Ginkgo biloba – regarded as a living fossil, it is the last surviving member of its genus. Some fossils of the tree have been dated almost 250 million years old. The tree originated from Asia and was spread almost all over the world during the middle Jurassic. The plant was cultivated in the dawn of human civilization and has been a part of our culture, in the form of different extracts and ointments used to enhance cognitive functions and as an aphrodisiac.*
The extract is derived through water-alcohol extraction of the prepared plant material and a subsequent concentration of the intermediate liquid product. The concentrated liquid extract is dried to produce the finished product. The technology employed in the production guarantees complete extraction of the active substances present in the ginkgo leaves, while guaranteeing almost no presence of the toxic ginkgolic acid.
Definition: Product from the leaves of the plant Ginkgo biloba.
Characteristics: Light brown to yellow amorphous powder with specific odour.
Testing for purity:
Sulphated ash, %, not more than: 5.0
Heavy metals, %, not more than: 0.001
Loss on drying, %, not more than: 5.0
Content of active substancies:
Ginkgo flavone glycosides, based on dry substance, %, not less than: 24.0
Content of lactones, calculated as sum bilobalides, lactones A, lactones B, lactones C, %, not less than: 6.0
Content of ginkgolic acid, ppm, not more than: 5.0
Control: The qualitative indices of the product are controlled in accordance to company documentation, where are included assay methods and their validity concerning linearity and repetition.
Storage: At a temperature of 20 – 25oC.
Shelf life: 3 (three) years from the date of production.
Application: It is used alone or in combination with other plant extracts in production of food or feed additives.