Elaidic acid

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Elaidic acid
CAS number 112-79-8 YesY
PubChem 637517
ChemSpider 553123 YesY
DrugBank DB04224
KEGG C01712 YesY
ChEBI CHEBI:27997 YesY
Jmol-3D images Image 1
Molecular formula C18H34O2
Molar mass 282.46 g/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Elaidic acid is the major trans fat found in hydrogenated vegetable oils and occurs in small amounts in caprine and bovine milk (very roughly 0.1% of the fatty acids) [1] and some meats. It is the trans isomer of oleic acid. The name of the elaidinization reaction comes from elaidic acid.

Elaidic acid increases plasma CETP activity which lowers HDL cholesterol.[2]


  1. ^ Alonso L, Fontecha J, Lozada L, Fraga MJ, Juárez M (1999). "Fatty acid composition of caprine milk: major, branched-chain, and trans fatty acids". J. Dairy Sci. 82 (5): 878–84. doi:10.3168/jds.S0022-0302(99)75306-3. PMID 10342226. 
  2. ^ Abbey M, Nestel PJ (1994). "Plasma cholesteryl ester transfer protein activity is increased when trans-elaidic acid is substituted for cis-oleic acid in the diet". Atherosclerosis 106 (1): 99–107. doi:10.1016/0021-9150(94)90086-8. PMID 8018112.