Herbal Extract Giant Knotweed Extract 98% Polydatin for Medcine
Polygonum cuspidatum is the dry rhizome and root of polygonum
cuspidatum Sieb. et Zucc. Harvest at spring and autumn every year,
and remove the fibrous root, make it clean, and then cut it into
short pieces or junks, open-air drying.
Polygonum cuspidatum extract polydatin is the glycoside of
resveratrol originally isolated from the Chinese herb Polygonum
cuspidatum. The polydatin has been shown to inhibit platelet
aggregation and elevate the ratios of LDL-C/HDL-C and TC/HDL-C.
Product Name: Polygonum Cuspidatum ExtractItem: Polydatin
Specifications: polydatin 20% 60% 98%
Active Ingrident: polydatin
Molecular weight: 407.39
Appearence: pale Yellow Powder
Packaging: Foli Bag/ Paper Drum/Carton
Payment: T/T West Union Trade Assurance
Shelf Time: 2 year
Storage: Keep Dry and Keep away from Sunlight
Certificate of Analysis
|Analysis Items||Specifications||Test Methods|
|Appearance & Color||Fine white powder||Visual|
|Odor & Taste||Characteristic||Organoleptic|
|Mesh Size||NLT 90% through 80 mesh||80 Mesh Screen|
|Solubility||Partially soluble in hydro-alcoholic solution||Visual|
|Assay||NLT 98% Polydatin||HPLC|
|Method of Extraction||Hydro-alcoholic||/|
|Extract Solvent||Grain alcohol/Water||/|
|Moisture Content||NMT 5.0%||5g / 105℃ / 2hrs|
|Ash Content||NMT 5.0%||2g / 525℃ / 3hrs|
|Heavy Metals||NMT 10ppm||Atomic Absorption|
|Arsenic (As)||NMT 1ppm||Atomic Absorption|
|Cadmium (Cd)||NMT 1ppm||Atomic Absorption|
|Mercury (Hg)||NMT 0.1ppm||Atomic Absorption|
|Lead (Pb)||NMT 3ppm||Atomic Absorption|
|Sterilization Method||High Temperature & High Pressure for short time (5” – 10”)|
|Total Plate Count||NMT 10,000cfu/g|
|Total Yeast & Mold||NMT 1,000cfu/g|
|Packing and Storage|
Pack in paper-drums and two plastic-bags inside. Net Weight:
Store in a well-closed container away from moisture.
|Shelf Life||2 years if sealed and store away from direct sun light.|
Functions of Giant Knotweed Extract
1. Polydatin is derived from natural, 100% plant extracts, delicate
and extracted with the use of a special process, the chemical
2. Standardized production in strict accordance with industry
standards, the test of the purity and microorganism
indexes.Suitable for all kinds of pharmacology experiment.Products
are from the operator The national drug and food standards.
3. At the same time, we still kept in perfect product process
research and development more products to meet market demand of
high quality monomer.You are welcome to put forward valuable
opinions and Suggestions.
Applications of Giant Knotweed Extract
1. Applied in food field, it's used as food additive with the
function of lengthening life .
2. Applied in pharmaceutical field,it's frequently used as medicine
supplement or OTCS ingredients and owns good efficacy for treatment
of cancer and cardio-cerebrovascular disease.
3. Applied in comestics,it's can delay aging and prevent UV
1. 1kg Aluminum Foil Bag.
2. Standard packed In fiber-drums with two-plastic bags inside.
Wight: Net weight 25kg/drum; gross weight 28kg/drum
Drum Size & Volume: I.D.37cm x H51cm, 0.070cubic meter/ drum
3. As customer's requested.
Payment & Shipping Details:
|Delivery Method||Express (DHL, FedEx, EMS)||By Air||By Sea|
|Shipping Quantity||Under 100kg||Over 100kg||Over 500kg|
|Delivery Time||3-5 days||5-7 days||20-30 days|
|Characteristic||Door to Door||Airport to Airport||Sea Port to Sea Port|
1. Is this product natural source or from chemical synthetic?
All the plant/herb extracts products showed on our website are 100%
natural source.The carrier used for partial polysaccharides riched
extract powder products is maltodextrin and the adding dosage is in
range of 10%~15%. This range is reasonable and totally meet the
regulation of herbal products additive range.
2. How about the extraction solvent used in process of extraction?
Normally, we use two kinds of extraction process, one is
traditional process which only use pure water as extract solvent,
the other is common using process with extraction solvent ethanol
from concentration 20%-90%. We never use the solvents harm to
3. What is your MOQ(minimum order quantity) and if we can get
samples before we place orders?
The MOQ is based on the product itself. For example, some of them
have a very high unit value, the MOQ can be 100mg-500mg.For other
products, you can place the order in the name of samples with
quantity 1-5kg.Additional, the price for sample orders will be
higher about 10%. Before placing orders, we are happy to offer
samples for our clients. Sample testing is very necessary by which
can avoid unnecessary loss.
4. How about your payment terms and time we get samples or goods?
Western union and paypal is preferred for small size samples
orders. Bank T/T is for common orders. L/C at sight is also
available for the non-risk countries.
The lead time will be 1-3days and then we will deliver our goods to
our forwarder.Once we get the airway bill no., we will inform you.
Generally, the delivery time by express is 3-7days by express,
5-7days by air.
5. When I received the goods and found there is quality problem,
how can I get my legal rights?
Firstly, please re-check again the package before signing the goods
from deliveryman. If the quality problem caused by product itself,
please take photos or give us the testing reports, after we confirm
the reasons caused the problems, we will timely arrange change
goods for free or return your payment.Generally,our quality control
deportment will be responsible for the goods seriously and try our
best to avoid the quality problems.
6. Can I get customize service for the specifications your company
cannot be offered?
Service for every clients is one of our business principles. Our
research team will discuss with your developing team the detailed
requests, like products apperance, odor, water solubility, etc.
Once we make the samples out based on your requests, we will mail
you to confirm if it meet your demand. If yes, we can start mass