High Purity Organic Milk Thistle Seed Extract
Certificate of Analysis
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General Info |
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Product Name |
Milk Thistle Extract |
Used Part |
Seed |
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Latin name |
Silybum marianum (L.) Gaertn. |
Quantity |
1000 kg |
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Batch No. |
CRSL230909 |
Report Date |
2023-09-10 |
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Manufacturing Date |
2023-09-09 |
Expiry Date |
2025-09-08 |
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Items |
Standards |
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Results |
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Physical Analysis |
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Appearance |
Yellow or brown yellow amorphous powder |
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Conforms |
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Odor |
Characteristic |
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Conforms |
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Mesh Size |
60 mesh |
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Conforms |
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Solubility |
Practically insoluble in water, and soluble in methanol and acetone |
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General Analysis |
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Identification |
The retention time of peak-peak which shows in the chromatogram of the solution should conform to that of Standard solution. |
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Conforms |
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Assay by UV |
≥80% |
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83.1% |
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Assay by HPLC |
Silymarin calculated as dried Silybin 40% ~80% |
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41.5% |
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Silydianin & Silychristin/ Silymarin 20% ~45% |
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27.8% |
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Silybin A & Silybin B/ Silymarin 40% ~65% |
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59.9% |
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Isosilybin A & Isosilybin B/ Silymarin 10% ~20% |
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12.3% |
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Extract Solvents |
Acetone |
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Conforms |
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Loss on Drying (g/100g) |
≤5.0% |
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1.3% |
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Ignition Residue (g/100g) |
≤0.5% |
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0.2% |
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Chemical Analysis |
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Residual Solvent |
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Hexane |
≤290ppm |
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9 |
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Acetone |
≤5000ppm |
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1446 |
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Ethyl Acetate |
≤5000ppm |
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0 |
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Methanol |
≤3000ppm |
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38 |
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Ethanol |
≤5000ppm |
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23 |
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Lead(Pb) |
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<0.5 ppm |
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Arsenic(As) |
<2.0 ppm |
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<0.5 ppm |
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Cadmium(Cd) |
<1.0 ppm |
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Mercury(Hg) |
<0.1 ppm |
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<0.1 ppm |
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Microbiological Analysis |
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Total Plate Count(cfu/g) |
≤1,000 |
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90 |
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≤100 |
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20 |
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Escherichia coli (cfu/g) |
Negative |
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Conforms |
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Shelf Life |
24 months under the conditions below, no antioxidant used |
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Package |
25 kg/drum outside and double food plastic bags inside. |
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Storage |
Store in a cool, dry place away from Moisture, Light, Oxygen |
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Standard |
Enterprise Standard STP QC 0147 (According to EP7.0) |
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