Multiobjective optimization of fructooligosaccharides’ purification by membrane G5

Abstract

This article presented result of study of optimization of fructooligosaccharides’ purification by membrane technology, using membrane G5 (GE Osmonics, USA) with combination optimal criteria R in restrictive area method. After experimental study to establish objective functions for determination effects of two parameters (feed flow rate and pressure) to FOS’s purification, by restrictive area method, optimized conditions for FOS’s purification were determined as follow: feed  flow  rate  of  3  l/min,  pressure  of  19.9  bar.  At these  conditions,  permeate  flux  was  53.3 l/m2.h, rejection of FOS, sucrose and monosaccharides were 81.85%, 51.29% and 22.06%.