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Ohi Supply Giant Knotweed Extract Resveratrol 98%

Posted at: Offers to Sell and Export | Posted on: Thu 13 Nov, 2008 6:32 am | Product Category: Spices or extracts [3400]
ohi giant knotweed extract resveratrol 98
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Giant Knotweed Extract Resveratrol

Product ID:OHI-000025

Giant Knotweed Extract Resveratrol



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.


In animal experiments, huzhang has exhibited antitussive, antihistaminic, hypotensive, vasodilating, cytotoxic, and antioxidant properties, among others. Huzhang is also a concentrated source of resveratrol (3,5,4-trihydroxy stilbene), an antioxidant phenol produced in response to fungi. Resveratrol has also shown antimutagenic activity in bioassays conducted on bacteria in vitro (umu and Ames tests). And, in a recent investigation conducted in vivo and in vitro, resveratrol displayed chemopreventive effects at three critical stages of carcinogenesis. Specifically, resveratrol was found to 1) induce phase II drug metabolizing enzymes (antiinitiation); 2) mediate anti-inflammatory effects and inhibit cyclooxygenase and hydro-peroxidase (antipromotion); and 3) induce human promyelocytic leukemia cell diferentiation (antiprogression). Resveratrol was also found to inhibit the development of preneoplastic lesions in vitro and tumorigenesis in vivo. Very recently, it was reported that Huzhang extract is one of the best active-oxygen scavengers for the prevention of skin aging induced by UV-irradiation and free radical. Experiments conducted in vivo indicate that resveratrol is a potent vasodilator and inhibitor of platelet aggregation. Recent work in dogs and humans indicate that other concentrated sources of resveratrol (i.e., red wine and grape juice) eliminate cyclic blood-flow reductions caused by platelet-mediated thrombosis.

Active Compounds:

Huzhang is characterized by anthraquinones and their glycosides, napthoquinone, 3,5,4-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.

Company Contact:

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Contact Name: Lily Liu
Company Name: Changsha Organic Herb Inc.
Email: Email
Tel: 86 731 2967872
Fax: 86 731 2967861
Street Address: No.2405dushidongjia,
Mawangdui North Road, Xingsha,
Changsha, China
Website: http://www.organic-herb.com/
Member name: OrganicHerbInc
Country: China-CN China
Member Since: 26 April 2007
Total Leads: 44 OrganicHerbInc Import Export Business Leads
Business focus: Plant Extracts, Resveratrol, Reishi Extract, Grape Seed Extract
Verify: Safe Import Export Tips
Product Category: Spices or extracts [3400]

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