What are Grape Seed Polyphenols?
grape seed extract 95 polyphenols are leftovers from wineries. Grapes will produce a lot of by-products in the process of juicing and winemaking, such as grape seeds, grape skins, etc. In the past, most wineries directly discarded them or fermented them as fertilizers, which violated the agricultural circular economy and the sustainable development of the wine industry. idea. Studies have found that the polyphenols contained in grape seeds are much richer in both content and types than grape skins and pulp.
Grape Seed Extract Polyphenols Powder is mainly composed of polyphenols such as proanthocyanidins, catechins, epicatechins, gallic acid, and epicatechin gallates. As a natural bioactive substance, it is widely used in functional foods, health foods, daily products and medicines by utilizing its biological activities such as antioxidant, antibacterial and anti-inflammatory, prevention and treatment of cardiovascular diseases and prevention of chronic complications of diabetes.
COA of Grape Seed Extract
| ITEM | SPECIFICATION | RESULTS | TEST METHOD |
| Assay | OPC ≥ 65.0% | 65.67% | UV |
| Polyphenols ≥ 95.0% | 95.38% | ||
| Appearance | Reddish brown powder | Complies | Organoleptic |
| Odor | Characteristic | Complies | Organoleptic |
| Taste | Characteristic | Complies | Organoleptic |
| Bulk density | 40-60g/100ml | 43.16g/100ml | EP8.0<2.9.34> |
| Tapped density | 60-90g/100ml | 64.08g/100ml | EP8.0<2.9.34> |
| Particle size | NLT 95% pass 80 mesh | Complies | EP8.0<2.9.12> |
| Loss on drying | ≤ 5.00% | 3.01% | EP8.0<2.2.32> |
| Residue on Ignition | ≤ 5.00% | 2.99% | EP8.0<2.4.16> |
| Extract solvents | Ethanol & Water (70:30) | Complies | YSG Method SC/STP-003-02 |
| Carrier | None | Complies | YSG Method SC/STP-003-02 |
| Heavy metal | ≤ 10mg/kg | <10mg/kg | EP8.0<2.4.8> |
grape seed extract polyphenols Function
● Antioxidant activity
● Antibacterial activity
● Prevention and treatment of cardiovascular and cerebrovascular diseases
● Prevention and treatment of chronic complications of diabetes

★Applications in the food industry
1. The grape extract with polyphenols is added to the traditional yogurt process, and the yogurt produced is mild in taste, delicate in texture, high in health care function and long in storage;
2. Adding grape seed extract in the production of cake, the produced grape polyphenol cake not only increases the variety of colors, but also has a refreshing and rich wine flavor, improving the consistent sweetness and greasy feeling;
3. Because Grape Seed Extract Polyphenols Powder has strong antioxidant activity, it is regarded as an ideal natural food additive in edible oils and meat products, which can inhibit lipid peroxidation, prolong the shelf life, and avoid peculiar smell of meat products.
★Application in daily chemical industry
Because Grape Seed Extract Polyphenols Powder has the activities of preventing skin aging, inhibiting skin inflammation, anti-radiation and anti-allergy, it can effectively absorb ultraviolet rays, especially in the long-range area, and it is widely used in daily chemical products.
1. French Caudalie grape polyphenol lotion eye cream series;
2. Japan has developed and produced skin immune enhancers containing grape polyphenols;
3. China invented a mouthwash to prevent dental caries and oral ulcers, which can effectively remove bacteria in the oral cavity, and long-term use has no side effects on the human body;
★Application in the pharmaceutical industry
1. Some phytochemicals present in grapes are involved in maintaining intraocular pressure, regulating glucose metabolism and inhibiting pro-inflammatory cytokines in the system, which can slow down eye diseases;
2. Epidemiological studies have shown that Grape Seed Extract Polyphenols Powder has antibacterial and anti-inflammatory, cardiovascular disease prevention, anti-cancer, anti-tumor, anti-allergic and other effects;
3. Grape Seed Extract Polyphenols can be directly made into capsules, tablets and other dosage forms as raw materials of healthy food. It is sold over-the-counter in the United States, and 95% of them are standardized as dietary supplements because of their health benefits, especially strong anti-inflammatory properties. oxidative activity.
The factory currently mainly produce and the most popular specification is grape seed extract 95% OPC, grape seed extract 95% Polyphenols and grape seed extract 95% PAC, I would like to know if we have a chance to cooperate on this product. Maybe you can have the opportunity to review the requirements with your team as well as your clients? medical@ysgcn.com
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