Assessment of membrane-based technologies for alcohol removal in wine: potentialities and perspectives

This study aimed at assessing the performance of nanofiltration (NF) and reverse osmosis (RO) membranes in both flat-sheet and spiral-wound configurations for the dealcoholization of white wine under selected operating conditions, focusing on permeate flux behavior, fouling index, permeability, ethanol rejection rates and retention of main wine components. In another approach, the impact of process parameters, such as feed flow rate and stripping flow rate, on the dealcoholization of white wine by using osmotic distillation (OD) was investigated.