Clemens Erdelmeier,Hermann Hauer,Egon Koch,Friedrich Lang
申请号：
US12217803
公开号：
US08642099B2
申请日:
2008.07.09
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The present invention relates to an improved multi-step method for preparing an extract from ginkgo biloba having a reduced content of 4′-O-methyl pyridoxine and/or biflavones, wherein the depletion is carried out by filtration over an adsorber resin and/or an ion exchanger and the substances to be removed are retained on the resin. The invention further relates to an extract from ginkgo biloba having a reduced content of 4′-O-methyl pyridoxine and/or biflavones, which is obtainable by the method according to the present invention, as well as to its use.
