Ginkgo Biloba Extract

1 General Description:

Specification Standards :

(1)Routine
Total Ginkgo flavone glycosides > 24%
Quercatin: kaemperol 0.8--1.5
Total terpene lactones > 6%

(2) CP2005
Total Ginkgo flavone glycosides > 24%
Quercatin: kaemperol 0.8--1.5
Total terpene lactones > 6%
Ginkgolic acid < 10ppm

(3) EGB761
Total Ginkgo flavone glycosides > 24%
Quercatin: kaemperol 0.8--1.5
Total terpene lactones > 6%
Ginkgolic acid < 5ppm

(4) Minimal acid
Total Ginkgo flavone glycosides > 24%
Quercatin: kaemperol 0.8--1.5
Total terpene lactones > 6%
Ginkgolic acid < 1ppm

(5) Europe Standards
Total Ginkgo flavone glycosides 22-27%
Total terpene lactones 5-7%
G.A+G.B+G.C 2.8-3.4%
B.B 2.6-3.2%
Ginkgolic acid <5ppm;<1ppm

The quality specification of ginkgo biloba extract in CP2005:

Preparation: Withdraw under a reflux condenser of ethanol ,adsorb with macroporous resin, spray to dry, comminute.

Character: Yellowish brown to brownish powder, mildly bitter flavour

Test: Moisture<5.0%

Residue on ignition<0.8%

Heavy metal is not more than twenty millionths, namely less than 20ppm

The peak area ratio of flavonoid glycoside, namely Quercatin: kaemperol should be 0.8--1.5

Total ginkgo acid should be not more than ten millionths, namely 10ppm

Assay: High performance liquid chromatography

Total Ginkgo flavone glycosides >24%

The content of total ginkgo flavone glycosides is the sum of the content of quercatin, kaemperol and isorhamnetin (Quercatin: kaemperol 0.8-1.5. If it surpasses 1.5, it should be suspected to add quercatin.)

Total terpene lactones > 6%

The content of total terpene lactones is the sum of the content of bilobalide, ginkgolide A, B and C.

Function:

Promoting blood circulation, removing blood stasis and obstruction in the channels. It is indicated in the prevention and treatment of obstruction of Qi in chest and stroke induced by blood stasis with symptoms including chest pain, palpitations, stiff tongue, dysphasia or aphasia, hemiparalysis, coronary disease, angina pectoris, Cardiac infarction, cerebral coronary thrombembolia,etc.

it is widely used as the additive in health care products, foods, beverages and cosmetics etc.
2.Manufacturing Data:

Botanical Name : Ginkgo biloba L.

Part of plant used : leaves ;

Method of Manufacturing : maceration , reflux ;

Solvent for Extraction : Ethanol / water

Carrier / Excipient : none ;

Ratio of Botanical to Native Extract: 50:1

3.Quality Data :

Description: Yellowish brown to brownish powder;mildly bitter flavour ;

Particle Size : 80 mesh

Loss on Drying: Not more than 5%

Heavy Metals <20ppm

4.Microbiological Inspection :

Total Plate Count <1000cfu/g

Total Mold Count <100cfu/g

E. Coli  Negative

Live Mite Negative

5.Manufacture:

Ningbo Dekang Biochem Co., Ltd.

Mr. Alex Wang

Tel: +86-574-81625858, 66105155

Fax:+86-574-83033289, 87450359

MSN: mingqianwang@hotmail.com

E-mail: mingqianw@yahoo.com.cn