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Issue No.Vol. No. 5 Issue No. 3 - Publication Year 2016

AuthorKhalefa A. FaneerRosiah RohaniAbdul Wahab Mohammad

Article TitleNanofiltration Of Xylitol Mixed Solution Using Polyethersulfone Membrane In Presence Of Silicon Dioxide Nanoparticles Or Pluronic F127 Additives: A Comparative Study

From Page No.21

To Page No.26

Release Date14-02-2017

Abstract

 

Xylitol is a valuable product in medicine and food fields and can be produced mainly by two processes: (1) chemically with
catalyst and (2) bio technologically with yeast, fungi or bacteria. This xylitol is commonly present in mixture form which consist of
xylitol, xylose and arabinose. Thus purification is required to increase its value either by crystallization, adsorption or membrane
technology. The aim of this work is to investigate the influence of using different nanofiltration (NF) membranes to achieve high
purity of xylitol from model solution. In order to achieve a desirable purity of xylitol, in-house synthesized NF membranes from
pure PES, PES/SiO2 and PES/Pluronic f127 were used in this study. These NF membranes were fabricated via phase inversion
method and further characterized to investigate their performances suitable for xylitol purification. To achieve that: a contact
angle was used for hydrophilicity, pure water flux (PWF), xylitol permeation and rejection were investigated for the best membrane
performances. The contact angle results for these three membranes showed that the SiO2 nanoparticles (NPs) have the best effect
on hydrophilicity, moreover, the PWF enhanced and the PES/ Pluronic showed the higher water flux. The highest rejection was
accomplished with single PES membrane.

 

Xylitol is a valuable product in medicine and food fields and can be produced mainly by two processes: (1) chemically with

catalyst and (2) bio technologically with yeast, fungi or bacteria. This xylitol is commonly present in mixture form which consist of

xylitol, xylose and arabinose. Thus purification is required to increase its value either by crystallization, adsorption or membrane

technology. The aim of this work is to investigate the influence of using different nanofiltration (NF) membranes to achieve high

purity of xylitol from model solution. In order to achieve a desirable purity of xylitol, in-house synthesized NF membranes from

pure PES, PES/SiO2 and PES/Pluronic f127 were used in this study. These NF membranes were fabricated via phase inversion

method and further characterized to investigate their performances suitable for xylitol purification. To achieve that: a contact

angle was used for hydrophilicity, pure water flux (PWF), xylitol permeation and rejection were investigated for the best membrane

performances. The contact angle results for these three membranes showed that the SiO2 nanoparticles (NPs) have the best effect

on hydrophilicity, moreover, the PWF enhanced and the PES/ Pluronic showed the higher water flux. The highest rejection was

accomplished with single PES membrane.

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