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Selective fractionation of sugar beet pulp for release of fermentation and chemical feedstocks: optimisation of thermo-chemical pre-treatment

Hamley-Bennett, C; Lye, GJ; Leak, DJ; (2016) Selective fractionation of sugar beet pulp for release of fermentation and chemical feedstocks: optimisation of thermo-chemical pre-treatment. Bioresource Technology , 209 pp. 259-264. 10.1016/j.biortech.2016.02.131. Green open access

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Abstract

The effect of time and pressure on the selective extraction of sugar beet pectin using steam pre-treatment on unprocessed Sugar Beet Pulp was evaluated using a design of experiments approach. This process gave the highest solubilisation of pectin oligomers at a relatively low pressure and longer time (5Bar, 24min), whilst leaving the majority of the cellulose fraction intact. This method of steam pre-treatment fits into the concept of a sugar beet biorefinery as it valorises an existing waste stream without requiring any further physical processing such as milling or dilution with water. The residual cellulose fraction was enriched in cellulose and could be effectively fermented into ethanol by yeast after enzymatic digestion, producing 0.48g ethanol per gram of glucose.

Type: Article
Title: Selective fractionation of sugar beet pulp for release of fermentation and chemical feedstocks: optimisation of thermo-chemical pre-treatment
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.biortech.2016.02.131
Publisher version: http://dx.doi.org/10.1016/j.biortech.2016.02.131
Language: English
Additional information: Copyright © 2016 Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The final published version is available on the journal website at http://dx.doi.org/10.1016/j.biortech.2016.02.131
Keywords: Sugar Beet Pulp; Biorefinery; Steam explosion; Design of experiments; Ethanol fermentation
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Biochemical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1481265
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