Patterns of Biflavonoid Accumulation in Ginkgo (<i>Ginkgo biloba</i> L.) Leaves from 90 Trees and Their Variation with Age, Gender, and Location.

In most of our samples, as well as in the average values, a clear trend in biflavonoid concentrations was observed: amentoflavone < bilobetin < ginkgetin < isoginkgetin < sciadopitysin, which is consistent with literature data [ 14 , 28 ].

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