... flavonoids, the main ingredients of kaempferol, quercetin, rutin, ginkgo Su, ginkgo Su, Amentotaxus pairs of flavonoids and other. Quinine ... is still acid-containing organic acids, ginkgo acid (ginkgolic acid), ginkgo phenol (bilobol) such as phenols, as well ... of bronchial smooth muscle. Have anti-aging effects, ginkgo A known anti-allergic effects.Identification 1, character identification ...