≥1 piece |
In a recent investigation conducted in vivo and in vitro, resveratrol displayed chemopreventive effects at three critical stages of carcinogenesis. Specifically, resveratrol was found to 1) induce phase II drug metabolizing Enzymes (antiinitiation); 2) mediate anti-inflammatory effects and inhibit cyclooxygenase and hydro-peroxidase (antipromotion); And 3) induce human promyelocytic leukemia cell diferentiation (antiprogression). Resveratrol was also found to inhibit the development of preneoplastic lesions in vitro and tumorigenesis in vivo. Very recently, it was reported that Huzhang extract is one of the best active-oxygen scavengers for the prevention of skin aging induced by UV-irradiation and free radical. Experiments conducted in vivo indicate that resveratrol is a potent vasodilator and inhibitor of platelet aggregation.
Item | Specification | Result | Method |
Maker Compounds | Resveratrol≥98.0% | 98.30% | HPLC |
Organoleptic | |||
Appearance | Amorphous powder | Conforms | Visual |
Color | White | Conforms | Visual |
Odor | Characteristic | Conforms | Organoleptic |
Taste | Characteristic | Conforms | Organoleptic |
Method of Extraction | Hydro-alcoholic | Conforms | |
Extract Solvent | Ethanol & Water | Conforms | |
Drying Method | Spray drying | Conforms | |
Physical Characteristics | |||
Particle Size | NLT100%Through 80 mesh | Conforms | |
Loss on Drying | ≤5.0% | 0.18% | CP2005Appendix IX G |
Ash content | ≤5.0% | 0.09% | CP2005Appendix IX K |
Bulk Density | 40-60g/100ml | 48 g/100ml | |
Heavy metals | |||
Total Heavy Metals | ≤10ppm | Conforms | Atomic Absorption |
Arsenic | ≤2ppm | 1.2ppm | Atomic Absorption |
Pb | ≤2ppm | 0.9ppm | Atomic Absorption |
Cl | ≤1ppm | 0.8ppm | Atomic Absorption |
Pesticide Residues | ≤1ppm | Conforms | Gas Chromatography |
Microbiological Tests | |||
Total Plate Count | ≤1000cfu/g | 252cfu/g | AOAC |
Total yeast & Mold | ≤100cfu/g | 18cfu/g | AOAC |
E.Coli | Negative | Negative | AOAC |
Salmonella | Negative | Negative | AOAC |
Staphylococcus |
Negative Negative AOAC |
Negative | AOAC |
Expiration Date | 2 Years When Stored properly | ||
Packing and Storage | Inside: double-deck plastic bag. outside: Neutral cardboard barre& Leave in the shady and cool dry place. |