Ginkgo leaf has flavonol glycosides, terpene trilactones, (principally the diterpene ginkgolides A, B, C and J, and the sesquiterpene bilobalide), along with smaller amounts of biflavones, proanthocyanidins and unwantd (by me) alkylphenols, ginkgolic acids , and ginkgotoxin (4 ́-0-methylpyridoxine) .


I am looking for an efficient separation of these classes of compounds. At least to separate out the ginkgolic acid and perhaps the ginkgotoxin from the rest.

Anyone have suggestions?