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Product Details:
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FlavonolGlycosides: | 22.0%~27.0% | Ginkgolic Acid: | <1ppm |
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Type: | Botanical Extract | Form: | Powder |
Packaging: | Drum | Appearance: | Light Brown Finde Powder |
High Light: | nutrition ginkgo biloba,ginkgo biloba for eyes |
CONBA® Ginkgo Biloba Extract: USP40 24/6 Ginkgo Acid<1ppm, EP9.0 24/6 Ginkgo Acid<1ppm, Water soluble 24/6 1g/10ml,
Injection solution GA>2.2% GB>1.2% GC>1.2%
Company Introduction Part 2
Conba has won several honorable titles including National Torch High-Technology Enterprise, National Innovative Enterprise, National-certified Enterprise Technology Center, National Post-doctoral Research Workstation and Key Laboratory in Traditional Chinese Medicine Technology in Zhejiang Province.
Flavonol aglycone
Flavonol aglycone | R1 | R2 | R3 | R4 |
Kaempferol | H | H | H | H |
Quercetin | OH | H | H | H |
Isorhamnetin | OCH3 | H | H | H |
Terpene lactones
Terpene lactones | R1 | R2 |
Ginkgolide A | H | H |
Ginkgolide B | OH | H |
Ginkgolide C | OH | OH |
USP SPECIFICATION SHEET
Item | Specification | Test Method |
Appearance | Light yellow-brown powder | Visual |
Identification | ||
Identification A | Should conform USP40 | TLC ID. |
Identification B | Should conform USP40 | HPLC ID. |
Apex area ratio | ||
K:Q>0.7 | HPLC | |
I:Q>0.1 | HPLC | |
Examination | ||
Limit of Rutin Limit of Quercetin Limit of Ginkgolic Acid |
NMT 4% NMT 0.5% NMT 5ug/g |
HPLC |
Loss on drying | NMT5.0% | Internal method |
Heavy metal(periodically test) | ||
Cadmium(Cd) | NMT0.5mg/kg | Internal method |
Lead(Pb) | NMT1.0 mg/kg | Internal method |
Mercury(Hg) | NMT1.5 mg/kg | Internal method |
Arsenic(As) | NMT1.5 mg/kg | Internal method |
Pesticide residue | Meet USP40 <561> | USP40 <561> |
Ethanol residue | NMT0.5% | Internal method |
Microbiological limit | ||
Aerobic plate count | NMT 104cfu/g | Internal method |
Mold&Yeast | NMT 103cfu/g | Internal method |
Salmonella | Not detected per 25g | Internal method |
E.Coli | Not detected per gram | Internal method |
Contents Test | ||
Content of flavonol glycosides | 22.0%-27% | HPLC |
Quercetin | / | |
Kaempferol | / | |
Isorhamnetin | / | |
Terpene lactones | 5.4%~12% | HPLC |
Bilobalides | 2.6%~5.8% | HPLC |
Ginkgolides A+B+C | 2.8%~6.2% | HPLC |
Contact Person: Mia Tao
Tel: +8613282563726