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Huzhang ("tiger cane") or giant knotweed is an east Asian species




Product description

English Name:Resveratrol
Latin Name:Polygonum cuspidatum Sieb. et Zucc.
Plant Description: 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.
Use part:Root & Stem
Specification:Resveratrol 98% (HPLC)
Molecular formula:C14H12O3
Molecular weight: 228.24
CAS NO: 501-36-0
Molecule structure and HPLC chromatogram

  Resveratrol(C14H12O3=228.24)  Resveratrol HPLC Assay 98%

Standard of quality:

Item Specification Test Result
Assay(Resveratrol) ≥98%
Description White Fine Powder Conformed
Mesh Size 100%pass 80mesh Conformed
Ash Content ≤5.0% Conformed
Loss on Drying ≤5.0% Conformed
Heavy Metal ≤10ppm Conformed
 (Pb) ≤2ppm Conformed
 (As) ≤2ppm Conformed
Residue of Pesticide Negative Negative
Total Plate Count ≤1000cfu/g Conformed
Yeast &Mold ≤100cfu/g Conformed
E.coil Negative Negative
Salmonella Negative Negative


Action:1. Inducing quinone reductase activity, an enzyme that is capable of detoxifying carcinogens.
2. Inhibiting cyclo-oxygenase, a substance that causes the production of prostaglandins that stimulate tumor growth, suppress the immune system and activate carcinogens.
3. Inducing the expression of nitroblue tetazolium reduction activity, a marker of non-specific acid esterase activity and macrophage formation
Storage:Store in cool &dry place. Keep away from strong light and heat.
Shelf life:2 years when properly stored.
Packing:Double plastic bag of foodstuff inside, cardboard drum outside, (25kg/drum).

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