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Product Name: quercetin
quercetin source:quercetin is a flavonoid widely distributed in nature. The name has been used since 1857, and is derived from quercetum (oak forest), after Quercus.
quercetin introduction: quercetin, also known as quercetin, it PiHuang element , Soluble in glacial acetic acid , Alkaline solution is yellow, almost insoluble in water , ethanol solution taste very bitter . Can be used as medicine ,has a good effect of expectorant , cough and smooth wheezing .
Appearance: Yellow to green yellow crystalline powder
Active ingredient: quercetin
Test By:HPLC
quercetin specifications: Sophora Japonica Extract,quercetin 95%-98%
Structural formula:
quercetin Main benefits:
1. It has good expectorant, cough effect, and some asthma, for the treatment of chronic bronchitis.
2. It can lower blood pressure, fragility, blood fat, expanse coronary artery, and increase capillary resistance coronary blood flow, and Other effects on the coronary heart disease and hypertension role of adjuvant therapy.
3. It can beanti-tumor and anti-platelet aggregation.
4. It can inhibit platelet aggregatireduce capillaryon and 5 - hydroxytryptamine (5-HT) release.
quercetin specification
|
Item |
Specification |
Result |
Method |
|
Maker Compounds |
NLT98% Artermisinin |
98.6% |
UV |
|
Organoleptic |
|
|
|
|
Taste |
Characteristic |
Conforms |
Organoleptic |
|
Odor |
Characteristic |
Conforms |
Organoleptic |
|
Appearance |
Yellow crystalline |
Conforms |
Visual |
|
Color |
White |
Conforms |
Visual |
|
Part Used |
Whole herb |
Conforms |
|
|
quercetin Pesticide Residue |
|||
|
666 |
<0.2ppm |
Conforms |
GB/T5009.19-1996 |
|
DDT |
<0.2ppm |
Conforms |
GB/T5009.19-1996 |
|
quercetin Physical Charactristics |
|||
|
Melting point |
305-315℃ |
313℃ |
|
|
Ash content |
≤12% |
6.21% |
AOAC942.05,17th |
|
Sulphated ash |
≤0.3% |
0.21% |
|
|
quercetin Microbiological Tests |
|||
|
Staphylococcus |
Negative |
Negative |
AOAC |
|
Salmonella |
Negative |
Negative |
FDA(BAM)Chapter5.8 th Ed |
|
Total Plate Count |
≤1000cfu/g |
190cfu/g |
AOAC990.12,16 th |
|
Total Yeast & Mold |
≤100cfu/g |
15cfu/g |
FDA(BAM)Chapter18.8th Ed |
|
E.Coli |
Negative |
Negative |
AOAC975.55,16 th |
|
quercetin Heavy metals |
|||
|
Lead |
≤2ppm |
Conforms |
GB/T5009.12-1996 |
|
Total Heavy Metals |
≤20ppm |
Conforms |
CP2000 |
|
Arsenic |
≤2ppm |
Conforms |
GB/T5009.11-1996 |
