[Latin Name] Vitis vinifera Linn

[Plant Source] Grape seed from Europe

[Specifications] 95%OPCs；45-90% polyphenols

[Appearance] Red brown powder

[Plant Part Used]: seed

[Particle size] 80 Mesh

[Loss on drying] ≤5.0%

[Heavy Metal] ≤10PPM

[Pesticide residue] EC396-2005, USP 34, EP 8.0, FDA

[Storage] Store in cool & dry area, keep away from the direct light and heat.

[Shelf life] 24 Months

[Package] Packed in paper-drums and two plastic-bags inside.

[Gerneral feature]

1. Our product has passed the ID test by ChromaDex, Alkemist Lab. and other

third-party authoritative testing institutions, such as detection;

2. The pesticide residues match (EC) No 396/2005 USP34, EP8.0, FDA and other foreign pharmacopoeia standards and regulations;

3. The heavy metals in strict accordance with the foreign pharmacopoeia standard controls, such as USP34, EP8.0, FDA, etc.;

4. Our company set up a branch and import raw materials directly from Europe with strict control of heavy metal and pesticide residue. Aslo ensure the procyanidins content in grape seed is more than 8.0%.

5. OPCs over 95%, polyphenol over 70%, high activity, the oxidation resistance is strong, the ORAC more than 11000.

[Function]

Grapes (Vitis vinifera) have been heralded for their medicinal and nutritional value for thousands of years. Egyptians ate grapes a very long time back, and several ancient Greek philosophers spoke about the healing power of grapes — usually in the form of wine. European folk healers made an ointment from the sap of grapevines to treat skin and eye diseases. Grape leaves were used to stop bleeding, inflammation, and pain, such as the kind brought on by hemorrhoids. Unripe grapes were used to treat sore throats, and dried grapes (raisins) were used for constipation and thirst. Round, ripe, sweet grapes were used to treat a range of health problems including cancer, cholera, smallpox, nausea, eye infections, and skin, kidney, and liver diseases.

Grape seed extracts are industrial derivatives from whole grape seeds that have a great concentration of vitamin E, flavonoids, linoleic acid and phenolic OPCs. The typical commercial opportunity of extracting grape seed constituents has been for chemicals known as polyphenols having antioxidant activity in vitro.

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Polysaccharide esters (e.g. cellulose and starch) are among the first polymeric materials applied commercially. The way of producing these technically relevant derivatives, mainly the carboxylic acid esters of C2 to C4 acids, have not been changed significantly during their history of manufacture. The investigation of new acylation methods and strategies of analysis was revived during the last decade by the search for tailored, biocompatible material for specific fields of application, e.g., biotechnology, sensor technique and medicine. Unconventional solvents were developed for completely homogeneous acylation reaction applying state of the art techniques of modern organic chemistry for polysaccharide modification. This book will provide a first comprehensive summary of acylation methods in a very practical manner.detailed structure analysis is indispensable for the evaluation of structure-property-relationships. Spectroscopic methods in particular Ftirand Nmr spectroscopy including two dimensional methods are of increasing importance.

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