How to be far away from trans-fatty acid Distinguish from the food out them

How to be far away from trans-fatty acid Distinguish from the food out them


What marked took the place of cocoa butter, a kind of cocoa butter in some chocolate prescription, it is a kind of artificial hydrogenation vegetable oil too in essence, contain the trans-fatty acid too. (Picture source: Wen Hui Daily)
Pass by the Western-style pastry room, captivating perfume will assail the nostrils. It is very difficult for people to keep out such temptation - -Let's eat a cream cake. At this moment, head of you can float one silk doubt perhaps: Will the trans-fatty acid question of the public current focus really influence our body? Captivating cream cake, can eat? After eating, will fall ill?
Know the trans-fatty acid
The perfume of the food often comes from the fat. Sometimes, a meal of people only enters the rice, steamed bun and vegetables, though the stomach feels full, can still have no sense of achievement eaten. Its reason is few fat of this meal. The fat not only can bring the sense of achievement to somebody, but also one kind in seven major kinds of nutrient that the mankind needs at the same time, belong to and grow the hot nutrient.
Fatty acid forms a kind of composition of fat, based on different its molecular structures, can be divided into multi-type. Fatty acid was connected in series by each carbon atom, carbon atom was combining the hydrogen atom again. According to the intersection of position and difference that hydrogen atom bonded to carbon atom, can divide into, obey type and against the intersection of formula and two fatty acid. Hydrogen atom lie in with to call, obey the intersection of type and fatty acid one side, hydrogen atom lie in both sides name trans-fatty acid respectively.
Vegetable oil not sucked to obey the intersection of type and high unsaturated fatty acid in the wholefood, present liquid state at room temperature, properties are unstable, it is easy to oxidize to expose to or cooking process in the air, produce harmful oxide.
Probably there are two kinds of trans-fatty acid sources:
One kind comes from natural food: For instance in fat and milk product of ruminants such as the ox, sheep,etc., the fat produced a small amount of trans-fatty acid under the function of the cud microorganism, the content probably accounts for 2%~5% of the total fat, this kind of trans-fatty acid is unharmful to health of the human body.
Another kind is produced while the oil is processed: Trans-fatty acid as the refinement of the oil takes off discreditedly and deals with the course and can produce a small amount of. The trans-fatty acid is mainly produced while the oil hydrogenates. The hydrogenation technology of the oil means that adopts the chemistry means to add hydrogen, change unsaturated fatty acid into the course of the saturated fatty acid. In the hydrogenation course of the oil, have the configuration change will take place in a small amount of fatty acid, from natural to arrange the intersection of type and structure, different to construct until against the intersection of type and structure, make it is liquid vegetable oil that turn the intersection of hydrogenation and vegetable oil of solid, semi-solid state into originally.
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