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A saturated fat is a type of fat in which the fatty acid chains have all single bonds between the carbon atoms. A fat known as a glyceride is made of two kinds of smaller molecules: a short glycerol backbone and fatty acids that each contain a long linear or branched chain of carbon (C) atoms.
Common Name Systematic Name Structural Formula Lipid Numbers Propionic acid: Propanoic acid CH 3 CH 2 COOH : C3:0 Butyric acid: Butanoic acid CH 3 (CH 2) 2 COOH : C4:0 Valeric acid
Generally, the epidermal lipid matrix is composed of an equimolar mixture of ceramides (about 50% by weight), cholesterol (25%), and free fatty acids (15%). [35] Saturated fatty acids 16 and 18 carbons in length are the dominant types in the epidermis, [35] [36] while unsaturated fatty acids and saturated fatty acids of various other lengths ...
"Both saturated fatty acids and dietary cholesterol increase LDL cholesterol," he says. "A diet high in saturated fat will elevate cholesterol and lead to weight gain with associated inflammation ...
A significant proportion of the fatty acids in the body are obtained from the diet, in the form of triglycerides of either animal or plant origin. The fatty acids in the fats obtained from land animals tend to be saturated, whereas the fatty acids in the triglycerides of fish and plants are often polyunsaturated and therefore present as oils.
Synthesis of saturated fatty acids via fatty acid synthase II in E. coli. Straight-chain fatty acid synthesis occurs via the six recurring reactions shown below, until the 16-carbon palmitic acid is produced. [2] [3] The diagrams presented show how fatty acids are synthesized in microorganisms and list the enzymes found in Escherichia coli. [2]
The fatty acids in phospho- and glycolipids usually contain an even number, typically between 14 and 24, of carbon atoms, with 16- and 18-carbon being the most common. FAs may be saturated or unsaturated, with the configuration of the double bonds nearly always cis.
If the three fatty acids are the same, then the triglyceride will be considered a simple triglyceride. [3] However, most triglycerides contain differing fatty acids, causing them to have differing characteristics. Animal fat is a combination of many different triglycerides. [2] Fatty acids can be broken down into two categories, saturated and ...