St.John’s Wort Extract,Hypericin
Hypericum perforatum, known as perforate St John’s- wort, common Saint John’s wort and St John’s wort, is a flowering plant in the family Hypericaceae.
Typical COA: Specification UV0.3%
|
Analysis |
Specification |
Method |
|
Assay(Hypericins) |
≥0.30% |
UV |
|
Appearance |
Dark brown to black Powder |
Visual |
|
Odor |
Characteristic |
Organoleptic |
|
Taste |
Characteristic |
Organoleptic |
|
Sieve Size |
90% pass 80 mesh |
Complies |
|
Loss on drying |
≤5.0% |
CP2015 |
|
Total ashes |
≤15.0% |
CP2015 |
|
Heavy Metals: |
||
|
Total |
≤20ppm |
CP2015 |
|
Microbiological Control |
||
|
Total Plate Count |
NMT1000cfu/g |
CP2015 |
|
Yeast & Mold |
NMT100cfu/g |
CP2015 |
|
E.Coli |
Negative |
CP2015 |
|
Packing and Storage |
|
|
Packing |
25kgs/drum. Packing in paper-drums and two plastic-bags inside. |
|
Storage |
Store in a well-closed container away from moisture, sun light, or heat. |
|
Shelf Life |
2 years. |
Typical COA: SpecificationHPLC0.3% (USP/EP)
| Analysis | Specification | Method |
| Assay(Hypericins) | ≥0.3% | HPLC-USP |
| Hypericins | ≥0.5% | UV |
| Appearance | Yellow to brown Powder | Visual |
| Identification | Correspond to standard | TLC || USP<201> |
| Odor | Characteristic | Organoleptic |
| Taste | Characteristic | Organoleptic |
| Sieve Size | 90% pass 80 mesh | Analytical sieving || USP <786> |
| Loss on drying | NMT 5.00% | USP <731> |
| Total Ash | NMT15.00% | USP <561> |
| Bulk Density | Between 30-65g/100ml | USP <616> Method I |
| Solvent Residues | Ethanol≤2000ppm | USP <467> |
| Heavy Metals: | ||
| Total | ≤10ppm | USP <231> Method II |
| Lead (Pb) | ≤2ppm | ICP-MS |
| Cadmium(Cd) | ≤1ppm | ICP-MS |
| Mercury(Hg) | ≤0.5ppm | ICP-MS |
| Arsenic (As) | ≤1ppm | ICP-MS |
|
Packing and Storage |
|
|
Packing |
25kgs/drum. Packing in paper-drums and two plastic-bags inside. |
|
Storage |
Store in a well-closed container away from moisture, sun light, or heat. |
|
Shelf Life |
2 years. |










