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| Organic Ginkgo Leaf Extract powder USP (24%/6% <5ppm) Specification Sheet | |||
|---|---|---|---|
| General Information | |||
| Botanical Source: | Ginkgo biloba | ||
| Preparation Type: | Extract, concentrate, dry, standardize | ||
| Items | Specification | Test Method | Result |
| Organoleptic: | Fine yellow to brown powder with a characteristic taste and odor | Organoleptic evaluation | Conforms |
| Identification: | The peak for kaempferol is 0.8~1.2 times the size of that of quercetin | USP Test B | 0.94 |
| Identification II: | Peak for Isorhamnetin is NLT 0.1 times the size of that of quercetin | USP Test B | 0.23 |
| Loss on drying: | <5.0% | 3 hours @105°C | 2.5% |
| Particle size: | NLT 95% through 80 mesh | Sieve analysis | 100% |
| Bulk density: | Reported | As per USP | 0.50g/ml |
| Flavone glycosides: | 22.0~27.0% | HPLC | 24.51% |
| Quercetin glycoside: | Reported | HPLC | 11.09% |
| Kaempferol glycoside: | Reported | HPLC | 10.82% |
| Isorhamnetin glycoside: | Reported | HPLC | 2.60% |
| Terpene lactones: | 5.4~12.0% | HPLC | 7.18% |
| Ginkgolide A+B+C: | 2.8~6.2% | HPLC | 3.07% |
| Bilobalide: | 2.6~5.8% | HPLC | 4.11% |
| Ginkgolic acids: | <5ppm | HPLC | <1ppm |
| Limit of Rutin: | <4.0% | HPLC | 2.76% |
| Limit of Quercetin: | <0.5% | HPLC | 0.21% |
| Limit of Genistein: | <0.5% | HPLC | N.D. |
| Solvents residues: | Complies with USP <467> | GC-HS | Conforms |
| Pesticides residues: | Complies with USP <561> | GC-MS | Conforms |
| Heavy Metals | |||
| Arsenic (As): | <2ppm | ICP-MS | 0.28ppm |
| Lead (Pb): | <3ppm | ICP-MS | 0.26ppm |
| Cadmium (Cd): | <1ppm | ICP-MS | <0.02ppm |
| Mercury (Hg): | <0.5ppm | ICP-MS | <0.02ppm |
| Microbiology | |||
| Total plate count: | <10,000cfu/g | WHO/PHARMA/92.559 Rev.1 | <100cfu/g |
| Yeast & Mold: | <200cfu/g | WHO/PHARMA/92.559 Rev.1 | <10cfu/g |
| Enterobacteriaceae: | <10cfu/g | WHO/PHARMA/92.559 Rev.1 | <10cfu/g |
| E.Coli: | Negative | WHO/PHARMA/92.559 Rev.1 | Negative |
| Salmonella: | Negative | WHO/PHARMA/92.559 Rev.1 | Negative |
| S. aureus: | Negative | WHO/PHARMA/92.559 Rev.1 | Negative |
| Packaging & Storage | |||
| Storage: | Store in a cool, dry place, avoiding direct sunlight. | ||
| Re-test date: | 24 months from the manufacturing date when properly stored and packed. | ||
| Package: | Food-grade multilayer polyethylene bags, 25kg in one fiber drum. | ||
