Polygonum Cuspidatum Root Extract (Resveratrol 98%)
Città: LV, Marupe
Physical & Chemical Characteristics
Analysis Item | Specification | Result |
Appearance | Off white to white powder | Complies |
Odor | Characteristic | Complies |
Taste | Characteristic | Complies |
Loss on drying | ≤2.0% | 0.88% |
Ash | ≤1.0% | 0.19% |
Loose density | 0.200–0.700 g/ml | Complies |
Tapped density | 0.300–0.800 g/ml | Complies |
Particle size | 100% pass 80 mesh | Complies |
Chemical Tests
Analysis Item | Specification | Result |
Heavy metals (total) | ≤10 ppm | Complies |
Arsenic (As) | ≤2 ppm | Complies |
Lead (Pb) | ≤2 ppm | Complies |
Cadmium (Cd) | ≤0.5 ppm | Complies |
Mercury (Hg) | ≤0.1 ppm | Complies |
Solvent residual | ≤1500 ppm | Complies |
Benzo(a)pyrene | ≤10 ppb | Complies |
Sum of PAHs (PAH4) | ≤50 ppb | Complies |
Assay: Resveratrol | ≥98.0% (HPLC) | 98.67% |
Microbiological Tests
Analysis Item | Specification | Result |
Total plate count | ≤1000 CFU/g | <10 CFU/g |
Yeast & mould | ≤100 CFU/g | <10 CFU/g |
Coliforms | ≤0.92 MPN/g | Negative |
Salmonella | Negative | Negative |
Packaging & Storage
Analysis Item | Specification |
Packing | Paper-drums with two food grade poly bags inside; Net: 25 kg/drum |
Storage condition | Sealed, kept in a shady & dry place |
Shelf life | Three years when properly stored |