Experts detailed several commonly used cooking oil in particular need to be vigilant and pay attention to the place: a defense Cooking oil in the high erucic acid Northwest, Central China residents generally love to eat rapeseed oil. Vegetable oil is beneficial to the gallbladder function, the human body on the vegetable oil digestion and absorption rate is high. However, many cardiovascular experts at home and abroad on the investigation of heart disease patients, heart disease patients in the blood daily to accept a small amount of enzyme digested erucic acid, the original abnormal cardiovascular function will be overloaded, more likely to induce "thickening of the blood vessel wall" and "myocardial fat deposits It is easier to induce "thickening of blood vessel wall" and "fatty deposition in myocardium". At present, there are low erucic acid rapeseed oil brands in the domestic market, and the erucic acid content of existing low erucic acid rapeseed oil products is ≤5%, which is still higher than the erucic acid content of rapeseed oil in foreign countries, which is ≤0.1% of the level. Experts suggest that patients with various types of heart disease, especially coronary heart disease patients, hypertensive heart disease patients should try not to eat high erucic acid rapeseed oil. Two prevent the nutrients in the oil is refined off the nutrients in the oil in a single soybean salad oil. Salad oil is also commonly used cooking oil, Li Zhiwei experts, salad oil, also known as the "first class oil" (the new national standard), manufacturers in order to remove the special soybean oil soybean smell, through eight procedures to refine soybean oil, so that it becomes colorless and tasteless oil. Therefore, many of the nutrients in the soybean oil itself is inevitably "refined away", and the northeast people love the "soybean" flavor is gone. From the nutritional value, the fatty acid composition of soybean oil is better, it is rich in polyunsaturated fatty acids, have the effect of preventing cardiovascular disease, but also contains a large amount of vitamin E, vitamin D, and rich in lecithin, are beneficial to human health. At the same time, experts also emphasized that soybean salad oil is not flavor oil, edible quality is not as good as sesame oil, sunflower oil, peanut oil, and because of the high saturated fatty acids of soybean salad oil, but also need to be consumed with other oils. Three prevention Peanut oil aflatoxins due to peanut oil fried dishes are very strong flavor, love the strong taste of the north of the peanut oil flavor is particularly fond of. However, experts point out that peanut oil has its own unique problems and drawbacks. One of the most serious problems is that peanuts are susceptible to mold infection and secretion of aflatoxin b1, a toxin that is one of the most potent natural carcinogens in nature and can cause liver cancer. Some unscrupulous businessmen for profiteering using poor quality peanuts or expired moldy peanuts pressed production of peanut oil, and consumers can not be tasted to understand the peanut oil with or without mold, once consumed these poor-quality and harmful peanut oil, the body is very harmful. In the production process of peanut oil, is it possible to remove the toxicity of aflatoxin? Li Zhiwei expert clearly pointed out that the peanut infected with mold, in the pressing of peanut oil, although by a variety of methods to remove this toxin, but there may still be a very small amount of aflatoxin residue exists. In the process, aflatoxin will not be removed in the pure pressing process. At present, some manufacturers in the market are emphasizing the "miracle" of the pressing process, but avoiding to talk about aflatoxin in peanut oil. In fact, Europe and the United States on the peanut oil requirements are extremely stringent, the peanut oil aflatoxin content of 2ppb or less for qualified, while China's peanut oil aflatoxin b1 content of 20ppb or less for qualified. Although the peanut oil standard contains only a very small amount of toxins, but if the human body a large number of intake of aflatoxin, it is easy to form an acute poisoning caused by the destruction of liver function, hepatic coma and cause death.