EXTRACTION METHOD, PHARMACEUTICAL COMPOSITION AND A COSMETIC COMPOSITION

摘要

The invention relates to a method of extracting a compound from vegetable material, wherein the vegetable material is reduced and treated with a solvent. According to the invention, the vegetable material is frozen using a liquid nitrogen and in frozen condition reduced in size. According to two important embodiments, the vegetable material comes from the ginkgo tree, in particular fresh leaves, and water is used as the solvent. The invention also relates to a pharmaceutical preparation and a cosmetic preparation comprising as active component a compound obtained by the method according to the invention.