What specific type of Proanthocyanidins (PACs) found in cranberries differentiates them molecularly from the B-type PACs present in other fruits?

Answer

A-type PACs

The text explicitly highlights that the unique health benefits of cranberries are strongly linked to their Proanthocyanidins (PACs), which belong to the flavonoid family. What sets these compounds apart in cranberries is their specific molecular structure, identified as A-type PACs. This structure is contrasted directly with the B-type PACs commonly found in various other fruits. This distinction in molecular configuration is fundamental to understanding why the A-type PACs exhibit potent anti-adhesion properties within the human body, particularly in defense against bacterial colonization in the urinary tract.

What specific type of Proanthocyanidins (PACs) found in cranberries differentiates them molecularly from the B-type PACs present in other fruits?
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