Ginkgo biloba extract is the active ingredients extracted from ginkgo leaves with advanced modern technology, its principal specifications consist in low acidity (ginkgolic acid <5ppm. 1ppm) and water solubility. The effective ingredients in the extract are flavone glycosides and terpene lactones. People use it to make dietary supplements for cognitive health.
Market specification: Ginkgo Flavones Glycoside ≥24% and Total Terpence Lactones ≥ 6%, as below:
Ginkgo biloba, of the family Ginkgoaceae, is a tree commonly called a living fossil, as the order of Ginkgoales which contains the family ginkgoaceae only consists of this plant, as the other members of the order that existed 190 million years ago have since become extinct. Individual trees may live as long as 1,000 years and grow to a height of approximately 38 m. Ginkgo has characteristic fan-shaped leaves. The species is dioecious. Male trees older than 20 years blossom in the spring, and adult female trees produce a plum-like, gray-tan fruit that falls in late autumn. Its fleshy pulp has a foul, offensive odor and can cause contact dermatitis. The edible inner seed resembles an almond. The leaf extract is currently one of the top 10 most popular dietary supplements in the western world, while in traditional chinese medicine the fruits and seeds were first used.
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ANALYSIS |
SPECIFICATION |
RESULTS |
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TLC |
Same spots |
Complies |
|
Assay |
Total Flavones Glycosides≥24% Quercetin Kaempferol Isorhamnetin |
25.24% HPLC 10.79% 11.77% 2.68% |
|
Total Ginkgolides (Lactones)≥6% Ginkgolides A Ginkgolides B Ginkgolides C Bilobalides |
7.07% 2.33% 1.22% 0.87% 2.65% |
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|
Dissociative Quercetin Dissociative Kaempferol Dissociative Isorhamnetin |
<1.0% <1.0% <0.4% |
0.39% 0.30% 0.15% |
|
Sophoricoside |
Negative |
Negative |
|
Quercetin areas/Kaempferol areas |
0.8-1.2 |
0.92 |
|
Isorhamnetin areas/Quercetin areas |
≥0.15 |
0.23 |
|
Ginkgolic Acid |
≤5ppm |
3.5ppm |
|
Organoleptic |
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|
Appearance |
Light yellow brown powder |
Complies |
|
Odor |
Characteristic |
Complies |
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Taste |
Bitter |
Complies |
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Physical Characteristics |
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|
Particle Size |
100% through 100 mesh |
Complies |
|
Loss on Drying |
≤5.0% |
2.31% |
|
Ash content |
≤0.8% |
0.45% |
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Extract Solvents |
Water and ethanol |
Complies |
|
Solvent Residue |
0.05% |
0.01% |
|
Pesticides Residue |
|
|
|
Pesticides Residue |
≤2ppm |
Complies |
|
666 |
<0.2ppm |
Negative |
|
DDT |
<0.2ppm |
Negative |
|
Heavy metals |
||
|
Total Heavy Metals |
≤5ppm |
Complies |
|
As |
≤0.1ppm |
<0.1ppm |
|
Hg |
≤0.2ppm |
<0.15ppm |
|
Pb |
≤0.05ppm |
≤0.05ppm |
|
Cd |
≤0.01ppm |
≤0.01ppm |
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Microbiological Tests |
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|
Total Plate Count |
≤1000cfu/g |
190cfu/g |
|
Total Yeast & Mold |
≤100cfu/g |
15cfu/g |
|
E.Coli |
Negative |
Negative |
|
Salmonella |
Negative |
Negative |
1. Cognitive health
a) Age-Related Cognitive Decline (Alzheimer’s Disease)
Most clinical trials have found Ginkgo biloba extract may improve memory and quality of life and slow progression in the early stages of Alzheimer’s disease and other Age-Related Cognitive Decline. Ginkgo biloba extract is an approved treatment for early-stage Alzheimer’s disease in Europe. Ginkgo seems to improve blood circulation, which might help the brain function better.
Recommended dosage —— 40-120 mg three times a day with meals
b) Cognitive enhancement
Most evidence suggests that supplementation of ginkgo biloba extract can slightly improve memory, speed of thinking, and attention in otherwise healthy youth.
Recommended dosage —— 120-240 mg one to four hours before performance
c) Memory
There appears to be a fairly reliable increase in short term memory and free recall associated with ginkgo supplementation in older individuals (55yrs or above) either with or without diagnosed neurodegenerative disease states.
Recommended dosage —— 120-240 mg per day of ginkgo leaf extract, divided in two or three doses
2. Symptoms of Intermittent Claudication
Some evidence shows that taking ginkgo leaf extract seems to increase the distance people with poor blood circulation in their legs can walk without pain.
Recommended dosage —— 120-240 mg per day of ginkgo leaf extract three times a day
3. Altitude Sickness
Several studies have shown tat supplementation with ginkgo extract can prevent mountain sickness.
Recommended dosage —— 240mg daily for 1-5 days prior to a trip up a mountain
| By Express | By Air | By Sea |
|---|---|---|
| Suitable for under 50kg Fast: 7-15 days High cost Door to door service easy to pick up the goods |
Suitable for more than 50kg Fast: 7-15 days High cost Port to port professional broker needed |
Suitable for more than 500kg Slow: 7-45 days Low cost Port to port professional broker needed |
| Paypal(Suitable for under 500USD) | Alipay | Bank Transfer(Suitable for all amount) |
|---|---|---|
| 15% charges Arrive time: immediately Easy to handle |
Reasonable bank charges Arrive time: immediately Easy to handle |
Reasonable bank charges Arrive time:2-3 work days Easy to handle |
With an investment of 80 million RMB, the construction of the factory started from 2012 and was finished at 2014. There are three production lines that meet the GMP standard in our factory which can process 6,000 ton raw materials each year with production of 900 ton plant extract. Our factory has been issued with the GMP certificate by China Food and Drug Administration in the year 2014.
Due to the complexity of plant extract and the deficiency industrial standards, one of our founders established a professional testing lab with an investment of 15 million RMB in 2014. The laboratory is equipped with five High performance liquid chromatography, one Gas Chromatograph, one Atomic Absorption Spectrometer, one Liquid mass spectrometry, one TLC scanner, one Automatic polarimeter, one Infrared Spectrometer, one Automatic melting point apparatus, one Mold incubator, one UV-visible spectrophotometer, one Portable Pressure Steam Sterilizer, one Single clean bench, one Explorer quasi-microbalance, one Electronic balance, and one Experimental resistance furnace.
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To ensure that the production process is under our control, we have built factory of our own, what’s more, we have bought the most shares of several high-quality manufacturers. From raw material selection, to every specific production procedure, to the storage of every kind of product, every detail is under the inspection of our specialists with at least ten years’ experience.
