Giant Knotweed Extract Polydatin

Payment Terms: T/T,L/C
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Basic Info.
  • Brand Name: HERB 
  • Place of Origin: Shaanxi  
  • Means of Transport: Ocean, Air, Land
Supply Capacity
  • Production Capacity: 20tons/month
  • Packing:25kgs/drum
  • Delivery Date: Prompt

Product Description:

Product name:         Polydatin(Giant Knotweed Extract)

Extracted part:       Leaf

Chemical name:        3,4'-5-Trihydroxystilbene-3-beta-D-glucopyranoside

Main ingredients:     Polygonum cuspidatum

Appearance:           White crystalline powder

CAS NO.:              65914-17-2

Specification:        8%, 98%

Molecular Formula:    C20H22O8

Molecular Weight:    390.38

Melting Point:       223-226 °C(lit.) Boiling point: 707.7 °C at 760 mmHg

Flash Point:         381.8 °C

Solubility:          Easily soluble in ether,chlorofrom, methanol,ethanol,acetone etc.

Storage:             Stored in a cool and dry well-closed container,the temperature should be lower than 25C, the relative humidity should not exceed 50%.

Shelf life:          2 years when properly stored.

Packing:             Cardboard drum (25kg/drum), double plastic bag of foodstuff inside.



- Polydatin can used to anticancer;

- Polydatin has effect on cardiovascular system;

- Polydatin own the nourishing and protecting liver;

- Polydatin has the useage of antibacterial and antifungal;

- Polydatin has impact on the metabolism of osseous issue;

- Polydatin own the effective of ntioxidant and quench free-radicals.


Applications:Pharmaceuticals, healthcares,and cosmetics.



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.

Giant knotweed 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. Myocardial cell, white blood cell, vascular smooth muscle cell, and endothelial cell studies report that polydatin can inhibit ICAM-1 expression, elevate Ca2+, weaken white blood cell-endothelial cell adhesion, and activate KATP channels.


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Xi'an Tianxingjian Natural Bio-product CO.,LTD.
NO.5RONGXING RD, Xi'an, Shaanxi, China (Mainland)
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