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The polar head is a macrocyclic lactone ring containing nine amino acid residues, three of which have positive charges, whereas one has negative charge.
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.
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.
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