Application of Evaporative Light-Scattering Detector Analysis of Terpenoids in Ginkgo Bilobam

Ginkgo biloba extract contains flavonoids and terpenoids that have been reported to be effective for improving poor blood circulation in the brain as well as poor peripheral blood vessel circulation. This ginkgo biloba extract is used as a health dietary supplement in Japan and the United States.
Terpenoids that are known to be present in large quantities in ginkgo biloba include bilobalide, ginkgolide A, ginkgolide B and ginkgolide C (Fig. 1).