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Flavonoid-containing extracts of Ginkgo biloba without terpene and with a high content of flavonoid heterosides
Flavonoid-containing extracts of Ginkgo biloba without terpene and with a high content of flavonoid heterosides
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机译:银杏叶中含有类黄酮的提取物,不含萜烯,且类黄酮异黄酮含量高
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摘要
A process for preparing a flavonoid extract from the leaves of ginkgo biloba comprising multiple distractions of the leaves of the ginkgo biloba with solvents wherein at least one of the extraction stages is a deterpenation step using a solvent of the formula RC(O)OR' wherein R and R' are individually lower alkyl.
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