Extracts of ginkgo biloba and their methods of preparation

Details Extracts of ginkgo biloba and their methods of preparation Extracts of ginkgo biloba and their methods of preparation

A - Human Necessities

61

K

167/286

A61K 31/70 (2006.01)

Patent

CA 1337973

A process is provided for producing a purified extract from Ginkgo biloba leaves by solvent extraction with selected solvents. In the process, a crude or partially purified extract is subjected to solvent extraction with a solvent comprising a c6-8 aromatic hydrocarbon and a C3-6 lower alkanol. Pharmaceutical compositions comprising dimeric flavones and/or polyphenols are also described.

611813

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