Nanofiltration potential for the purification of highly concentrated enzymatically produced oligosaccharides

Andrés Córdova; Carolina Astudillo; Lidietta Giorno; Cecilia Guerrero; Carmela Conidi; Andrés Illanes; Alfredo Cassano

doi:10.1016/j.fbp.2015.11.005

Nanofiltration potential for the purification of highly concentrated enzymatically produced oligosaccharides

Andrés Córdova, Carolina Astudillo, Lidietta Giorno, Cecilia Guerrero, Carmela Conidi, Andrés Illanes, Alfredo Cassano

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38 Scopus citations

Abstract

The performance of five commercial nanofiltration (NF) membranes was evaluated in the fractionation of enzymatically produced galacto-oligosaccharides (GOS). Filtration experiments were performed by modifying the solute concentration (10.5-40°Brix) and effective transmembrane pressure (TMP_e) from 5 to 40 bar. In terms of flux and apparent rejection (R_ap), thin film composite membranes (ATF and NFA) resulted inadequate. Polyamide membrane (GE) showed a better performance in terms of low R_ap for mono and disaccharides, as well as a negligible fouling; however, a strong reduction of flux was observed when increasing the solute concentration. Polyethersulphone (PES) membranes (NP030 and NP010) showed a very good performance in terms of low R_ap values for monosaccharides and disaccharides at TMP_e values lower than 25 bar. Membrane NP010 showed the highest flux at all the operating conditions investigated, producing total rejection of GOS at 40 bar with high potential for their concentration; however, selectivity could not be controlled because of the high R_ap in lactose. At an operating TMP_e of 20 bar, GOS were fractionated with sustainable fluxes (28 kg/m²/h) and a good selectivity, even when highly concentrated solutions (40°Brix) were treated, demystifying the limitation of nanofiltration as a downstream operation for treating highly concentrated solutions.

Original language	English
Pages (from-to)	50-61
Number of pages	12
Journal	Food and Bioproducts Processing
Volume	98
DOIs	https://doi.org/10.1016/j.fbp.2015.11.005
State	Published - 1 Apr 2016

Keywords

Critical flux
Fractionation
Galacto-oligosaccharides (GOS)
High solute concentration
Limiting flux
Nanofiltration

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10.1016/j.fbp.2015.11.005

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title = "Nanofiltration potential for the purification of highly concentrated enzymatically produced oligosaccharides",

abstract = "The performance of five commercial nanofiltration (NF) membranes was evaluated in the fractionation of enzymatically produced galacto-oligosaccharides (GOS). Filtration experiments were performed by modifying the solute concentration (10.5-40°Brix) and effective transmembrane pressure (TMPe) from 5 to 40 bar. In terms of flux and apparent rejection (Rap), thin film composite membranes (ATF and NFA) resulted inadequate. Polyamide membrane (GE) showed a better performance in terms of low Rap for mono and disaccharides, as well as a negligible fouling; however, a strong reduction of flux was observed when increasing the solute concentration. Polyethersulphone (PES) membranes (NP030 and NP010) showed a very good performance in terms of low Rap values for monosaccharides and disaccharides at TMPe values lower than 25 bar. Membrane NP010 showed the highest flux at all the operating conditions investigated, producing total rejection of GOS at 40 bar with high potential for their concentration; however, selectivity could not be controlled because of the high Rap in lactose. At an operating TMPe of 20 bar, GOS were fractionated with sustainable fluxes (28 kg/m2/h) and a good selectivity, even when highly concentrated solutions (40°Brix) were treated, demystifying the limitation of nanofiltration as a downstream operation for treating highly concentrated solutions.",

keywords = "Critical flux, Fractionation, Galacto-oligosaccharides (GOS), High solute concentration, Limiting flux, Nanofiltration",

author = "Andr{\'e}s C{\'o}rdova and Carolina Astudillo and Lidietta Giorno and Cecilia Guerrero and Carmela Conidi and Andr{\'e}s Illanes and Alfredo Cassano",

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T1 - Nanofiltration potential for the purification of highly concentrated enzymatically produced oligosaccharides

AU - Córdova, Andrés

AU - Astudillo, Carolina

AU - Giorno, Lidietta

AU - Guerrero, Cecilia

AU - Conidi, Carmela

AU - Illanes, Andrés

AU - Cassano, Alfredo

PY - 2016/4/1

Y1 - 2016/4/1

N2 - The performance of five commercial nanofiltration (NF) membranes was evaluated in the fractionation of enzymatically produced galacto-oligosaccharides (GOS). Filtration experiments were performed by modifying the solute concentration (10.5-40°Brix) and effective transmembrane pressure (TMPe) from 5 to 40 bar. In terms of flux and apparent rejection (Rap), thin film composite membranes (ATF and NFA) resulted inadequate. Polyamide membrane (GE) showed a better performance in terms of low Rap for mono and disaccharides, as well as a negligible fouling; however, a strong reduction of flux was observed when increasing the solute concentration. Polyethersulphone (PES) membranes (NP030 and NP010) showed a very good performance in terms of low Rap values for monosaccharides and disaccharides at TMPe values lower than 25 bar. Membrane NP010 showed the highest flux at all the operating conditions investigated, producing total rejection of GOS at 40 bar with high potential for their concentration; however, selectivity could not be controlled because of the high Rap in lactose. At an operating TMPe of 20 bar, GOS were fractionated with sustainable fluxes (28 kg/m2/h) and a good selectivity, even when highly concentrated solutions (40°Brix) were treated, demystifying the limitation of nanofiltration as a downstream operation for treating highly concentrated solutions.

AB - The performance of five commercial nanofiltration (NF) membranes was evaluated in the fractionation of enzymatically produced galacto-oligosaccharides (GOS). Filtration experiments were performed by modifying the solute concentration (10.5-40°Brix) and effective transmembrane pressure (TMPe) from 5 to 40 bar. In terms of flux and apparent rejection (Rap), thin film composite membranes (ATF and NFA) resulted inadequate. Polyamide membrane (GE) showed a better performance in terms of low Rap for mono and disaccharides, as well as a negligible fouling; however, a strong reduction of flux was observed when increasing the solute concentration. Polyethersulphone (PES) membranes (NP030 and NP010) showed a very good performance in terms of low Rap values for monosaccharides and disaccharides at TMPe values lower than 25 bar. Membrane NP010 showed the highest flux at all the operating conditions investigated, producing total rejection of GOS at 40 bar with high potential for their concentration; however, selectivity could not be controlled because of the high Rap in lactose. At an operating TMPe of 20 bar, GOS were fractionated with sustainable fluxes (28 kg/m2/h) and a good selectivity, even when highly concentrated solutions (40°Brix) were treated, demystifying the limitation of nanofiltration as a downstream operation for treating highly concentrated solutions.

KW - Critical flux

KW - Fractionation

KW - Galacto-oligosaccharides (GOS)

KW - High solute concentration

KW - Limiting flux

KW - Nanofiltration

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DO - 10.1016/j.fbp.2015.11.005

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SN - 0960-3085

VL - 98

SP - 50

EP - 61

JO - Food and Bioproducts Processing

JF - Food and Bioproducts Processing

ER -

Nanofiltration potential for the purification of highly concentrated enzymatically produced oligosaccharides

Abstract

Keywords

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