| Customization: | Available |
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| Certification: | ISO, FDA |
| Assay Method: | HPLC-MS, GPC, HPLC, UV |
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Description:
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. Some people use quercetin as a medicine.
Quercetin may help protect against heart disease and cancer. Quercetin can also help stabilize the cells that release histamine in the body and thereby have an anti-inflammatory and antihistamine effect.
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Product Name
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Quercetin
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Item of Test
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Limits of Test
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Results of Test
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Appearance
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Yellow green powder
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Yellow green powder
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Assay by HPLC
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≥98%
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98.63%
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Particle size
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95% pass 80 mesh
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Conforms
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Melting point
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305ºC-315ºC
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312ºC
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Bulk density
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≥0.20gm/cc
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0.23gm/cc
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Tapped Density
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≥0.30gm/cc
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0.36gm/cc
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As
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≤1.0ppm
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Conforms
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Pb
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<1.0ppm
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Conforms
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Cr
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<1.0ppm
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Conforms
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Hg
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<0.05ppm
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Conforms
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Loss on drying
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≤3%
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1.06%
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Total Plate Count
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<1000cfu/g
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Conforms
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Yeast & Mold
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<100cfu/g
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Conforms
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E. Coli
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Negative
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Conforms
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S. Aureus
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Negative
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Conforms
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Saimonella
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Negative
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Conforms
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Pesticides
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Negative
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Conforms
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Conclusion
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Conform with specification
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Storage
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Store in 2-8°C, cool & dry place, Keep away from strong light and heat.
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