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Features:
1. All kinds of specification of grape seed extract,(40%,60%,80%,90%,95%), high quality can meet different customer's requirement.

2. The raw material is adopt the excellent grape seed from the the north of Yellow River which is suitable for the grape's grow, it is free of pestiside.

3. The extraction process is only use water and ethanol, ensure the safety of the product.

4. The oligomers content is very high, ensure the unit proanthocyanidin's treatment.

5. low ash, impurity, heavy metal residue is lower than 10ppm.

6. It has good solubility in water and ethanol, so it was widely used in different field.
 
CoA:
Appearance: Reddish-brown fine powder
Taste: astringent
Polyphenol: >=95%
After burn: <=0.5%
Loss on dry: <=5.0%
PH: 2.5 - 4.5
Heavy metal: <=10ppm
As: <=2ppm
Organic solvent: Non-detective
Pestocides: Non-detective
Total Aerobic: <=1000
Mold and Yeast: <=100
E.Coli: Non-detective
Salmonella: Non-detective
  
Active ingredient:
Polyphenol, proanthocyanidin