The purified proanthocyanidin oligomers of Cistus salvifolius herb extract accounted for 78%
of the total proanthocyanidins and 73% of the total antioxidant activity of this extract. To …

After flavonol glycosides, monomeric flavan-3-ols, and dimeric and trimeric
proanthocyanidins were fractionated from an extract of sea buckthorn (Hippophaë …

This study aimed to establish an approach for preparing new representative
proanthocyanidin oligomers from persimmon for further structure− activity relationship study …

Polymeric proanthocyanidins isolated from a grape seed phenolic extract were hydrolysed
in the presence of phloroglucinol into monomer catechins and their nucleophile derivatives …

A prune extract was separated by an antioxidant-guided assay to obtain an oligomeric
proanthocyanidin fraction. The antioxidative oligomer was characterized as a procyanidin …

Two new natural prodelphinidin trimers have been isolated from the air-dried herb of Cistus
albidus, epigallocatechin-(4β→ 8)-gallocatechin-(4β→ 8)-catechin and epigallocatechin …

At present, the most widely and successfully used antioxidants are complexes of oligomeric
proanthocyanidins (COPCs), which are considered as the most important biologically active …

Two new proanthocyanidin trimers have been isolated from Cistus incanus herb;
gallocatechin-(4α→ 6)-gallocatechin-(4α→ 8)-gallocatechin (compound 1) and …

Proanthocyanidins from the rhizomes of Selliguea feei (PSFs) were solvent-extracted and
fractionated by Sephadex LH-20 column chromatography to give a 2.42% isolated yield (dry …

Proanthocyanidin oligomers with different degrees of polymerization were isolated from
Saskatoon berries (Amelanchier alnifolia) by means of gel adsorption and normal-phase …