Product name: Quercetin
Specification: Quercetin Dihydrate powder or granular 85%~98%, Quercetin Anhydrous powder or granular 85%~98%
CAS NO.: 117-39-5 (Quercetin)
CAS NO.: 6151-25-3 (Quercetin Dihydrate)
Other names: 5,7,3′,4′-flavon-3-ol, Sophoretin, Meletin, Quercetine, Xanthaurine, Quercetol, Quercitin, Quertine, Flavin meletin
Extracted from: Rutin (Bud of Sophora Japonica L.)
Quercetin is widely found in the stem skin, flowers, leaves, buds, seeds and fruits of many plants, mostly in the form of glycosides, such as rutin, quercetin, hypericin, etc. Quercetin can be obtained by acid hydrolysis. Among them, in the buckwheat rod and leaves, sea buckthorn, hawthorn, onion content is higher. Quercetin is also found in many foods, including Onions, shallots, asparagus, cabbage, mustard greens, green peppers, chicory, grapefruit, lettuce, hawthorn, apples, mangoes, plums, radishes, blackcurrants, potatoes, and spinach. In addition, about 100 kinds of medicinal plants (such as sophora rice, platycypress leaves, galangal, coltsfoot, mulberry parasitic, panax notoginseng, ginkgo biloba, elderberry, etc.) contain this ingredient.
Specification Sheet:
| Product Name: |
Quercetin Dihydrate Powder |
Latin Name: |
Sophora Japonica L |
| Plant Used: |
Bud |
Country of Origin: |
China |
| ITEM |
SPECIFICATION |
RESULT |
| Appearance |
Yellow Powder |
Complies |
| Identification |
Must positive |
Positive |
| Loss on drying |
≤12.0% |
10.77% |
| Ash |
≤1.0% |
0.55% |
| Bulk density |
/ |
0.20g/ml |
| Tapped density |
/ |
0.31g/ml |
| Mesh size |
95%pass 80 mesh |
Complies |
| Heavy metals |
≤10ppm |
Complies |
| Arsenic(As) |
≤1ppm |
Complies |
| Lead(Pb) |
≤1ppm |
Complies |
| Cadmium(Cd) |
≤1ppm |
Complies |
| Mercury(Hg) |
≤0.5ppm |
Complies |
| Pesticide residue |
USP<561> |
Complies |
| Solvent residue |
≤5000ppm |
Complies |
| Quercetin Dihydrate (Dry basis) |
≥95.0% |
95.10% |
| Total Plate Count |
≤10000CFU/g |
<10CFU/g |
| Yeast &Mould |
≤1000CFU/g |
<10CFU/g |
| Escherichia Coli |
Negative |
Negative |
| Staphylococcus Aureus |
Negative |
Negative |
| Salmonella |
Negative |
Negative |
| Packing |
Pack in paper-drums and two food grade poly bags inside. Net weight: 25kg/drum |
| Storage condition |
Store in a well closed place with constant low temperature and no direct sun light |
| Shelf life |
Three years when properly stored |
Function:
1, Quercetin has good expectorant, cough, asthma, but also has a wide range of anti-fibrosis effect, long-term used in the treatment of chronic bronchitis;
2. Quercetin has antioxidant functions, such as preventing lipid oxidation, reducing glutathione consumption, improving antioxidant enzyme activity, and inhibiting lipid peroxidation to protect liver cells against alcohol oxidative damage. The protective effect shows a dose-time effect relationship;
3. Quercetin has anti-inflammatory effects, which can reduce the body's immune response to allergens, inhibit IgE mediated release from mast cells and IgG mediated release of histamine;
4, Quercetin has antibacterial effect, has a broad spectrum antibacterial activity, and the antibacterial effect on gram-negative bacteria is stronger than Gram-positive bacteria;
5. Quercetin can enhance skin color and protect skin;
6, Quercetin has the role of cardiovascular protection, can dilate blood vessels, reduce blood pressure, prevention and treatment of coronary heart disease, reduce myocardial hypertrophy, inhibit vascular smooth muscle cell hypertrophy, and anti-thrombus formation;
7, Quercetin has anticancer effect, has a good inhibitory effect on a variety of malignant tumors.
Application:
1. It can be used as a kind of antioxidant which is mainly used for oil, drinks, cold drinks, meat processing products.
2. It has good effects of expectorant, anti-cough, anti-asthma and can be used for treating chronic bronchitis as well as for adjuvant therapy of coronary heart disease and high blood pressure.
3. It can also be used as analytical standards
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