In opposite, the effect lower solute concentration in the present study (efficiency 66% and 59x of the first cycles from fresh blueberry and pineapple juices, respec comparable to obtained by Luo et al. (2010) and is Petzold and Aguilera (2013), with an efficiency of approximately 7 from 4300 of solids) and 55% (from a 10% of sucrose solution) respectively