Beginning of the last century, the world Ginkgo biloba research. In 1965, Germany Weimashupei Ph.D. (Dr. Willmar Schwabe) officially listed the worlds first pharmaceutical Ginkgo biloba extract preparation TEBOONIN (generic name EGB761), for the treatment of cardiovascular and cerebrovascular diseases, and the effect is significant. Ginkgo herbal research and development as a modern one of the hot, its own characteristics that:
 ① the remains of a Jurassic plant a "living fossil", preserving the ecological characteristics of 150 million years ago, ginkgo tree vitality particularly strong, known as longevity of the tree, its related plants are extinct in the fourth glacial period, it became a Branch is a special plant.
 ② From the chemical point of view, the important active ingredient ginkgolide, has not yet been found in any other plants, More importantly, ginkgo has a unique physiological role and therapeutic value.

 Ginkgo biloba extract chemical composition
1 Quality Index
 Current international standards of Ginkgo biloba extract is a patented process by the German pharmaceutical production Schwabe EGB, quality indicators developed by the manufacturers include with more than 24% flavonoid glycosides, 6% terpene lactones Ginkgo acid 10 mg / kg. "Chinese Pharmacopoeia" 2005 edition also adopted this standard.

2 The main components
 The main ingredients are two major categories: flavonoids and terpene lactones. Ginkgo flavonoids are low molecular weight compounds, derived from its parent compound are flavonoids, glycosides and methylated to form. Ginkgo leaves contain about 38 kinds of flavonoids, including two flavonoids 6 species, flavonoid aglycones 7 species, 17 kinds of flavonoid glycosides, flavonoid glycosides mainly quercetin, kaempferol factors, isorhamnetin glucoside, and catechu prime class ......