Abstract:
CAS No.: 90045-36-6
Botanical Source: Ginkgo Biloba L.
Plant Part Used: Dried Leaf
Appearance: Fine light yellowish brown powder
Specifications: Ginkgo flavone glycosides 24% by HPLC
Terpene lactones 6% by HPLC
Ginkgolic acid 5% by HPLC
Ginkgo leaf extract comes from the leaves of the Ginkgo biloba, which has been used in China for medicinal purposes for hundreds of years. Research performed during the past 15 years suggests that ginkgo may be of value in the treatment of age-related physical mental deterioration, dementia, peripheral vascular disease and organic impotence. Ginkgo may also reduce the severity of depression in individuals with cerebral dysfunction. Preliminary or uncontrolled studies suggest that ginkgo may benefit some patients suffering from tinnitus, vertigo, acute cochlear deafness, macular degeneration, cyclic edema and asthma.
Blood flow amelioration, increasing the brain blood-supply;
Inhibition of oxidative damage;
Memory amelioration, activate thinking ability;
Blood fat and dense amelioration; anti cardiovascular disease;
Eliminate hands and feet anaesthesia;
Treatment of hypofunction of the brain and peripheral vascular, and specially effective for memory loss, dementia;
| Analysis Items |
Specifications |
Results |
Methods used |
| Identification |
TLC-Plant Drug Analysis |
Conforms |
TLC |
| Appearance |
Fine Yellowish Brown Powder |
Conforms |
Visual test |
| Odor & Taste |
Characteristic (With bitter taste) |
Conforms |
Organoleptic test |
| Bulk Density |
35-45g/100ml |
Conforms |
Density Meter |
| Particle Size |
99% through 80 Mesh |
Conforms |
80 Mesh Screen |
| Solubility |
Soluble in ethanol & water solution |
Conforms |
Visual |
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| Assay |
Ginkgo flavone glycosides 22%~27% |
24.97% |
HPLC |
| Terpene lactones 5.4%~6.6% |
6.22% |
HPLC |
| Ginkgolide A+B+C 2.8%~3.4% |
3.38% |
HPLC |
| Bilobalides 2.6%~3.3% |
2.91% |
HPLC |
| Ginkgolic Acid |
NMT 5ppm |
Conforms |
HPLC |
| Loss on Drying |
NMT 5.0% |
2.75% |
5g / 105ºC / 2hrs |
| Extract Solvents |
Ethanol & Water (70/30 V/V) |
Conforms |
/ |
| Solvent Residues |
NMT 0.5% |
Conforms |
GC |
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| Heavy Metals |
NMT 10ppm |
Conforms |
Atomic Absorption |
| Arsenic (As) |
NMT 1ppm |
Conforms |
Atomic Absorption |
| Lead (Pb) |
NMT 3ppm |
Conforms |
Atomic Absorption |
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| Sterilization Method |
High temperature & pressure for a short time of 5~10 seconds |
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