… -benzyl ethers of catechin and epicatechin as building blocks for synthetic procyanidins, we
… by capitalizing on the increased acidity of the 4′-hydroxy group of both catechin (2) and …

… are more abundant in tea leaves than the flavan 3β-ols catechin … catechins, are also the
building blocks of proanthocyanidins … great importance for the biosynthesis of proanthocyanidins. …

… and procyanidins) showed an increase at the … with catechin content both in 2007 (r = 0.834;
p ≤ 0.001) and 2008 (r = 0.662; p ≤ 0.05), while no correlation was found between catechin …

… The EOM ether was remarkably increased in CsANRa and … COM ethers associated with PA
biosynthesis. Moreover, an … +)-catechin 4-O-methyl ether is produced from (+)-catechin cation …

… the phase of active PA biosynthesis in wild-type grape flowers, … (+)-catechin-type PA extension
units more efficiently than Cys … of compounds be called sub-proanthocyanidins (sub-PAs). …

… known as condensed tannins, or proanthocyanidins (PAs), are … to catechin clearly established
its role in PA biosynthesis. … PA biosynthesis occurs before flowering and then increases …

… In this regard, GSPE and highly polymeric procyanidins impact on this ratio increasing … In
general, this outcome is maximal with pentamer or greater procyanidins, whereas catechins …

… Proanthocyanidins, or condensed tannins, are crucial … To clarify this point, we determined
catechin and epicatechin … , except catechin polymerized subunits that reached higher levels in …

… )catechin … )-catechin, procyanidin B2 or A2 are summarized in Table 1. It should be noted
that the ability of bacteria to catabolize proanthocyanidins in the gut decreases with an increase …