
Description of Ginkgo Biloba Extract:
Manufacturers extract ginkgo leaf extract from the dried leaves of Ginkgo biloba L., a plant of the Ginkgoaceae family, using appropriate solvents to enrich the active ingredients.
Ginkgo leaf extract is a light yellow-brown flowable powder with a bitter taste. It has the effects of promoting blood circulation, removing blood stasis, and unblocking meridians. It is widely used in medicines, health products, food additives, functional beverages, cosmetics and other fields.
Specification of Ginkgo Biloba Extract:
| Item | Ginkgo Biloba Leaf Extract |
|---|---|
| Botanical Source | Ginkgo biloba L. |
| Part Used | Leaf |
| Concentration/Standardization | 10:1, 20:1, 30:1, 50:1 or 24% flavonoids, 6% lactones |
| Appearance | Fine brown-yellow powder |
| Assay | Thin-layer chromatography (TLC), High-performance liquid chromatography (HPLC) |
| Packaging | ≤ 5KG: Double-layer plastic packaging (aluminum foil outer layer), > 25KG: Cardboard barrel, Standard packaging: 25KG/drum |
| Storage | Sealed, protected from light, dry, cool, and well-ventilated |
| Shelf Life | 2 years |
| Item | Specification | Result |
|---|---|---|
| Total Ginkgo Flavonglycosides | NLT 24% | Conforms |
| Total Terpene Lactones | NLT 6% | Conforms |
| Ginkgolic Acid | NMT 5ppm | Conforms |
| Appearance | Brown yellow powder | Conforms |
| Odor | Characteristic odor | Conforms |
| Mesh Size | 100% pass 80mesh | Conforms |
| Ash Content | NMT 5.0% | Conforms |
| Loss on Drying | NMT 5.0% | Conforms |
Heavy metal and microbiological analysis:
| Item | Specification | Result |
|---|---|---|
| Chemical Control | ||
| Lead | NMT 2 ppm | Conform |
| Cadmium | NMT 1 ppm | Conform |
| Mercury | NMT 1 ppm | Conform |
| Arsenic | NMT 2 ppm | Conform |
| Microbiological Tests | ||
| Total Plate Count | NMT 1000 cfu/mg | Conform |
| Yeast & Mold | NMT 25 cfu/mg | Conform |
| E. coli | NMT 40 MPN/100g | Conform |
| Staphylococcus | Negative | Conform |
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