80% Silymarin & Milk Thistle Extract
As the extract solvent, Acetone is used primitively to extract Silymarin since their introduction to China in 20th century. Compare to the Silymarin extracted by Ethanol and the Silymarin extracted by Ethyl Acetate, the price for the Silymarin extracted by Acetone is the cheapest, and the consuming of this specification is the biggest in the whole world. But because Acetone has some toxicity, it is un healthful, so in the future, it will be replaced by the Ethanol or the Ethyl Acetate gradually.
| Specifications for 80% Silymarin & Milk Thistle Extract |
| Product Name | 80% Silymarin & Milk Thistle Extract |
| Appearance | Yellow to yellowish-Brown powder |
| Odour | Slight, specific |
| Plant Part to be Used | Seeds |
| Assay(UV/HPLC) | UV80%, Silybin+Isosilybin |
| Solubility in Water | Practically Insoluble |
| Solubility in Methanol and Ethanol | Soluble |
| Powder size | 80mesh, NLT90% |
| Loss on Drying | ≤4.0% |
| Total Ash | ≤0.5% |
| Heavy Metal | |
| Silybin A & Silybin B | 40%~65% |
| IsosilybinA & IsosilybinB | 10%~20% |
| Silydianin & Silychristin | 20%~45% |
| Residual Solvent AcetoneN-Hexane | |
| Total Plate Count | |
| Yeast & Mold | |
| E.Coil | Negative |
| Salmonella | Negative |
| Storage | Store in cool & dry place. Avoid Direct Sunshine. |