Linoleic Acid

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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 ?
Ochoa JJ, Farquharson AJ, Grant I, Moffat LE, Heys SD, Wahle KW (2004) Conjugated linoleic acids (CLAs) decrease prostate cancer cell proliferation: different molecular mechanisms for cis-9, trans-11 and trans-10, cis-12 isomers.
The oils rich in linoleic acid (SO, 535 g/kg of FA), oleic acid (RO, 539 g/kg of FA) and a-linolenic acid (LO, 538 g/kg of FA) were examined.
These results indicate that oil content and percentage of fatty acids, especially oleic and linoleic acids are largely affected by climatic changes depending on years.
Elysian, MN, USA) was the source of conjugated linoleic acid (CLA) with the reported isomer content as follows: 39.
Consume plenty of fruits and vegetables, whole grains, legumes, seeds, nuts, fish, lean meat, low-fat dairy products, and healthy fats such as canola and olive oils (avoid saturated fats and trans fats, if possible, and replace them with linoleic acid and omega-3 fatty acids).
The results are consistent with the findings of Ahmed and Young {5} who found that oleic and linoleic acids constituted approximately 80% of the total fatty acid composition of groundnut.
Partial inhibition of biohydrogenation of linoleic acid can increase the conjugated linoleic acid production of Butyrivibrio fibrisolvens A38.
Incorporation of dietary linoleic and conjugated linoleic acids and related effects on eggs of laying hens.
Among PUFAs, linoleic acid (C18: 2o6) had the highest percentage in the all carcass parts.
1] were used for the identification and quantitative analysis of the of trans and conjugated linoleic acids in the heated samples.
Conjugated linoleic acids (CLAs) decrease prostate cancer cell proliferation:different molecular mechanisms for cis-9, trans-11 and trans- 10, cis-12 isomers.
Most vegetable oils are very good sources of linoleic acid but only very few oils contribute significant amount of linolenic acid in the diet (Longvah et al.