Linoleic Acid

(redirected from Alpha-linoleic acid)
Also found in: Dictionary, Thesaurus, Medical.
Related to Alpha-linoleic acid: eicosapentaenoic acid, Alpha lipoic acid

linoleic acid

[¦lin·e¦lē·ik ′as·əd]
C17H31COOH A yellow unsaturated fatty acid, boiling at 229°C (14 mmHg), occurring as a glyceride in drying oils; obtained from linseed, safflower, and tall oils; a principal fatty acid in plants, and considered essential in animal nutrition; used in medicine, feeds, paints, and margarine. Also known as linolic acid; 9,12-octadecadienoic acid.

Linoleic Acid


a monobasic carboxylic acid with two isolated double bonds, CH3(CH2)3 (CH2CH=CH)2(CH2)7COOH; a colorless oily liquid. Melting point, — 11°C; boiling point, 182°C (at 532 newtons per sq m, or 4 mm of mercury); density, 0.903 g/cm3 at 20°C.

Together with arachidonic acid and linolenic acid, linoleic acid is an irreplaceable fatty acid, necessary for normal vital activity. These acids are ingested by humans and animals with food, mainly in the form of complex lipids (triglycerides and phosphatides). A substantial quantity of linoleic acid in triglyceride form (up to 40–60 percent) is known to occur in many vegetable oils and animal fats, such as soy, cottonseed, sunflower, linseed, and hemp oils and whale blubber.

References in periodicals archive ?
Despite being provided with linoleic and alpha-linoleic acid in intravenous soybean oil, preterm neonates develop ARA and DHA deficiencies.
Molecular and chemical work shows that the jasmonates are lipid-derived molecules, which are synthesized from alpha-linoleic acid by a lipoxygenase-mediated oxygenation (Staswick 1992).
And, for the All-Natural Eggs with 160mg ALA Omega-3 per egg, the whole grain feed consumed by our hens is enriched with omega-3 fatty acids from flaxseed, making each egg a good source of alpha-linoleic acid (ALA) omega-3 fatty acids (providing 160 mg, or 10 percent of the daily recommended intake for this nutrient).
The study also supported causal relationships between vitamin E and ascorbic acid supplements, saturated and polyunsaturated fatty acids and total fats, alpha-linoleic acid, meat, eggs and milk.
It also contains 200 mg alpha-linoleic acid (ALA) omega-3 per serving.

Full browser ?