Customization: | Available |
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Certification: | ISO, HACCP, Kosher Halal |
Assay Method: | HPLC, UV, Tlc Gc |
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Resveratrol Grape Skin Extract
Product Name : Resveratrol Grape Skin Extract
Plant Source: Grape Skin
Specification: Resveratrol 99%;50%;20%
Appearance: White Powder
Test Method: HPLC
Description:
Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is a natural compound found in red grape skin, Japanese knotweed (polygonum cuspidatum), peanuts, blueberries and some other berries. It is a powerful antioxidant produced by some plants to protect them against environmental stresses. Antioxidants neutralize free radicals, which are believed to be the cause of aging. Japanese knotweed is the plant source with the highest resveratrol content.
Certificate of Analysis:
Item | Specification | Results | Methods |
Marker Compound | Resveratrol 98% | 90.32% Conform | UV |
Appearance & Color | White Fine Powder | Conform | GB5492-85 |
Odor & Taste | Characteristic | Conform | GB5492-85 |
Plant Part Used | Skin | Conform | |
Extract Solvent | Water & Ethanol | Conform | |
Bulk Density | 0.4-0.6g/ml | 0.40-0.50g/ml | |
Mesh Size | 80 | 100% | GB5507-85 |
Loss on Drying | ≤5.0% | 3.25% | GB5009.3 |
Ash Content | ≤5.0% | 1.35% | GB5009.4 |
Solvent Residue | Negative | Conform | GC |
Heavy Metals | |||
Total Heavy Metals | ≤10ppm | <3.70ppm | AAS |
Arsenic (As) | ≤1.0ppm | <0.45ppm | AAS(GB/T5009.11) |
Lead (Pb) | ≤1.0ppm | <0.45ppm | AAS(GB5009.12) |
Cadmium | <1.0ppm | Not Detected | AAS(GB/T5009.15) |
Mercury | ≤0.1ppm | Not Detected | AAS(GB/T5009.17) |
Microbiology | |||
Total Plate Count | ≤5000cfu/g | <1000cfu/g | GB4789.2 |
Total Yeast & Mold | ≤300cfu/g | <100cfu/g | GB4789.15 |
Total Coliform | ≤40MPN/100g | Not Detected | GB/T4789.3-2003 |
Salmonella | Negative in 25g | Not Detected | GB4789.4 |
Staphylococcus | Negative in 10g | Not Detected | GB4789.1 |
Packing and Storage | 25kg/drum Inside: Double-deck plastic bag, outside: Neutral cardboard barrel & Leave in the shady and cool dry place | ||
Shelf Life | 3 Year When Stored properly | ||
Expiration Date | 3 Years |