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Changsha Herbal Ingredient Co., Ltd.

Resveratrol, Polygonum Cuspidatum Extract, Polydatin manufacturer / supplier in China, offering Giant Knotweed Extract 50%-99%Resveratrol for Anti-Cancer, Instant Green Tea Powder for Beverage and Drinks, 100% Natural Jujube Extract, Zizyphus Jujuba Extract and so on.

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Supplier Homepage Product Plant /Herbal Extract Giant Knotweed Extract 50%-99%Resveratrol for Anti-Cancer

Giant Knotweed Extract 50%-99%Resveratrol for Anti-Cancer

Purchase Qty.:
1-4 5-24 25-99 100+
FOB Unit Price: US $110 US $108 US $105 US $100
Purchase Qty. (kg) FOB Unit Price
1-4 US $110
5-24 US $108
25-99 US $105
100+ US $100
Get Latest Price
Port: Changsha, China
Production Capacity: 20ton/Year
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: CHI-GKE
  • Assay Method: HPLC
  • Application: Food, Health Care Products, Medicine, Personal Care
  • Extract Source: Polygonum Cuspidatum
  • Active Ingredient: Resveratrol
  • MOQ: 1kg
  • Used Part: Root and Rhizome
  • Main Use for: Anti-Atherosclerotic Activity Immune-Stimulating
  • Delivery: Shipped by Air,DHL,TNT
  • Transport Package: 5kg/Bag, 25kg/Drum
  • Origin: P. R. China
  • Certification: ISO, FDA, cGMP
  • Application Form: Injection, Tablet, Capsule
  • State: Powder
  • Latin Name: Polygonum Cuspidatum
  • CAS No: 501-36-0
  • Lead Time: Within 7days After Confirming Order
  • Extract Solvent: Ethanol
  • Personal Care Use: Whitening
  • Trademark: CHI
  • Specification: 50%, 98%, 99%trans-resveratrol
  • HS Code: 130219
Product Description

Giant  Knotweed Extract-Resveratrol:
Giant Knotweed Extract 50%-99%Resveratrol for Anti-Cancer


Giant Knotweed Rhizome 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.

Specifications: 50%, 98%,99% Resveratrol Test by HPLC
Molecular Formula: C14H12O3
Molecular Mass: 228.24
CAS NO: 501-36-0
Giant Knotweed Extract 50%-99%Resveratrol for Anti-Cancer

Traditional Andmodernuses:

Huzhang ("tiger cane") or giant knotweed is an east Asian species (Polygonum cuspidatum), belonging to the Polygonaceae family. Documented uses in traditional Chinese medicine date to the first century BC, and contemporary medical uses supported by clinical results include acute microbial infections or viral hepatitis, chemo- or radiation-induced leukocytopenia, atherosclerosis, and hyperlipidemia.

Active Compounds:
Huzhang is characterized by anthraquinones and their glycosides, napthoquinone, 3,5,4¡Â-trihydroxy stilbene (i.e., resveratrol), piceid, fallacinol, citreorosein, questin, questinol, protocatechuic acid, (+) catechin, 2,5-dimethyl-7- hydroxychromone, 7-hydroxy-4-methoxy-5-methylcoumarin, flavonols, polysaccharides, and condensed tannins.

Regulatory Status:
Under U.S. law, huzhang extract is regulated as a dietary supplement. As of this writing, no European governments had issued monographs or regulations for nutraceutical uses of huzhang.

NOTE: The statements in this publication have not been evaluated by the FDA.

Indications and Uses:

Studies suggest that resveratrol has anti-atherosclerotic activity and that it might have some immune-stimulating and anti-cancer effects. Human studies are few in number and inconclusive due to short duration and poor design.


 ItemsSpecification Results Remark
AppearanceFree-flowing powderCompliesVisual
Extraction methodWater&Grain Alcohol Complies 
Carriers UsedNoneComplies 
Particle size100% through 80 meshComplies 80 Mesh Screen
Moisture5.0%3.93%GB/T 5009.3
Ash5.0%2.69%GB/T 5009.4
Heavy Metals (as Pb)≤10 mg/kgCompliesGB/T 5009.74
Pb≤1 mg/kgCompliesGB/T 5009.75
As≤1 mg/kgCompliesGB/T 5009.76
Total Bacteria≤10,000CFU/gCompliesGB/T 4789.2
Yeast & Molds≤100CFU/gCompliesGB/T 4789.15
StaphylococcusAbsentCompliesGB/T 4789.10
Coliform bacteria/E.Coli AbsentCompliesGB/T 4789.3
SalmonellaAbsent CompliesGB/T 4789.4
PackagingNet 25.00kg/drum.
 Shelf life24 months when properly stored. Tightly sealed in a clean, cool, dry place. Keep away from strong, direct ight.
ConclusionComplies with specification
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