[botanic name] ginkgo biloba l.leaves
[appearance] brownish yellow fine powder
[specification] total flavones ≥24   total lactone ≥6%  hplc

ginkgo has been used in traditional medicine to treat circulatory disorders,improves blood circulation by dilating blood vessels and reducing the stickiness of blood platelets and promise for enhancing memory in older adults.

 

analysis items

specifications

results

test methods

 

identity

positive

conforms

tlc

appearance

brownish yellow powder

conforms

visual

odor & taste

strong and characteristic

conforms

organoleptic

ovis

2005 requirements

conforms

2005

water content

≤5.0%

conforms

2005

 

ginkgo-flavone glycosides

>24%

conforms

hplc

total terpene lactones

>6%

conforms

hplc

 

heavy metals

< 10 ppm

conforms

atomic absorption

arsenic (as)

nmt 1ppm

conforms

atomic absorption

cadmium(cd)

nmt 1ppm

conforms

atomic absorption

lead (pb)

nmt 1ppm

conforms

atomic absorption

sieve analysis

100% pass 80 mesh

complies

80 mesh screen


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