Giant Knotweed Resveratrol 98%

Polygonum cuspidatum Zucc. 10%–98% Resveratrol; 50%–98% Emodin; 20%-99% Polydatin;Acetyl-resveratrol 98% (HPLC)
Product No: 501-36-0 Category: Tags: , ,

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Giant Knotweed Resveratrol is naturally occurring phytoalexin produced by some higher plants in response to injury or fungal in fection. Phytoalexins are chemical substances produced by plants as a defense against in faction 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 resveratrol intake is associated with a reduced incidence of cardiovascular disease, and a reduced risk for cancer.

Resveratrol is extracted from Polygonium cuspidatum and grape skin, its rich with Both cis-resveratrol and trans-resveratrol.


Product Name Giant Knotweed Extract
Botanical Name Polygonum Cuspidatum Sieb. et Zucc.
Test Method HPLC
Used Part Root
Appearance White powder
Odor &Taste Characteristic
Active Ingredient Resveratrol, Polydatin, Emodin
Resveratrol CAS NO. 501-36-0
Molecular Formula C14H12O3
Molecular Weight 228.24
Structure Giant-Knotweed-Resveratrol-501-36-0
Polydatin CAS NO. 65914-17-2
Molecular Formula C20H22O8
Molecular Weight 390.38
Structure Giant Knotweed Extract Polydatin 65914-17-2
CAS NO. 501-36-0
Molecular Formula C14H12O3
Molecular Weight 228.24

Series No









10% Resveratrol
20% Resveratrol
2 50% Resveratrol
3 98% Resveratrol
4 Polydatin 98% Polydatin
5 Emodin 98% Emodin

Giant knotweed resveratrol-501-36-0-Polygonum Cuspidatum Extract powderPhysical Characteristics
Sieve Analysis NLT 100% pass 80 mesh
Loss on Drying ≤4.0%
Ash Content ≤2.0%
Residual Solvents
Ethanol ≤5000ppm
Total Heavy Metals ≤20ppm
Pesticide Residues ≤10ppb
Microbiological Assay
Total Plate Count 1000cfu/g
Total Yeast & Mold 100cfu/g
E.Coli Negative
Salmonella Negative
Staphylococcus Negative



The function of Giant Knotweed Resveratrol used to?

Effect on cardiovascular system
Antibacterial and antifungal
Nourish and protect liver
Antioxidant and quench free-radicals
Impact on the metabolism of osseous issue

Application of Giant Knotweed Resveratrol:

Applied in food field, it’s used as the food additive with the function of lengthening life.
Applied in pharmaceutical field, it is frequently used as medicine supplement or OTCs ingredients and owns good efficacy for treatment of cancer and cardio-cerebrovascular disease.
Applied in cosmetics, it can delay aging and prevent UV radiation.

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