[botanic name] ginkgo biloba l.leaves
[appearance] brown powder 
[specification] flavones ≥24  lactone ≥6%, gingko acid <10ppm, solubility: 20:1     
[solubility ] 1g /1000ml water ,1g/100 ml water ,5g/100ml water at 25°c
tradtional use
ginkgo seeds have been used in traditional chinese medicine for thousands of years, and cooked seeds are occasionally eaten.
pharmaceutical clinical
ginkgo has been used in traditional medicine to treat circulatory disorders and enhance memory.
the study of the well-characterized ginkgo product, found it ineffective in lowering the overall incidence of dementia and alzheimer's disease in the elderly
it also shows promise for enhancing memory in older adults.
laboratory studies have shown that ginkgo improves blood circulation by dilating blood vessels and reducing the stickiness of blood platelets.

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