Trans fatty acid is a variant unsaturated fatty acid. Trans fatty acids are simply unsaturated fatty acids that are harmful to human health. Although they are not a good thing, they still exist in the environment and soil.
Many people think directly of margarine, margarine, vegetable cream and so on when they mention trans fatty acids. Such unhealthy things will be invented and still used all the time. Isn’t this harmful to people?
In fact, trans fatty acids are not artificially made by human beings. It is a natural substance. As long as it is contained in ruminant body fat and dairy products, it is because the enzyme of microorganism in rumen can promote the biological hydrogenation to form trans fatty acid. After that, these trans fatty acids will enter the animal body and milk, but the content ratio is higher Margarine and other artificially hydrogenated products are much less. The content of trans fatty acids in the oil repeatedly used for frying food will also increase significantly.
Oil is composed of fatty acids. Unsaturated fatty acids are beneficial to human body, but artificial hydrogenated vegetable oil, repeated frying and excessive long-term high temperature are easy to cause a large amount of trans fatty acids. Data show that it is harmful to human body: obesity, cardiovascular disease, growth and development of teenagers.
Margarine is still used in cake shops. One reason is that the national standard does not prohibit the use of margarine (there is a value here, which can not be exceeded). The other is from margarine and margarine. It has good taste and good shape. Third, because margarine is cheap. Generally, the price of natural butter is several times that of margarine. If margarine is eliminated, the price of bread and pastry will become much more expensive.