polygonum cuspidatum extract,Resveratrol

Model:	PS-PCE
Brand:	purestar
Origin:	Made In China
Category:	Chemicals / Food Additives
Label:	Trans- Resveratrol , Resveratrol , Giant Knotweed Extra
Price:	US $300 / kg
Min. Order:	1 kg

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Product Description

Resveratrol

Specification:

Name:Resveratrol

CAS#: 501-36-0

Molecular formula: C14H12O3

Molecular weight: 228.24

Specification:50% 98% 99%

Polygonum Cuspidatum Extract

Brown Yellow to White Powder

quality contral

Item		Specification(%)	Result(%)
Appearance Colour		White powder	Conforms
Resveratrol %		≥98%	98.53%
Lost on drying %		<1.0% Max	0.7%
Mesh size		100% pass 80 mesh	Conforms
Solubility		Good solubility in alcohol	Good solubility in alcohol
Heavy metal		≤20.00mg/Kg	Conforms
(Pb)		≤5.00 mg/Kg	Conforms
(As)		≤2.00 mg/Kg	Conforms
(Cd)		≤0.30 mg/Kg	Conforms
(Hg)		≤0.20 mg/Kg	Conforms
(Cu)		≤20.00 mg/Kg	Conforms
Ash Content %		≤0.50%	0.21%
Total Bacteria		≤1000cfu/g	Conforms
Yeast Mold		≤100cfu/g	Conforms
Salmonella		Negative	Negative
E.Coli		Negative	Negative
B1(Aflatoxin)		≤5.00ug/Kg	Conforms
Solvent residences		≤0.05%	Conforms
pesticide residue	BHC	≤0.10mg/Kg	Conforms
	DDT	≤0.10 mg/Kg	Conforms
	PCNB	≤0.10 mg/Kg	Conforms
	Aldrin	≤0.02 mg/Kg	Conforms
Identification		HPLC/UV-VIS/GC
Conclusion		Conforms

Function and Usage:

Resveratrol interferes with all three stages of carcinogenesis initiation, promotion and progression. Experiments in cell cultures of varied types and isolated subcellular systems in vitro imply many mechanisms in the pharmacological activity of resveratrol. In some lineages of cancer cell culture, resveratrol has been shown to induce apoptosis, which means it kills cells and may kill cancer cells.Resveratrol has been shown to induce Fas/Fas ligand mediated. Resveratrol also possesses antioxidant and anti-angiogenic properties.