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Latin Name: | Sophora japonica L. |
Plant Source: | flower/seed |
Appearance: | Yellow |
CAS: | 153-18-4 |
Specification | 95%-99% |
Storage | Store in cool & dry place. Keep away from strong light and heat. |
Packing | 1kg/Foil bag, 25kgs/Drum (Two plastic-bags inside with Paper-drums), Or as per customer's requirements.) |
Shelf Life | 3 years under well storage situation. |
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 |
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