Polyphenols extracted from blueberry (Vaccinium corymbosum) pomace were concentrated
using nanofiltration. Crossflow filtration was shown to be a feasible method for concentrating
the polyphenols present in dilute aqueous solutions. High-performance liquid
chromatography was employed for the determination of total anthocyanins, total flavonols
and chlorogenic acid in the hot water extract. Both nanofiltration membranes (NF245 and
NF270) showed complete rejection of phenolic compounds at good permeances, whereas …