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词汇 lactone
释义

Definition of lactone in English:

lactone

noun ˈlaktəʊnˈlaktōn
Chemistry
  • An organic compound containing an ester group —OCO— as part of a ring.

    〔化〕内酯

    Example sentencesExamples
    • Standardized ginkgo formulas contain 24% flavonoids, and the substance, along with the other main component of ginkgo, terpene lactones, seems to keep red blood cells and platelets from forming clots.
    • The effects of kava-kava come from the synergistic mechanism of its root's active ingredients, resinous compounds called kava lactones.
    • Kava lactones are similar in chemical structure to a compound known as myristicin - found in nutmeg.
    • Macrodiols with different thermal characteristics were prepared using ring-opening polymerization of cyclic diesters or lactones with a low molecular weight diol as an initiator.
    • The polar head is a macrocyclic lactone ring containing nine amino acid residues, three of which have positive charges, whereas one has negative charge.

Definition of lactone in US English:

lactone

nounˈlaktōn
Chemistry
  • An organic compound containing an ester group —OCO— as part of a ring.

    〔化〕内酯

    Example sentencesExamples
    • The effects of kava-kava come from the synergistic mechanism of its root's active ingredients, resinous compounds called kava lactones.
    • Standardized ginkgo formulas contain 24% flavonoids, and the substance, along with the other main component of ginkgo, terpene lactones, seems to keep red blood cells and platelets from forming clots.
    • Macrodiols with different thermal characteristics were prepared using ring-opening polymerization of cyclic diesters or lactones with a low molecular weight diol as an initiator.
    • Kava lactones are similar in chemical structure to a compound known as myristicin - found in nutmeg.
    • The polar head is a macrocyclic lactone ring containing nine amino acid residues, three of which have positive charges, whereas one has negative charge.
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