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Centrifugal partition chromatography in a biorefinery context: Optimisation and scale-up of monosaccharide fractionation from hydrolysed sugar beet pulp

Ward, David P., Hewitson, Peter, Cárdenas-Fernández, Max, Hamley-Bennett, Charlotte, Díaz-Rodríguez, Alba, Douillet, Nathalie, Adams, Joseph P., Leak, David J., Ignatova, Svetlana, Lye, Gary J. and others. (2017) Centrifugal partition chromatography in a biorefinery context: Optimisation and scale-up of monosaccharide fractionation from hydrolysed sugar beet pulp. Journal of Chromatography A, 1497 . pp. 56-63. ISSN 0021-9673. (doi:10.1016/j.chroma.2017.03.003) (KAR id:88162)

Abstract

The isolation of component sugars from biomass represents an important step in the bioprocessing of sustainable feedstocks such as sugar beet pulp. Centrifugal partition chromatography (CPC) is used here, as an alternative to multiple resin chromatography steps, to fractionate component monosaccharides from crude hydrolysed sugar beet pulp pectin. CPC separation of samples, prepared in the stationary phase, was carried out using an ethanol: ammonium sulphate (300 g L−1) phase system (0.8:1.8 v:v) in ascending mode. This enabled removal of crude feedstream impurities and separation of monosaccharides into three fractions (l-rhamnose, l-arabinose and d-galactose, and d-galacturonic acid) in a single step. Throughput was improved three-fold by increasing sample injection volume, from 4 to 16% of column volume, with similar separation performance maintained in all cases. Extrusion of the final galacturonic acid fraction increased the eluted solute concentration, reduced the total separation time by 24% and removed the need for further column regeneration. Reproducibility of the separation after extrusion was validated by using multiple stacked injections. Scale-up was performed linearly from a semi-preparative 250 mL column to a preparative 950 mL column with a scale-up ratio of 3.8 applied to mobile phase flow rate and sample injection volume. Throughputs of 9.4 g L−1 h−1 of total dissolved solids were achieved at the preparative scale with a throughput of 1.9 g L−1 h−1 of component monosaccharides. These results demonstrate the potential of CPC for both impurity removal and target fractionation within biorefinery separations.

Item Type: Article
DOI/Identification number: 10.1016/j.chroma.2017.03.003
Uncontrolled keywords: Monosaccharides; Sugar beet pulp; Biorefinery; Scale-up; Centrifugal partition chromatography
Divisions: Divisions > Division of Natural Sciences > Biosciences
Depositing User: Max Cardenas Fernandez
Date Deposited: 14 May 2021 15:43 UTC
Last Modified: 04 Mar 2024 18:17 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/88162 (The current URI for this page, for reference purposes)

University of Kent Author Information

Cárdenas-Fernández, Max.

Creator's ORCID: https://orcid.org/0000-0003-1422-5369
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