Application of diafiltration to increase Fructooligosaccharides'purity by membrane DS-5-DL

Abstract

This article presented results of application of diafiltration in  fructooligosaccharides by membrane DS-5-DL. Under conditions of temperature of 45ºC, feed concentration of 5% (w/v), flow  rate  of  6  l/min  and  pressure  of  25  bar,  applying  diafiltration  of  CVD  and  VVD,  the relationship  between  FOS’s  concentration and diafiltration step as well as the correlation between FOS’s yield and purity were determined. Thehighest purity was 86.84% in VVD mode with ratio of flow rate of dilution water/permeate of 0.90/1.