High Quality Polygonum Cuspidatum Extract 50%~98% Resveratrol Powder CAS 501-36-0

Product Description

Resveratrol is a naturally occurring phytoalexin produced by some higher plants in response to injury or fungal infection. Phytoalexins are chemical substances produced by plants as a defense against infection by pathogenic microorganisms, such as fungi. Alexin is from the Greek, meaning to ward off or to protect. Resveratrol may also have alexin-like activity for humans. Epidemiological, in vitro and animal studies suggest that a high resveretrol intake is associated with a reduced incidence of cardiovascular disease, and a reduced risk for cancer.

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

1. Resveratrol protects the heart and circulatory system, lowering cholesterol, and protecting against clots which can cause heart attacks and stroke.2. Resveratrol protects a cell's DNA. It is a powerful antioxidant. Antioxidants can help prevent cell damage caused by free radicals. Free radicals are unstable atoms caused by pollution, sunlight and our bodies natural burning of fat that can lead to cancer, aging and brain degeneration.3. Lowering cholesterin and the blood viscosity, reducing the risk of arteriosclerosis, cardio-cerebrovascular disease and heart disease.4. Anti-virus and accommodate immunity, inhibit Staphylococcus aureus, Micrococcus catarrhalis, Bacillus coli, aeruginosus Bacillus, have better inhibit action with Orphan virus, Fever blisters virus, enteric virus and Kesaqi virus.
1. Applied in food field,it's used as food additive with the function of lengthening life.2. Applied in pharmaceutical field,it's frequently used as medicine supplement or OTCS ingredients and owns good efficacy for treatment of cancer and cardio-cerebrovascular disease.3. Applied in cosmetics,it's can delay aging and prevent UV radiation.

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

Qingdao Vista Bio. Tech. Co., ltd is specialized in studying herbal extract & plant extract, pharmaceutical ingredients, natural nutritional supplement and OEM service.
With the help of well-equipped and advanced production technology and facilities for extracting, concentration, column chromatography, refined separation, vacuum drying and spray drying, our products are in strict accordance with the GMP standards to ensure the quality. Besides GMP standards, we also set up our own strict quality control system based on our many years' Research & Development and producing experiences to ensure high-quality standard which enable us supplying various botanical extracts as per clients′ customized demands.
With cordial and professional R&D, sales and after-sales service groups, Vista has been dedicated to study on how natural plant ingredients benefit human health, on the premise of maintaining the diversity of natural plant raw materials, we constantly improves the extraction process of products, and actively creates new products, so as to better serve the customers in the fields of food, health care products, medicine and cosmetics.

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,