Giant knotweed Extract
Product Name:Giant knotweed extract resveratrol/polygonum cuspidatum extract resveratrol/giant knotweed
Plant Source: root
Specification: Resveratrol 5%-98%
Latin name:Polygonum cuspidatum
Appearance: Brown/white powder
Test Method: HPLC/UV/TLC
Description:
Resveratrol is a naturally occurring phytoalexin produced by some higher plants in response to injury or fungal infection. Phytoalexins are chemical substances produced by plants as a defense against infection by pathogenic microorganisms, such as fungi. Alexin is from the Greek, meaning to ward off or to protect. Resveratrol may also have alexin-like activity for humans. Epidemiological, in vitro and animal studies suggest that a high resveretrol intake is associated with a reduced incidence of cardiovascular disease, and a reduced risk for cancer.
hunction
1> Anti-cancer
2> Effect on cardiovascular system
3> Antibacterial and antifungal
4> Nourish and protect liver
5> Antioxidant and quench free-radicals
6> Impact on the metabolism of osseous issue
Appiication
1.Applied in the food field,
2.Applied in the health product field
3.Applied in the pharmaceutical field
Our Services
Treat every client with sincerity
In good faith to make friends
Customer satisfaction is the eternal pursuit
Quality is the foundation of survival and development of enterprises
We want to work with you to create a better life
FAQ
Q1: Can I get some samples?
A: Yes, we can supply the free sample, only need the shpping cost from customers.
Q2: How to start orders or make payments?
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union or Paypal or MoneyGram or Alibaba Trade Assurance.
Q3: How to confirm the Product Quality before placing orders?
A: Every product is with professional COA. Please be sure about the quality.
If any doubt, sample is available to you to be tested by yourself.
Q4: How about delivery leadtime?
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q5: How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
| Item |
Specification (in-house) |
Results |
Methods |
| Marker compound |
Resveratrol 50% |
50.32% |
HPLC |
| Marker compound |
Emodin <5% |
3.76% |
HPLC |
| Appearance & Color |
Yellow Brown |
Conform |
GB5492-85 |
| Odor & Taste |
Characteristic |
Conform |
GB5492-85 |
| Plant Part Used |
Root |
Conform |
|
| Extract Solvent |
Ethanol |
Conform |
|
| Bulk Density |
0.4-0.6g/ml |
0.50g/ml |
|
| Mesh Size |
80 |
100% |
GB5507-85 |
| Loss on Drying |
≤5.0% |
3.41% |
GB5009.3 |
| Ash Content |
≤5.0% |
3.32% |
GB5009.4 |
| Solvent Residue |
Negativ |
Conform |
GC(2005 E) |
| Heavy Metals |
| Total Heavy Metals |
≤10ppm |
3ppm |
AAS |
| Arsenic (As) |
≤1.0ppm |
0.15ppm |
AAS(GB/T5009.11) |
| Lead (Pb) |
≤1.5ppm |
0.7ppm |
AAS(GB5009.12) |
| Cadmium |
<1mg/kg |
Not Detected |
AAS(GB/T5009.15) |
| Mercury |
≤0.3ppm |
Not Detected |
AAS(GB/T5009.17) |
| Microbiology |
| Total Plate Count |
≤1000cfu/g |
<100 |
GB4789.2 |
| Total Yeast & Mold |
≤25cfu/g |
<10 |
GB4789.15 |
| E. Coli |
≤40MPN/100g |
Not Detected |
GB/T4789.3-2003 |
| Salmonella |
Negative in 25g |
Not Detected |
GB4789.4 |
| Staphylococcus |
Negative in 10g |
Not Detected |
GB4789.1 |
| Packing and Storage |
25kg/drum Inside: Double-deck plastic bag, Outside: Neutral cardboard barrel & Leave in the shady and cool dry place |
| Shelf Life |
3 Year When Stored properly |
| Expiration Date |
3 Year |
Audited Supplier 
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