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Myristic acid (IUPAC name: tetradecanoic acid) is a common saturated fatty acid with the molecular formula CH 3 (CH 2) 12 COOH. Its salts and esters are commonly referred to as myristates or tetradecanoates. The name of the acyl group derived from myristic acid is myristoyl or tetradecanoyl.
Octanoic acid CH 3 (CH 2) 6 COOH C8:0 Pelargonic acid: Nonanoic acid CH 3 (CH 2) 7 COOH C9:0 Capric acid: Decanoic acid CH 3 (CH 2) 8 COOH C10:0 Undecylic acid: Undecanoic acid CH 3 (CH 2) 9 COOH C11:0 Lauric acid: Dodecanoic acid CH 3 (CH 2) 10 COOH C12:0 Tridecylic acid: Tridecanoic acid CH 3 (CH 2) 11 COOH C13:0 Myristic acid: Tetradecanoic ...
Cervonic acid (or docosahexaenoic acid) has 22 carbons, is found in fish oil, is a 4,7,10,13,16,19-hexa unsaturated fatty acid. In the human body its generation depends on consumption of omega 3 essential fatty acids (e.g., ALA or EPA), but the conversion process is inefficient. [ 22 ]
Saturated fatty acids 16 and 18 carbons in length are the dominant types in the epidermis, [39] [40] while unsaturated fatty acids and saturated fatty acids of various other lengths are also present. [39] [40] The relative abundance of the different fatty acids in the epidermis is dependent on the body site the skin is covering. [40]
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.
In cellular metabolism, unsaturated fat molecules contain less energy (i.e., fewer calories) than an equivalent amount of saturated fat. The greater the degree of unsaturation in a fatty acid (i.e., the more double bonds in the fatty acid) the more susceptible it becomes to lipid peroxidation .
For human nutrition, an important classification of fats is based on the number and position of double bonds in the constituent fatty acids. Saturated fat has a predominance of saturated fatty acids, without any double bonds, while unsaturated fat has predominantly unsaturated acids with double bonds. (The names refer to the fact that each ...
By the late 20th century lard began to be considered less healthy than vegetable oils (such as olive and sunflower oil) because of its high content of saturated fatty acids and cholesterol. However, despite its reputation, lard has less saturated fat, more unsaturated fat and less cholesterol than an equal amount of butter by weight. [2]