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FlavonolGlycosides: | 22.0%~27.0% | TerpeneLactones: | 5.4%-6.6% |
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Ginkgolic Acid: | <1ppm | Form: | Powder |
Shelf Life: | 3years | Specification: | Lactones 6%,Flavone 24% |
High Light: | standardized ginkgo biloba,pure ginkgo biloba extract |
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%
Ginkgo Biloba Standardized Extract
YuzhouWuet al, Pharmacology, Original Paper Planta Med 2007; 73(7): 624-628
Part 3
Eighty CAD patients were randomly assigned to either GBE or saline (control) groups. LAD blood flow and brachial artery FMD were measured non-invasively using high-resolution ultrasound before and after intravenous administration of GBE or saline.
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 |
EP SPECIFICATION SHEET
Ginkgo dry extract | |
Tests | Specifications |
Characters | Bright yel1ow-brown,powder or friable mass |
Identification | Thin-layer chromatography: The sequence of zones present in the chromatograms obtained with the reference solution and the test solution should conform to that of European Pharmacopeia |
Loss on drying | Not more than 5.0% |
Heavy metals | Not more than 20 ppm |
Sulphated ash | Not more than 0.8% |
Ratio of flavonoid glycoses peak areas |
Quercetin: Kaempferol between 0.8-1.2
Isorharnnetin: Quercetin not less than 0.15 |
Residual pesticide | Total BHC: Not more than 0.2 ppm |
Total DDT: Not more than 0.2 ppm | |
PCNB: Not more than 0.1 ppm | |
※Ethanol | Not more than 0.2% |
Assay |
Flavonoids,expressed as flavone glycosides: 22.0 to 27.0%; Bilobalide: 2.6 to 3.2%; Sum of ginkgolides A,B and C: 2.8 to 3.4%;
Ginkgolic acids: maximum 5 ppm |
Microbiological quality |
TAMC: Not more than 800 CFU/g (In-house),Not more than 1000 CFU/g (COA) TYMC: Not more than 80 CFU/g (In-house),Not more than100 CFU/g (COA) Bile-tolerant gram-negative bacteria: Not more than 100CFU/g Escherichia coli: Absence per g Salmonella: Absence per 25g |
Aflatoxin (Commission test) |
Aflatoxin B1: Not more than 2 ug/kg Sum of Aflatoxin Bl,B2,Gl and G2: Not more than 4 ug/kg |
Ochratoxin (Commission test) |
Ochratoxin A: not more than 20 ug/kg |
Contact Person: Mia Tao
Tel: +8613282563726