uses of fatty acids

Fatty acids with long hydrocarbon chain carboxylic acid. Usually in the form of esters of various lipid components to form free fatty acids in nature are rare, the most common fatty acids in the table below. Most fatty acids containing an even number of carbon atoms, because they are usually from 2 carbon units biosynthesis. Higher animals and plants the most abundant fatty acids containing 16 or 18 carbon atoms, such as palmitic acid (palmitic acid), oleic acid, linoleic acid and stearic acid. More than half of animal and plant lipid fatty acids as unsaturated fatty acids containing double bonds, and often more than double bonds of unsaturated fatty acids. Bacterial fatty acid double bonds, but often there is little hydroxylation, or contain branched chain, or containing cyclopropane ring structure. Some vegetable oils and waxes containing unusual fatty acids. Unsaturated fatty acids must have a double bond at C (9) and C (10) between (starting from the carboxyl carbon atoms). Fatty acid cis-double bond is almost always the geometry, which allows the hydrocarbon chain of unsaturated fatty acids, about 30 ° bend, interfere with the accumulation time they fill space efficiently, results in reduced van der Waals interactions, giving the melting point of fatty acids with its degree of unsaturation increases. Lipid mobility with the unsaturated fatty acids increase, the nature of this phenomenon on the membrane have a major impact. Saturated fatty acids are very flexible molecules, in theory, each C-C bonds around relatively freely able to rotate, and thus a wide range of some conformation. However, its fully extended conformation with the energy of the smallest, most stable; because the conformation of the methylene adjacent to steric hindrance between the minimum. And most of the substances, the melting point of saturated fatty acids with the molecular weight increases.
Animals can synthesize saturated fatty acids and linoleic acid required to contain only one type of double bonds of unsaturated fatty acids, containing two or more double bonds or more double bond fatty acids must be obtained from plants, so the latter said for the essential fatty acids, linolenic acid and linoleic acid in which the most important. Arachidonic acid from linoleic acid generation. Arachidonic acid is the precursor of most prostaglandins, prostaglandin can regulate cell function is hormone-like substances.
Fatty acids can be used for the production of styrene butadiene rubber emulsifiers and other surfactants, lubricants, gloss agents; can also be used to produce advanced soap, transparent soap, stearic acid and various surfactant intermediates.
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