Native tannin macromolecules (DP7, average polymerization 6.3) in water-ethanol solution (water fraction 60%)

DP7w60 molecule

Monomeric molecular weight: 0.3 kDa

Oligomeric state: Heptamer

Total molecular weight: 2.1 kDa

Chemical formula:

Apple oligomeric procyanidin fractions of tannin were obtained from cider apple materials