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The content of flavonoids in Gingko biloba extract (GBE) could be increased by antisolvent recrystallization (ASR) using ethanol as solvent and hexane as antisolvent. By means of the single‐factor method, the effect of main factors on the content of flavonoids in purified GBE was investigated. Under optimal conditions, the content of flavonoids and ginkgo terpene lactones in purified GBE could be...
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