[botanic name] ginkgo biloba l.leaves
[appearance] brown powder
[specification] 
total flavones 22-27%,gingko acid <5ppm, lactones(a b c) 2.8-3.4%, bilobalides 2.6-3.2%
 
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.
 
 

 

r1

r2

molecular formula

kaempferol

h

h

c15h10o6

quercetin

oh

h

c15h10o7

isorhamnetin

och3

h

c16h12o7

 

 

r1

r2

r3

molecular formula

ginkgolide a

h

h

oh

c20h24o9

ginkgolide b

oh

h

oh

c20h24o10

ginkgolide c

oh

oh

oh

c20h24o11

ginkgolide m

oh

oh

h

c20h24o10

 

 

 

r1

r2

r3

molecular formula

amentoflavone

h

h

h

c30h18o10

bilobetin

ch3

h

h

c31h20o10

isoginkgetin

ch3

h

ch3

c32h22o10

ginkgetin

ch3

ch3

h

c32h22o10

sciadopitytin

ch3

ch3

ch3

c33h24o10


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