Products Description

Grape skin extract is a natural plant extract refined from the mature skin of wine grapes (Latin name Vitis vinifera) of the Vitaceae family through standardized plant extraction processes such as low-temperature solvent extraction, vacuum concentration, and spray drying. It is rich in various phenolic substances. Grape skin polyphenols 30% are the standardized specification of this extract category, with total polyphenol content as the core quality control indicator, and the mainstream commercial specification in the industry has a minimum total polyphenol content of 30%. TheGrape Skin Polyphenols 30% is a fine reddish-brown to purplish-red powder with the inherent natural odor of grape skin, containing various natural phenolic compounds such as proanthocyanidins, anthocyanins and resveratrol.

Specification

Product Name	Grape Skin Polyphenols 30%
Active Ingredient	Polyphenol
Specification	30%
Raw Materials	Red Grape Skin
Color	Red Brown Powder
Application fields	Food Supplements
Shelf Life	24 Months Properly Storage
Particle Size	80 Mesh

COA

Product Name	Grape Skin Polyphenols 30%
Botanical Name	Vitis vinifera L
Used Part	Skin
Test Items	Specifications	Test Methods
Assay	≥30.0% Polyphenols	UV
Appearance	Red Brown Powder	Visual
Odor and Taste	Characteristic	Organoleptic
Sieve analysis	Through 80 mesh	80 Mesh Screen
Loss on Drying	≤5.0 %	105℃/2 hrs
Total Ash	≤5.0 %	GB 5009.4-2016
Bulk Density	40~60g/100mL	GB/T 18798.5
Tap Density	50~80g/100mL	GB/T 18798.5
Lead (Pb)	<3.0mg/kg	ICP-MS
Arsenic (As)	<2.0mg/kg	ICP-MS
Cadmium (Cd)	<1.0mg/kg	ICP-MS
Mercury (Hg)	<0.1mg/kg	ICP-MS
Total Aerobic Count	≤1000cfu/g	GB 4789.2
Yeast & Moulds	≤100cfu/g	GB 4789.15
E-Coli	Negative	GB 4789.3
Salmonella	Negative	GB 4789.4
Staphylococcus Aureus	Negative	GB 4789.10

Function

1. Effectively scavenge free radicals inside and outside organisms, resist cellular damage caused by oxidative stress, and exert stable antioxidant effects;

2. Protect vascular endothelial cells, help maintain vascular wall elasticity, and support the improvement of body microcirculation;

3. Inhibit tyrosinase activity, reduce abnormal melanin deposition, and relieve skin dullness caused by oxidation;

4. Slow down the oxidation process of lipids and proteins, inhibit oxidative rancidity, and deliver natural antioxidant preservation effect;

5. Alleviate inflammatory stress caused by external stimuli, and reduce local redness and discomfort.

Application

1. Dietary supplement industry: used as a core raw material for formula compounding of antioxidant capsules, chewable tablets, solid powder, oral liquids and other products;

2. Functional food & beverage: suitable for raw material addition in red wine flavored drinks, compound fruit and vegetable juice, meal replacement powder, baked goods, functional solid beverages and more;

3. Skincare & cosmetics field: can be added into formulas of antioxidant serums, brightening creams, soothing toners, sheet masks, body care creams and other skincare products;

4. Animal nutrition field: can be added to pet functional nutritional pastes and livestock feed premixes as a nutritional fortification raw material;

5. Food preservation & processing: used as a natural antioxidant auxiliary in the preservation and processing of edible oils, nuts, meat products and other foods.