Definition of oleic acid in English:

oleic acid

noun

mass nounChemistry
  • An unsaturated fatty acid present in many fats and soaps.

    • ‘They have tried hydrogenating soybean oil before converting it to diesel as well as blending the diesel fuel with oleic acid methyl ester, a smaller, more saturated molecular relative of the ester components in the diesel itself.’
    • ‘But, say the researchers, palmitic acid increases and oleic acid decreases plasma LDL cholesterol levels and stearic acid has a negligible effect.’
    • ‘The oily component of the droplets is preferably a triglyceride containing oleic acid and/or linoleic acid.’
    • ‘In the 1990s, new processing methods made vegetable oil more resistant to oxidation; and genetic engineering techniques promise to further reduce oxidation by increasing the content of oleic acid, an antioxidant.’
    • ‘Alternatives should be considered, since ß-oxidation of unsaturated fatty acids, such as oleic acid, terminates after only two cycles, leaving a 5,6 enoyl-CoA which cannot be ß-oxidized further unless the double bond is reduced.’
    • ‘One recent study suggests that oleic acid, the main monounsaturated fatty acid in olive oil, can cripple a cancer gene responsible for 25 to 30 percent of all breast cancers.’
    • ‘It contains 70 to 85% unsaturated oleic acid and 9 to 14% unsaturated linoleic acid.’
    • ‘We present evidence that it is the unique profile of the phenolic fraction, along with high intakes of squalene and the monounsaturated fatty acid, oleic acid, which confer its health-promoting properties.’
    • ‘Peanut butter has plenty of unsaturated fatty acids, with oleic acid the most abundant.’
    • ‘For example, the primary fatty acid found in olive oil is the cis alkenoic acid, octadec - 9-enoic acid, commonly called oleic acid.’
    • ‘Oil from N98-4445A contains increased levels of oleic acid - a monounsaturated fat stable enough for use in salad dressings or frying oils without treatment by the hardening process called hydrogenation.’
    • ‘Here, the experiments with oleic acid are presented because this lipid released DNA faster and most reproducibly relative to other lipids.’
    • ‘Legumes are a good source of protein, fiber, vitamin E, niacin, and oleic acid, with mostly unsaturated fat that lowers ‘bad’ LDL-cholesterol.’
    • ‘The authors did demonstrate that oleic acid associated covalently with subunits of both the epithelial Na + channel and of the Na, K-ATPase.’
    • ‘Our results show that the most efficient incorporation of added oleate into oleic acid / oleate vesicles occurs under conditions that avoid a large transient increase in the micelle/vesicle ratio.’
    • ‘Other injurious caustic agents such as hydrochloric acid or oleic acid were also applied to prime VILI in rodents.’
    • ‘One, DOTAP, is an amphipathic cation consisting of oleic acid chains esterified to a trimethylammonium moiety.’
    • ‘That's because replacing polyunsaturated fatty acids with oleic acid could mean that less processing is needed to create the hardened but spreadable product.’
    • ‘In this study we labeled oleic acid / oleate vesicles with the FRET donor-acceptor pair NBD-PE and Rh-DHPE to monitor membrane growth after the addition of oleate micelles.’
    • ‘Soap molecules oleic acid and oleyl amine also included in the mixture tagged onto the metal particles and prevented them from growing beyond about 4nm in diameter.’

Origin

Early 19th century: oleic from Latin oleum ‘oil’.

Pronunciation

oleic acid

/əʊˈliːɪk/