Abstract

RESEARCH ON THE ABOVE-GROUND PARTS OF GINKGO BILOBA, A PLANT WIDESPREAD IN GEORGIA

Gelovani N.*, Ghughunishvili D., Tsikarishvili Kh., Nishnianidze M., Gvinjilia S.

Abstract

There are 4 known species from the Ginkgo family: Gingko Biloba, Ginkgo yimaensis, Ginkgo apodes, Ginkgo adiantoides. Let's study the distribution area of Ginkgo biloba in Georgia. In Georgia, Ginkgo biloba was introduced to the Black Sea coast in the 19th century. It grows especially well on the Colchis Plain, where it reaches gigantic sizes. It also grows in eastern Georgia, namely in Tbilisi (in the Botanical Garden), in the Tsavkistskali River Gorge, in the southern part of the Sololaki Range and in Kakheti. In the current study, we identified the differences between Ginkgo biloba from the Kakheti region and Ginkgo biloba from the Tbilisi area. By comparing their external and chemical characteristics, we obtained a detailed analysis on which we conducted qualitative reactions for flavonoids (quercetin). It turned out that Kakhetian Ginkgo was richer in flavonoids.

Keywords: Ginkgo biloba; phytochemical research; pharmacognostic research; natural products; complex mixtures.