Grape Seed Extract
Grape Seed Extract 葡萄籽萃取物
Botanical name: Vitis vinifera L.
Parts used: Seeds
Properties & tastes: Red-brown, light aromatic, astrigent
Active compounds: Oligomeric proanthocyanidins (OPCs), Grapenol etc.
Extract method: By hydro-alcohol extraction.
Specification:
Proanthocyanide：≥95%
Moisture：≤5%
Ash：≤ 2%
Solvent：≤0.01%
Heavy Metals：≤10ppm
As：≤1ppm
Pesticides residue：Absent

Appearance :White powder

Sodium hyaluronate (dry basis):95%-105%

Molecular weight:0.5-0.8 MDa

Loss on drying:≤10%

Protein content:≤0.1%

Nucleic acid (A260,0.33%,1CM):≤0.5%

Appearance of 0.33% solution:clear

PH of 0.5% aqueous solution:5.0-8.5

Heavy metal（iron）:≤80ppm

Chlorides :≤0.5%

Total microbial count :≤100CFU/g

Content of residual isopropanol:≤0.5%

Kinematic viscosity :≥6000mpa’S

Bacterial endotoxin:Absorbance of 0.33% solution(600nm,1cm)