| Certification: | ISO, HACCP, SGS/Kosher/Halal |
|---|---|
| Assay Method: | HPLC, UV, Tlc |
| Application Form: | Tablet, Capsule, Powder |
| Application: | Food, Health Care Products, Medicine, Cosmetic |
| State: | Powder |
| Extract Source: | Sophora Japonica |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier | Latin Name: | Sophora japonica L. |
| Plant Source: | flower/seed |
| Appearance: | Yellow |
| CAS: | 153-18-4 |
| Specification | 95%-99% |
| Item | Specification | Results | Methods |
| Marker Compound | Quercetin 95% | 95.05% | UV |
| Appearance & Color | Yellow powder | Conform | GB5492-85 |
| Odor & Taste | Characteristic | Conform | GB5492-85 |
| Plant Part Used | Flower | Conform | |
| Extract Solvent | Ethanol/Water | Conform | |
| Bulk Density | 0.4-0.6g/ml | 0.40-0.50g/ml | |
| Mesh Size | 80 | 100% | GB5507-85 |
| Loss on Drying | ≤5.0% | 3.56% | GB5009.3 |
| Ash Content | ≤5.0% | 0.86% | GB5009.4 |
| Solvent Residue | Negative | Conform | GC |
| Pesticides | EC NO:396/2005 | Conform | GC |
| PAH4 | ≤50ppb | Conform | GC-MS |
| Benzo(a)pyrene | ≤10ppb | Conform | GC-MS |
| Benz(a)anthracene | ≤10ppb | Conform | GC-MS |
| Benzo(b)fluoranthene | ≤10ppb | Conform | GC-MS |
| Chrysene | ≤10ppb | Conform | GC-MS |
| Heavy Metals | |||
| Total Heavy Metals | ≤10ppm | <3.0ppm | AAS |
| Arsenic (As) | ≤1.0ppm | <0.1ppm | AAS(GB/T5009.11) |
| Lead (Pb) | ≤1.0ppm | <0.5ppm | AAS(GB5009.12) |
| Cadmium | <1.0ppm | Not Detected | AAS(GB/T5009.15) |
| Mercury | ≤0.1ppm | Not Detected | AAS(GB/T5009.17) |
| Microbiology | |||
| Total Plate Count | ≤1000cfu/g | <100 | GB4789.2 |
| Total Yeast & Mold | ≤25cfu/g | <10 | GB4789.15 |
| E. Coli | ≤40MPN/100g | Not Detected | GB/T4789.3-2003 |
| Salmonella | Negative in 25g | Not Detected | GB4789.4 |
| Staphylococcus | Negative in 10g | Not Detected | GB4789.1 |
| Packing and Storage | 25kg/drum Inside: Double-deck plastic bag, outside: Neutral cardboard barrel & Leave in the shady and cool dry place | ||
| Shelf Life | 3 Year When Stored properly | ||
| Expiration Date | 3 Years | ||
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, reducescancer 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.
5. Quercetin may also be beneficial in the treatment of dysentery, gout, and psoriasis
Suppliers with verified business licenses
Audited Supplier 
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