1.ginkgo biloba P.E. 2.GAP authentication 3.ginkgolic ... gingko, also known as the Maidenhair Tree, is a unique species of tree with no close living relatives ... properties. The ginkgolides, which are trilactonic diterpenes, include ginkgolide A, B, C. GBE is standardized to contain 24% ... flavone glycosides and 6% terpene lactones including Ginkgolide A,B,C and bilobalide. Ginkgo supplements are usually ...