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Elaidic acid has 18 carbons and is a trans-9-mono-unsaturated fatty acid. It is also a trans isomer of oleic acid. C 17 H 33 CO 2 H, IUPAC organization name (E)-octadec-9-enoic acid, numerical representation 18:1 (9), n-9, molecular weight 282.46, melting point 43–45 °C. CAS Registry Number 112-79-8.
The trans isomer of oleic acid is called elaidic acid or trans-9-octadecenoic acid. These isomers have distinct physical properties and biochemical properties. Elaidic acid, the most abundant trans fatty acid in diet, appears to have an adverse effect on health. [21] A reaction that converts oleic acid to elaidic acid is called elaidinization.
The main target is a specific melting point and hardness, and this fine-tuning requires that some unsaturation (C=C bonds) remain. This partial hydrogenation turns some of the cis double bonds into trans bonds by an isomerization reaction. [17] [38] This side reaction accounts for most of the trans fatty acids consumed today, by far. [39] [40]
Elaidic acid is an unsaturated trans fatty acid, with code C18:1 trans-9. This compound has attracted attention because it is a major trans fat found in hydrogenated vegetable oils, and trans fats have been implicated in heart disease. [1] It is the trans isomer of oleic acid. The name of the elaidinization reaction comes from elaidic acid.
Another example of this is the relationship between oleic acid and elaidic acid; oleic acid, the cis isomer, has a melting point of 13.4 °C, making it a liquid at room temperature, while the trans isomer, elaidic acid, has the much higher melting point of 43 °C, due to the straighter trans isomer being able to pack more tightly, and is solid ...
Sunflower oil, high oleic: Refined: 232 °C: 450 °F [3] Sunflower oil, high oleic: Unrefined: 160 °C: 320 °F [3] Vegetable oil blend: ... Template: Smoke point of ...
Palmitoleic acid, or (9Z)-hexadec-9-enoic acid, is an omega-7 monounsaturated fatty acid (16:1n-7) with the formula CH 3 (CH 2) 5 CH=CH(CH 2) 7 COOH. It is a rare component of fats. [ 1 ] It is a common constituent of the glycerides of human adipose tissue .
The three fatty acids that bond to the glycerol will determine the complexity and type of the triglyceride. If the three fatty acids are the same, then the triglyceride will be considered a simple triglyceride. [3] However, most triglycerides contain differing fatty acids, causing them to have differing characteristics.