Linolelaidic acid is an

omega-6 Omega-6 fatty acids (also referred to as ω-6 fatty acids or ''n''-6 fatty acids) are a family of polyunsaturated fatty acids that have in common a final carbon-carbon double bond in the ''n''-6 position, that is, the sixth bond, counting from ...

trans fatty acid In nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such compounds, most commonly those that occur in living beings or in food. The term often refers specifically to triglycerides (triple e ...

(TFA) and is a geometric

isomer In chemistry, isomers are molecules or polyatomic ions with identical molecular formulae – that is, same number of atoms of each element – but distinct arrangements of atoms in space. Isomerism is existence or possibility of isomers. Iso ...

linoleic acid Linoleic acid (LA) is an organic compound with the formula COOH(CH2)7CH=CHCH2CH=CH(CH2)4CH3. Both alkene groups are cis-trans isomerism, ''cis''. It is a fatty acid sometimes denoted 18:2 (n-6) or 18:2 ''cis''-9,12. A linoleate is a salt (chem ...

. It is found in partially

hydrogenated Hydrogenation is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic co ...

vegetable oils. It is a white (or colourless) viscous liquid. TFAs are classified as conjugated and nonconjugated, corresponding usually to the structural elements -CH=CH-CH=CH- and -CH=CH-CH₂-CH=CH-, respectively. Nonconjugated TFAs are represented by

elaidic acid Elaidic acid is a chemical compound with the formula , specifically the fatty acid with structural formula HO(O=)C–(CH2–)7CH=CH–(CH2–)8H, with the double bond (between carbon atoms 9 and 10) in ''trans'' configuration. It is a colorless ...

and linolelaidic acid. Their presence is linked heart diseases. The TFA

vaccenic acid Vaccenic acid is a naturally occurring trans fatty acid. It is the predominant kind of trans-fatty acid found in human milk, in the fat of ruminants, and in dairy products such as milk, butter, and yogurt. Trans fat in human milk may depend on tr ...

, which is of animal origin, poses less of a health risk.Park, Yeonhwa "Conjugated linoleic acid (CLA): Good or bad trans fat?" Journal of Food Composition and Analysis 2009, vol. 22, S4-S12.

References

Fatty acids Alkenoic acids {{Organic-chem-stub