| Customization: | Available |
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| Certification: | USDA Organic/EU Organic/ISO/Kosher/Halal/FDA |
| Assay Method: | HPLC, UV |
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Quercetin is extracted from the Sophora flavescens Ait. Quercetin is a potent antioxidant and has anti-inflammatory activity, protecting cellular structures and blood vessels from the damaging effects of free radicals. It improves blood vessel strength. Quercetin inhibits the activity of catechol-O-methyltransferase that breaks down the neurotransmitter norepinephrine. This effect may lead to elevated levels of norepinephrine and an increase in energy expenditure and fat oxidation. It also means quercetin acts as an antihistamine leading to relief of allergies and asthma. As an antioxidant, it reduces LDL cholesterol and offers protection from heart disease. Quercetin blocks an enzyme that leads to accumulation of sorbitol, which has been linked to nerve, eye, and kidney damage in diabetics.
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Items |
Standards |
Results |
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Physical Analysis |
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Description |
Yellow Fine Powder | Complies |
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Assay |
Quercetin 95% (HPLC) | 95.26% |
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Mesh Size |
100 % pass 80 mesh | Complies |
| Ash | ≤ 5.0% | 2.85% |
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Loss on Drying |
≤ 5.0% |
2.82% |
| Chemical Analysis | ||
| Heavy Metal | ≤ 10.0 mg/kg | Complies |
| Pb | ≤ 2.0 mg/kg | Complies |
| As | ≤ 1.0 mg/kg | Complies |
| Hg | ≤ 0.1 mg/kg | Complies |
| Microbiological Analysis | ||
| Residue of Pesticide | Negative | Negative |
| Total Plate Count | ≤ 1000cfu/g | Complies |
| Yeast&Mold | ≤ 100cfu/g | Complies |
| E.coil | Negative | Negative |
| Salmonella | Negative |
Negative |
1. Expel phlegm and arrest coughing, it can also be used as anti-asthmatic;
2. Quercetin has anticancer activity, inhibits PI3kinase activity and slightly inhibits PIP Kinase activity; reduces cancer cell growth via type II estrogen receptors
3. Inhibit histamine release from basophils and mast cells;
4. Control the spread of certain viruses within the body;
5. Quercetin may also be beneficial in the treatment of dysentery, gout, and psoriasis.1. Applied in pharmaceutical industry: Some medicine with bromelain like throat tablet can diminish inflammation, facilitate digestion and improve immunological competence.So it can be applied in examination, treatment of gynecopathy, glaucoma and inset bitten.
2. Applied in food industry: It can be applied in hydrolyzing protein of plants and animals, so it can be used in the meat tenderizer,wine clarifier,stabilizer of noodle,health foods and soy sauce brewing etc. It can also improve the nutritional value.
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