The invention relates to an improved nanofiltration process for separating and recovering components, such as sugars and sugar alcohols from multicomponent mixtures. The process of the invention is characterized by collecting the nanofiltration retentate/permeate in several fractions with different purity, optional recycling of at least one of the collected nanofiltration retentate/permeate fractions to the nanofiltration and recovering the desired component from the nanofiltration permeate/retentate fractions by different methods. In one embodiment of the invention, the process comprises a combination of nanofiltration and chromatography.

 
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