Nearly half of the total flavonols, a phytochemical found in cranberry fruit, is left in the stems, skins, and pulp after processing cranberries for juice according to recent USDA research featured in this USDA-ARS news release.
Flavonols have been linked to human health benefits. The Cranberry Institute has compiled a wealth of information related to cranberry and human health research. Go to their homepage to access their research library, a link is provided on the lower left-hand corner.
Here is a link to the Cranberry Pomace Scientific article.
Here is a link to the Western Farm Press article.