Membrane techniques for the product quality and identity

In this work performances of different membrane techniques have been studied: reverse osmosis, nanofiltration and membrane contactors applied to must and wines. Different rejections of several membranes have been evaluated. The results highlighted a great variability of different materials, therefore allow the development of different processes and aimed at separation process. The experiences made with the contactors has allowed us to verify the de-alcoholization process and the volatile acidity removal from the wines, without any wine fractioning. The combination of this techniques can be also interesting, especially in combination with other separation process. The challenge now is to evaluate the deontological ethics, not for the single phase in which the process can be applied, but to the aim achievable, out of all is strategic the concrete perspective to guarantee the territorial identity