Elaidic acid is an organic compound having CH3(CH2)7CHCH(CH2)7CO2H formula. It is being categorized as an unsaturated trans fatty acid. This acid is a colorless oily solid. This compound has attracted attention as it is a major trans-fat found in hydrogenated vegetable oils and trans fats which are implicated in heart ailments. It is a trans isomer of oleic acid. In 1819, Elaidic acid was first discovered by Poutet J.J.E. In 1832, Boudet F. studied Poutet’s work accurately and isolated fatty acid which was named as acide elaidique derived from Greek word elais referring olive. Till 1952, elaidic acid was known as laboratory product and Swern D. et al. demonstrated its presence in beef fat. Later it was shown that it is an outcome of hydrogenation of unsaturated fatty acids in first stomach of animals.
Food Sources
| Food name | Weight (g) | Elaidic acid (g) |
| Almonds | 138 | 45.192 |
| Kielbasa | 370 | 38.746 |
| Peanuts | 146 | 37.115 |
| Margarine | 232 | 25.330 |
| Egg | 67 | 14.481 |
| Chicken | 85 | 13.140 |
| Bacon | 85 | 12.101 |
| Cheddar cheese | 132 | 8.695 |
| Canola oil | 14 | 8.640 |
| Cream | 120 | 8.494 |
| Swiss cheese | 132 | 8.407 |
| Peanut butter | 32 | 7.926 |
| Queso blanco | 118 | 6.017 |
| French fries | 184 | 5.919 |
| Parmesan cheese | 100 | 5.815 |
| Queso fresco cheese | 122 | 5.730 |
| Turkey | 863 | 4.850 |
| Green plantains | 118 | 4.679 |
| Coleslaw | 191 | 4.254 |
| Dark chocolate | 28.35 | 3.580 |
References:
https://en.wikipedia.org/wiki/Elaidic_acid
https://pubchem.ncbi.nlm.nih.gov/compound/Elaidic_acid#section=Top
http://www.tuscany-diet.net/lipids/list-of-fatty-acids/elaidic/