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词汇 oleic acid
释义

Definition of oleic acid in English:

oleic acid

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

    〔化〕油酸,十八烯酸

    Chemical formula: CH₃(CH₂)₇CHCH(CH₂)₇COOH

    Example sentencesExamples
    • The authors did demonstrate that oleic acid associated covalently with subunits of both the epithelial Na + channel and of the Na, K-ATPase.
    • Other injurious caustic agents such as hydrochloric acid or oleic acid were also applied to prime VILI in rodents.
    • Legumes are a good source of protein, fiber, vitamin E, niacin, and oleic acid, with mostly unsaturated fat that lowers ‘bad’ LDL-cholesterol.
    • For example, the primary fatty acid found in olive oil is the cis alkenoic acid, octadec - 9-enoic acid, commonly called oleic acid.
    • Peanut butter has plenty of unsaturated fatty acids, with oleic acid the most abundant.
    • One, DOTAP, is an amphipathic cation consisting of oleic acid chains esterified to a trimethylammonium moiety.
    • 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.
    • 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.
    • 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.
    • 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.
    • 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.
    • But, say the researchers, palmitic acid increases and oleic acid decreases plasma LDL cholesterol levels and stearic acid has a negligible effect.
    • 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.
    • 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.
    • That's because replacing polyunsaturated fatty acids with oleic acid could mean that less processing is needed to create the hardened but spreadable product.
    • 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.
    • The oily component of the droplets is preferably a triglyceride containing oleic acid and/or linoleic acid.
    • Here, the experiments with oleic acid are presented because this lipid released DNA faster and most reproducibly relative to other lipids.
    • 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.
    • It contains 70 to 85% unsaturated oleic acid and 9 to 14% unsaturated linoleic acid.

Origin

Early 19th century: oleic from Latin oleum 'oil'.

Definition of oleic acid in US English:

oleic acid

nounōˌlēik ˈasəd
Chemistry
  • An unsaturated fatty acid present in many fats and soaps.

    〔化〕油酸,十八烯酸

    Chemical formula: CH₃(CH₂)₇CHCH(CH₂)₇COOH

    Example sentencesExamples
    • 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.
    • 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.
    • 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.
    • That's because replacing polyunsaturated fatty acids with oleic acid could mean that less processing is needed to create the hardened but spreadable product.
    • 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.
    • 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.
    • Peanut butter has plenty of unsaturated fatty acids, with oleic acid the most abundant.
    • Legumes are a good source of protein, fiber, vitamin E, niacin, and oleic acid, with mostly unsaturated fat that lowers ‘bad’ LDL-cholesterol.
    • Here, the experiments with oleic acid are presented because this lipid released DNA faster and most reproducibly relative to other lipids.
    • It contains 70 to 85% unsaturated oleic acid and 9 to 14% unsaturated linoleic acid.
    • The authors did demonstrate that oleic acid associated covalently with subunits of both the epithelial Na + channel and of the Na, K-ATPase.
    • 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.
    • But, say the researchers, palmitic acid increases and oleic acid decreases plasma LDL cholesterol levels and stearic acid has a negligible effect.
    • 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.
    • 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.
    • For example, the primary fatty acid found in olive oil is the cis alkenoic acid, octadec - 9-enoic acid, commonly called oleic acid.
    • 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.
    • 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.

Origin

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

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