Fat has a complex structure. It is composed of glycerol and fatacids nye, the most common of which palmitic, oleic and stearic. From their combination in compound with glycerin and depends on the education of that particular fat.
A compound of oleic acid with glycerin forms a liquid fat (vegetable oil). Palmitic acid gives a more solid fat and part butter. Stearic acid is part of the solid fats, for example, fat. Synthesizing the human body specific fatas possible when you receive all three of these fatacids tion.
In the process of vital activity of the organism and, in particular, during digestion the fat is split into its constituent parts – fatnye acids and glycerol. Happens the neutralization of the fattion of acids by alkalis, with the formation of their salts (Soaps) soluble in water and is easily absorbed.
Specifically, the breakdown of fats originates in the stomach. Gastric juice is composed of such a substance as lipase. It splits the fat into glycerin and acid. Dissolution and subsequent absorption of acids is only due to the bile. Bile increases the action of lipase up to 20 times. While glycerine is soluble in water and is well absorbed. It should be borne in mind that the stomach is split only the fat, which is fragmented into small particles (fat of milk, for example). The disintegration of the fatand small particles also contributes to the bile.
Further breakdown fats under the influence of intestinal juice glands occurs in the duodenum. Here they are brought to such state that are absorbed into the blood and lymph. In the small intestine it juice finally breaks down fat into its component products.
Of course, in the organism there are some reserves of fat,and having energy value. On average, a person in the body fat is 10-20% of the weight. In some diseases that violates the metabolism, the content of fatand can reach up to 50% of body weight. The amount deposited and not split fatbut depends on sex, age, occupation, General health. Burning fatand promotes a mobile, active lifestyle.