Grape skin extract improves muscle function and extends the lifespan of flies with Parkinson's disease, a study shows.The neuroprotective effect of grape skin extract was due to its potential to rescue mitochondria - cells' powerhouses - from defects caused by the disease.
Besides polyphenols, grape skin and seeds also contain anti-oxidative components, including proanthocyanidine and quarcetin, which may actively contribute to protecting against oxidative stress and mediated tissue injury.
Oxidative stress is an imbalance between the production of free radicals and the ability of cells to detoxify them. These free radicals, or reactive oxygen species, are harmful to the cells and are associated with a number of diseases, including Parkinson's disease.
| ITEMS | SPECIFICATION | METHOD |
| Appearance | Violet to dark violet fine powder | visual |
| Odor | Characteristic | organoleptic |
| Taste | Characteristic | organoleptic |
| Color value | 4-12 | UV |
| Loss on drying | ≤5% | GB5009.3 |
| Ashes | ≤5% | GB5009.4 |
| Bulk Density | 35~60g/100ml | Density meter |
| Particle Size | NLT 95% through 80 mesh | Mesh sieve |
| Heavy Metals | ≤10ppm | GB/T5009.74-2003 |
| Lead (Pb) | ≤1ppm | GB5009.12-2010 |
| Arsenic (As) | ≤1ppm | GB/T5009.11-2003 |
| Cadmium (Cd) | ≤0.5ppm | GB/T5009.15-2003 |
| Mercury (Hg) | ≤0.1ppm | GB/T5009.17-2003 |
| Total Plate Count | ≤1000CFU/G | GB/T4789.2-2010 |
| Yeast and mould | ≤100 CFU/G | GB/T4789.15-2010 |
| E. coli | Negative | GB/T4789.38-2012 |
| Salmonella | Negative | GB4789.4-2010 |
| S.aureus | Negative | GB4789.10-2010 |
| Packing | 25kg/ drum or as your requirement | |
| Storage | Store in a cool and dry area, avoiding high heat, light and oxygen | |
| Shelf life | 2 years if stored properly | |
