CAS:537-42-8 Bilberry Extract 99% Pterostilbene Powder
USD $380 - $450 /Kilogram
Min.Order:1 Kilogram
Xiamen Boten Biological Technology Co., Ltd.
Introduction:
Pterostilbene is a polyphenol that occurs naturally in blueberries, cranberries, sparkleberries, lingonberries, and grapes. Blueberries are one of the most readily-available sources of pterostilbene and are typically available year round. Pterostilbene has a high level of bioavailability and offers similar protective effect of resveratrol, and no side effects.
Compared with resveratrol (also phytoalexin but found in grapes), Pterostilbene has the significant advantages in Much improved bio-availability, much longer presence in the body, greater oral absorption and metabolic stability. So Pterostilbene is also called the next generation resveratrol.
Functions:
Application:
COA:
Item | Specification | Result | Test Method |
Active Ingredients | |||
Assay | Pterostilbene 98% | 99.03% | HPLC |
Physical Control | |||
Appearance | Fine powder | Complies | Visual |
Color | Off-White | Complies | Visual |
Odor | Characteristic | Complies | Organoleptic |
Taste | Characteristic | Complies | Organoleptic |
Identification | Positive | Complies | TLC |
Particle Size | 100% pass 80 mesh | Complies | 80 Mesh Screen |
Loss on Drying | 5% Max | 3.78% | CPh |
Ash | 5%Max | 3.54% | CPh |
Extract Solvent | Ethanol and Water | Conforms | / |
Part of Use | Blueberry fruit extract | Conforms | / |
Chemical Control | |||
Heavy metals | NMT 10ppm | Conforms | Atomic Absorption |
Arsenic (As) | NMT 2ppm | Conforms | Atomic Absorption |
Mercury(Hg) | NMT 1ppm | Conforms | Atomic Absorption |
Lead (Pb) | NMT 2ppm | Conforms | Atomic Absorption |
Cadmium (Cd) | NMT 1ppm | Conforms | Atomic Absorption |
GMO Status | GMO Free | Conforms | / |
Pesticides Residues | Meeting Eur.Phram Standard | Conforms | Gas Chromatography |
Microbiological Control | |||
Total Plate Count | 10,000cfu/g Max | Conforms | AOAC |
Yeast & Mold | 300cfu/g Max | Conforms | AOAC |
E.Coli | Negative | Negative | AOAC |
Salmonella | Negative | Negative | AOAC |
Staph Aureus | Negative | Negative | AOAC |
Pseudomonas aeruginosa | Negative | Negative | USP
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