans, cereals, oils, meat, milk, dairy products and aquatic products. Among them, peanuts and corn are the most polluted. There will be these dangers

The harmfulness of aflatoxin is that it can cause acute or chronic damage to liver tissue after ingestion by human body;

1 acute poisoning: when the intake is large, acute poisoning can occur, with jaundice as the main clinical manifestation, vomiting, anorexia and fever. In severe cases, ascites, edema of lower limbs and even death occurred 2-3 weeks later, and gastrointestinal bleeding occurred before death.

Chronic poisoning: continuous intake can cause chronic poisoning and growth disorder, and can also induce liver cancer, bone cancer, kidney cancer, rectal cancer, breast cancer and ovarian cancer. Aflatoxin is one of the strongest carcinogens known at present.

How to prevent it: 1. The best and most realistic way to prevent aflatoxin is to try not to store too many dried fruits and grains at home. 2. If you really need to store dried fruits, grains and other foods, you must pay attention to ventilation and dryness to prevent mildew. 3. Washing rice by hand for three or four times is helpful to remove most aflatoxins. 4. Buy nuts, peanuts, etc. Try to choose a small package, open it and smell it, and throw away the whole package as soon as it smells bad. 5. Aflatoxin is very heat-resistant and can only be decomposed at 280 ~ 300℃. General cooking and even frying are difficult to completely destroy, so it is recommended to resolutely discard moldy food. If you accidentally eat moldy food, spit it all out and rinse your mouth. 6. Eating more fruits and vegetables can effectively reduce the toxicity of aflatoxin to human body. In addition to these preventive methods, peanut oil mentioned above contains aflatoxin and cannot be purchased. However, in daily life, cooking oil is essential, so how to buy cooking oil safely? Bian Xiao specially consulted experts from our CDC, so let's all have a look.

How to choose safe edible oil? 1. Buy edible oil from a merchant with complete licenses and keep relevant bills.

2. Buy edible oil produced by regular manufacturers, and see if the labels and labels on the package are complete. According to the national standards, the outer packaging must be marked with the name of the factory, site, production date, shelf life, implementation standard, trademark, net content, ingredient list, nutrient composition list, etc. If any of the above items are missing, try not to buy them.

3. Buy edible oil with tightly sealed packaging bottles and clear oil products without impurities and layers.

Consumers want to buy branded products. Consumers generally have one kind? Earth is good? As long as people who have some knowledge of food science know, this view of consumption is very wrong. ? Wang Yong said that edible oil processing is a highly intensive processing process. At present, the technology, process and equipment for reducing aflatoxin are very mature, which can basically be applied to the production practice of large edible oil enterprises. Many small workshops are not unwilling to upgrade the production line, but because the cost of purchasing and installing equipment remains high.

The relevant person in charge of the US Food and Drug Administration also said that in order to reduce the safety risks caused by aflatoxin exceeding the standard, food producers and operators should engage in production and business activities in accordance with the Food Safety Law and other laws and regulations and food safety standards, such as purchasing raw materials from sanitary and reliable suppliers with good reputation; Strengthen the sanitary management of technological process; Check whether raw materials and finished products meet the requirements of food safety standards; Store food properly and keep the environment dry and cool; The principle of first-in first-out should be adopted when storing food; Improve relevant records according to regulations to ensure food safety traceability.

For consumers, the regulatory authorities suggest that when buying edible oil, it is best to buy brand peanut oil in large and medium-sized formal shopping malls, and pay attention to check whether there is a label on it? QS？ Sign, try not to buy bulk peanut oil, peanut oil squeezed from soil. At the same time, consumers should pay attention to whether the peanut oil in the store is stored in a cool environment. If the package is found to be unclean, unsealed or damaged, don't buy it.

The survey found that in recent years, some merchants in the market promoted some small household oil presses to consumers to facilitate consumers to extract oil from oil (such as peanuts) themselves. According to Wang Yong's research, this small household oil press is actually unscientific and unsafe. Because the technical content of these small household oil presses is not high, they simply reduce some backward equipment.

Oil products are different from soybean milk and juice products. The latter two products belong to fast-moving consumer goods and must be eaten on the same day for safety reasons. ? Wang Yong pointed out that the daily consumption of oil products is generally limited, and the oil products obtained by household oil presses may have exceeded the standard during storage, which may have potential safety hazards. ? The peanut oil thus obtained has a lot of gum, which is actually not suitable for direct cooking. ?

In addition, compared with industrial oil presses, domestic oil presses have low pressure and low oil yield, and about half of the oil cannot be squeezed out, resulting in great waste of raw materials. If we can't make good use of peanut meal obtained by oil pressing, it will be a waste of raw materials. More importantly, if raw peanuts are moldy, there is a risk that the extracted oil will exceed the standard of aflatoxin.