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Sell Resveratrol Polygonum Cuspidatum

Posted at: Offers to Sell and Export | Posted on: Tue 13 Oct, 2009 3:03 am |
 
resveratrol polygonum cuspidatum
Products Photos CatalogResveratrol Polygonum Photos Catalog



Latin name: Polygonum Cuspidatum

Part used: Polygonium cuspidatum and grape skin


Product Specification:

50%, 98%, 99% Resveratrol (HPLC)

Product appearance;Fine crystal powder

Color: White

Extract Method: Grain Alcohol

Solubility: Poor solubility in water, soluble in aether, chloroform, ethanol, acetic acid and acetone.

Safety evaluation: innocuous

Storage: stored at dry and cool place and avoids light. The guarantee period is two years.

Packing;25kg/Barrel

What is resveratrol:

Resveratrol (trans-3, 5, 4'-trihydroxystilbene), belongs to a class of polyphenolic compounds called stilbenes, found largely in the skins of red grapes and root of Polygonum cuspidatum Sieb. et Zucc ( Japanese knotweed), is a component of Ko-jo-kon, an oriental medicine used to treat diseases of the blood vessels, heart and live.. Resveratrol is a fat-soluble compound that occurs in a trans and a cis configuration (see figure 1). Both cis- and trans-resveratrol also occur as glucosides (bound to a glucose molecule). Resveratrol-3-O-beta-glucoside is also called piceid.

Where does this product apply to?

Cardiovascular Effects

Many studies suggest that consuming alcohol (especially red wine) may reduce the incidence of coronary heart disease (CHD). Several studies have demonstrated that resveratrol is an effective antioxidant. It inhibits lipid peroxidation of low-density lipoprotein (LDL), prevents the cytotoxicity of oxidized LDL, and protects cells against lipid peroxidation. It is thought that because it contains highly hydrophilic and lipophilic properties, it can provide more effective protection than other well-known antioxidants, such as vitamins C and E. On the other hand, it is less effective than the antioxidants quercetin and epicatechin found in red wine. Reduced platelet aggregation has also been demonstrated in studies on resveratrol, further contributing to its prevention of atherosclerosis. To date, most of the research on resveratrol's antioxidant and anti-platelet properties has been done in vitro (in an artificial environment using test-tube or tissue-culture preparations). Further studies in animals and humans are necessary to determine whether resveratrol supplementation makes sense.

Cancer-Related Effects

Resveratrol is being studied to see how it affects the initiation, promotion, and progression of cancer. With regard to tumor initiation, it has been shown to act as an antioxidant by inhibiting free radical formation, and as an anti-mutagen in rat models. Resveratrol appears to decrease tumor promotion activity by inhibiting cyclooxygenase-1 (COX-1), an enzyme that converts arachidonic acid to pro-inflammatory substances that stimulate tumor-cell growth . Studies related to progression have found that resveratrol induced human promyelocytic leukemia cell differentiation and inhibited ribonucleotide reductase, an enzyme needed for DNA synthesis in proliferating cells . One appealing characteristic of resveratrol's anti-cancer potential is its minimal toxicity to blood-forming cells . More studies using both cellular and animal models are needed before any such data would be applicable to human use.

The similarity in structure between resveratrol and diethylstilbestrol (a synthetic estrogen) has prompted investigations into resveratrol's potential as a phytoestrogen (a plant compound that produces estrogen-like effects). However, these properties also stimulate the growth of human breast cancer cells . This finding seems contrary to its other anticancer activities, and is a cause for concern.

The Natural Products Association was cited in an article regarding a new dietary supplement that contains resveratrol, a substance researchers believe may help protect human cells from diseases such as cancer and arthritis.

Otherwise we can process for you, and can produce products according to your request. Welcome to contact me.



Company Contact:

No member photo
Contact Name: Marina Huang
Company Name: Zhejiang Orient Tea Development Co., Ltd
Email: Email
Tel: 8615158298820 or 86-0575-85622373
Fax: 8657585622358
Street Address: Binzhong Road,
Binhai Industrial Zone, Shaoxing
County, Zhejiang, P.R.China
Website: http://www.orient-tea.com
Member name: OrientTea
Country: China-CN China
Member Since: 29 July 2009
Total Leads: 23 OrientTea Import Export Business Leads
Business focus: Instant Tea, Tea Polyphenols, Tea Saponins, Camellia Oil
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