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Product Name: quercetin powder
quercetin powder source: quercetin is a plant pigment (flavonoid). It is found in many plants and foods, such as red wine, onions, green tea, apples, berries, Ginkgo biloba, St. John's wort, American elder, and Others. Buckwheat tea has a large amount of quercetin. People use quercetin as a medicine.
quercetin powder introduction: quercetin may expel phlegm and arrest oughing, it can also be used as antiasthmatic. quercetin has anticancer activity, inhibits PI3-kinase activity and slightly inhibits PIP Kinase activity, reduces cancer cell growth via type II estrogen receptors. quercetin may inhibit histamine release from basophils and mast cells.quercetin may control the spread of certain viruses within the body. quercetin may help reduce tissue destruction. quercetin may also be beneficial in the treatment of dysentery, gout, and psoriasis.
Appearance: Light Yellow Crystalline Powder
Active ingredient: quercetin
Test By:HPLC
quercetin powder specifications: quercetin 95% HPLC, 98% UV
Molecular weight: 302.24
Structural formula:
quercetin powder Main benefits:
1. Improving blood capillary elastic, Anti-inflammatory
2. Antioxidation and anti-cancer, especially prostatic cancer
3. Preventing vascular disease
4. Maintain vascular resistance
quercetin powder specification
|
Item |
Specification |
Result |
Method |
|
Maker Compounds |
NLT98% Artermisinin |
98.6% |
UV |
|
Organoleptic |
|
|
|
|
Odor |
Characteristic |
Conforms |
Organoleptic |
|
Taste |
Characteristic |
Conforms |
Organoleptic |
|
Part Used |
Whole herb |
Conforms |
|
|
Color |
White |
Conforms |
Visual |
|
Appearance |
Yellow crystalline |
Conforms |
Visual |
|
quercetin powder Pesticide Residue |
|||
|
DDT |
<0.2ppm |
Conforms |
GB/T5009.19-1996 |
|
666 |
<0.2ppm |
Conforms |
GB/T5009.19-1996 |
|
quercetin powder Physical Charactristics |
|||
|
Sulphated ash |
≤0.3% |
0.21% |
|
|
Ash content |
≤12% |
6.21% |
AOAC942.05,17th |
|
Melting point |
305-315℃ |
313℃ |
|
|
quercetin powder Heavy metals |
|||
|
Total Heavy Metals |
≤20ppm |
Conforms |
CP2000 |
|
Lead |
≤2ppm |
Conforms |
GB/T5009.12-1996 |
|
Arsenic |
≤2ppm |
Conforms |
GB/T5009.11-1996 |
|
quercetin powder Microbiological Tests |
|||
|
Total Plate Count |
≤1000cfu/g |
190cfu/g |
AOAC990.12,16 th |
|
Salmonella |
Negative |
Negative |
FDA(BAM)Chapter5.8 th Ed |
|
Staphylococcus |
Negative |
Negative |
AOAC |
|
E.Coli |
Negative |
Negative |
AOAC975.55,16 th |
|
Total Yeast & Mold |
≤100cfu/g |
15cfu/g |
FDA(BAM)Chapter18.8th Ed |
