Ginkgo Biloba Extract

Ginkgo Biloba Extract

Specifications CP2015 USP40 EP9.1 EGb761 Korea Pharm.
Total Flavonol Glycosides ≥24% 22%~27% 22%~27% 22%~27% 22%~27%
Peak Area(Kaempferol/Quercitin) 0.8-1.2 ≥0.7 —- —-
Peak Area(Isorhamnetin/Quercetin) ≥0.15 ≥0.1 —- —-
Total Terpene Lactones ≥6% 5.4%~12.0%(2.8%~6.2%Ginkgolides (A+ B+ C),2.6%~5.8%Bilobalide) 2.8%~3.4%Ginkgolides (A+ B+ C),
2.6%~3.2%Bilobalide
5%~7%(2.8%~3.4%Ginkgolides (A+ B+ C),
2.6%~3.2%Bilobalide)
5%~7%(2.8%~3.4%Ginkgolides (A+ B+ C),
2.6%~3.2%Bilobalide)
Ginkgolic Acids <10ppm <5ppm <5ppm <5ppm <5ppm
Plant Extract Ratio —- 35~67:1 —- 35~67:1 —-
Solvents System Ethanol&Water Ethanol&Water Ethanol&Water Acetone&Water Ethanol&Water
Free Quercetin ≤10.0mg/g(≤1%) ≤0.5% —- —- —-
Free Kaempferol ≤10.0mg/g(≤1%) —- —- —- —-
Free Isorhamnetin ≤4.0mg/g(≤0.4%) —- —- —- —-
Rutin —- ≤4% —- —- —-

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