Azadeh mahmoudi, - Department of Genetics and Breeding, Faculty of Agriculture, University of Zanjan. Zanjan, Iran.
Bahram maleki zanjani - Department of Genetics and Breeding, Faculty of Agriculture, University of Zanjan. Zanjan, Iran.
Ali ammarellou - Research Institute of Modern Biological Techniques, University of Zanjan, Zanjan, Iran.

Ginkgo biloba is one of the valuable and important medicinal plants in many countries. Ginkgo can reproduce itself at the age of ۳۰, and live up to ۲۵۰۰ year. The height of Ginkgo is up to ۳۵ meters and the diameter is up to ۷ meters, its leaves are fan-shaped. The phytochemical compounds in ginkgo extract can be documented to the three main categories: Flavone glycoside, Terpene lacton and Acids. In addition; other compounds are found in ginkgo biloba extract, which alone or in combination can help to control and treat many diseases, including alzheimer's, weight gain, high blood pressure and cardiovascular disease, diabetes, learning and concentration disorders, impotence, aging and some hearing problems. Based on knowledge, ginkgo extract is a powerful antioxidant that can remove free radicals and also stop their production process. Ginkgo extract is purified and prescribed in some countries, such as Germany. In this article, we have tried to introduce ginkgo botany, its effective compounds, and the mechanism of these compounds against diseases.

Ginkgo, medicinal plants, Secondary metabolites.