Where to buy quercetin with low price and high quality. We are your best choice, all informations about quercetin are available.
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Product Name: quercetin
quercetin source: quercetin is a bioflavonoid common in the plant kingdom, especially high in onions, red wine, and green tea.
quercetin introduction: It is one of the most biologically active bioflavonoids. quercetin acts as a potent polyphenol antioxidant and immune system modulator.Many of its immune support attributes are enhanced by its synergistic relationship with vitamin C. quercetin is highly active in the skin and lining of the digestive tract .
Appearance: Yellow Sophora Japonica Extract powder
Active ingredient: quercetin
Test By:HPLC
quercetin specifications: quercetin Dihydrate 98% UV/95%HPLC
Molecular formula: C15H10O7
Structural formula:
quercetin Main benefits:
1. quercetin may expel phlegm and arrest coughing, it can also be used as anti-asthmatic.
2. quercetin has anticancer activity, inhibits PI3-kinase activity and slightly inhibits PIP Kinase activity, reduces cancer cell growth via type II estrogen receptors.
3. quercetin may inhibit histamine release from basophils and mast cells.
4. quercetin may control the spread of certain viruses within the body.
5. quercetin may help reduce tissue destruction.
6. quercetin may also be beneficial in the treatment of dysentery, gout, and psoriasis
quercetin specification
|
Item |
Specification |
Result |
Method |
|
Maker Compounds |
NLT98% Artermisinin |
98.6% |
UV |
|
Organoleptic |
|
|
|
|
Appearance |
Yellow crystalline |
Conforms |
Visual |
|
Part Used |
Whole herb |
Conforms |
|
|
Color |
White |
Conforms |
Visual |
|
Taste |
Characteristic |
Conforms |
Organoleptic |
|
Odor |
Characteristic |
Conforms |
Organoleptic |
|
quercetin Heavy metals |
|||
|
Lead |
≤2ppm |
Conforms |
GB/T5009.12-1996 |
|
Total Heavy Metals |
≤20ppm |
Conforms |
CP2000 |
|
Arsenic |
≤2ppm |
Conforms |
GB/T5009.11-1996 |
|
quercetin Physical Charactristics |
|||
|
Melting point |
305-315℃ |
313℃ |
|
|
Sulphated ash |
≤0.3% |
0.21% |
|
|
Ash content |
≤12% |
6.21% |
AOAC942.05,17th |
|
quercetin Microbiological Tests |
|||
|
E.Coli |
Negative |
Negative |
AOAC975.55,16 th |
|
Total Yeast & Mold |
≤100cfu/g |
15cfu/g |
FDA(BAM)Chapter18.8th Ed |
|
Staphylococcus |
Negative |
Negative |
AOAC |
|
Salmonella |
Negative |
Negative |
FDA(BAM)Chapter5.8 th Ed |
|
Total Plate Count |
≤1000cfu/g |
190cfu/g |
AOAC990.12,16 th |
|
quercetin Pesticide Residue |
|||
|
666 |
<0.2ppm |
Conforms |
GB/T5009.19-1996 |
|
DDT |
<0.2ppm |
Conforms |
GB/T5009.19-1996 |
