Elaidic acid

 ( Fatty Acids ) 

Elaidic acid is a chemical compound with the formula , specifically the fatty acid with structural formula , with the double bond (between carbon atoms 9 and 10) in trans configuration. It is a colorless solid. Its salts and esters are called elaidates.

Elaidic acid is an unsaturated fat trans fat, with code C18:1 trans-9. This compound has attracted attention because it is a major trans fat found in Hydrogenation vegetable oils, and trans fats have been implicated in heart disease.

It is the trans isomer of oleic acid. The name of the elaidinization reaction comes from elaidic acid.

Its name comes from the Ancient Greek word ( elaion), meaning oil.

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Occurrence and bioactivity Elaidic acid occurs mostly in industrial hydrogenation of polyunsaturated fatty acids. It's also present in small amounts in goat and Milk (very roughly 0.1% of the fatty acids) and in some meats.

Elaidic acid increases plasma cholesterylester transfer protein (CETP) activity which lowers HDL cholesterol.

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See also

• Oleic acid

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