Customization: | Available |
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Certification: | RoHS, BRC, ISO, FDA, HACCP, SGS |
Assay Method: | HPLC, UV |
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Product Name | Resveratrol |
Latin name | Polygonum Cuspidatum Sieb.et Zucc. |
Other names | Polygonum Cuspidatum P.E, Rhizoma Polygoni Cuspidati P.E , Polygonum Cuspidatum P.E, Gentrin Knotweed P.E., Trans resveratrol extract, Polygonum Cuspidatum Root Extract |
Plant Use Part | Root & Rhizome of Polygonum Cuspidatum |
Product specification | 50%~99% Resveratrol |
Active Ingredient | Resveratrol |
Variety | Polygonum Cuspidatum |
Appearance | Brown powder and Whilte Powder |
Test method | HPLC |
Molecular Formula | C14H12O3 |
Physical Control | |||
Appearance | Fine Powder | Complies | Visual |
Color | Brown | Complies | Visual |
Odor | Characteristic | Complies | Organoleptic |
Taste | Characteristic | Complies | Organoleptic |
Particle Size | 100% pass 80 mesh | Complies | 80 Mesh Screen |
Loss on Drying | 5% Max | 0.0377 | 5 g/105°C/ 2 hrs |
Ash | 5%Max | 0.0379 | 2 g/525°C/ 5 hrs |
Part of Plant Used | Root | Complies | / |
Solvent Extract | Ethanol & Water | Complies | / |
Chemical Control | |||
Heavy metals | NMT10ppm | Conforms | Atomic Absorption |
Arsenic (As) | NMT 2ppm | Conforms | Atomic Absorption |
Mercury(Hg) | NMT 1ppm | Conforms | Atomic Absorption |
Lead (Pb) | NMT 2ppm | Conforms | Atomic Absorption |
GMO Status | GMO Free | Conforms | / |
Solvent Residual | Meet E.P Standard | Conforms | Ph.Eur |
Pesticides Residues | Meet USP Standard | Conforms | Gas Chromatography |
Benzo(a)pyrene | NMT 10ppb | Conforms | GC-MS |
Sum of benzo(a)pyrene, benz(a)anthracene, benzo(b)fluoranthene and chrysene | NMT 50ppb | Conforms | GC-MS |
Microbiological Control | |||
Total Plate Count | 10000cfu/g Max | Conforms | AOAC |
Yeast & Mold | 300cfu/g Max | Conforms | AOAC |
S. aureus | Negative | Negative | AOAC |
E.Coli | Negative | Negative | AOAC |
Salmonella | Negative | Negative | AOAC |
Pseudomonas aeruginosa | Negative | Negative | USP |
FAQ |
1. How to contact us? |
1. You can chat with us via Trade Manager online. 2. You can send us an inquiry here or by Email with your interested products. 3. You can call or message us by phone, or use WhatsApp, Wechat to leave a message to us, You can get our reply soon, |
2. How to test the product quality before placing orders? |
1. If stock specifications, you can get free samples from us, and you only need to pay the express fee or arrange a courier to us and take the samples. 2. If OEM products, we will manufacture the products according to your specifications and requests, then send them to you to confirm |
3. What's your MOQ? |
Usually the MOW is 25KG for bulk, sample is 1kg |
4. Can you give me a discount? |
Yes, Price is determined by quantity, larger quantity with lower price, |
5. What payment method do you support? |
We accept payment by telegraphic transfer (T/T) and Western Union, PayPal. |
6. How long is the lead time? |
Usually the order will be delivered within 5 working days after order confirmed, expect for OEM products, |
7. How do you treat quality complain? |
- First, we will check the production record and test the reserved sample to figure out the problems and offer an optimal solution for you, - If problem is caused by us, we will send you a new batch of goods according to our return policy or refund to you, If problem is caused by the third party, we will apply for insurance claim to guarantee the interests of both of sides, |