... ,Ginkgolic Acid<5ppm(Enterprise standard)4) Total Flavone Glycosides 24%and Total Lactones 6% and Quercetin Glycoside/ Kaempferol Glycoside ... Acid<5ppm14) Pure ginkgo biloba extract:Total Flavone Glycosides 24%,Total Lactones6%, Quercetin Glycoside/ Kaempferol Glycoside=0.8- ... Acid<1ppm15) Pure ginkgo biloba extract:Total Flavone Glycosides 24%,Total Lactones6%, Bilobalides min2.6%, Ginkgolic Acid<1ppm( ...