scholarly journals An integrated biorefinery concept for conversion of sugar beet pulp into value-added chemicals and pharmaceutical intermediates

2017 ◽  
Vol 202 ◽  
pp. 415-431 ◽  
Author(s):  
Max Cárdenas-Fernández ◽  
Maria Bawn ◽  
Charlotte Hamley-Bennett ◽  
Penumathsa K. V. Bharat ◽  
Fabiana Subrizi ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Animal Feed ◽  
Value Added ◽  
Sugar Beet Pulp ◽  
High Yield ◽  
Integrated Biorefinery ◽  
Physico Chemical ◽  
Beet Pulp ◽  
Commercial Yeast ◽  
The Uk

Over 8 million tonnes of sugar beet are grown annually in the UK. Sugar beet pulp (SBP) is the main by-product of sugar beet processing which is currently dried and sold as a low value animal feed. SBP is a rich source of carbohydrates, mainly in the form of cellulose and pectin, including d-glucose (Glu), l-arabinose (Ara) and d-galacturonic acid (GalAc). This work describes the technical feasibility of an integrated biorefinery concept for the fractionation of SBP and conversion of these monosaccharides into value-added products. SBP fractionation is initially carried out by steam explosion under mild conditions to yield soluble pectin and insoluble cellulose fractions. The cellulose is readily hydrolysed by cellulases to release Glu that can then be fermented by a commercial yeast strain to produce bioethanol at a high yield. The pectin fraction can be either fully hydrolysed, using physico-chemical methods, or selectively hydrolysed, using cloned arabinases and galacturonases, to yield Ara-rich and GalAc-rich streams. These monomers can be separated using either Centrifugal Partition Chromatography (CPC) or ultrafiltration into streams suitable for subsequent enzymatic upgrading. Building on our previous experience with transketolase (TK) and transaminase (TAm) enzymes, the conversion of Ara and GalAc into higher value products was explored. In particular the conversion of Ara into l-gluco-heptulose (GluHep), that has potential therapeutic applications in hypoglycaemia and cancer, using a mutant TK is described. Preliminary studies with TAm also suggest GluHep can be selectively aminated to the corresponding chiral aminopolyol. The current work is addressing the upgrading of the remaining SBP monomer, GalAc, and the modelling of the biorefinery concept to enable economic and Life Cycle Analysis (LCA).

Restructuring the Conventional Sugar Beet Industry into a Novel Biorefinery: Fractionation and Bioconversion of Sugar Beet Pulp into Succinic Acid and Value-Added Coproducts

2019 ◽  
Vol 7 (7) ◽  
pp. 6569-6579 ◽  
Author(s):  
Maria Alexandri ◽  
Roland Schneider ◽  
Harris Papapostolou ◽  
Dimitrios Ladakis ◽  
Apostolis Koutinas ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Succinic Acid ◽  
Value Added ◽  
Sugar Beet Pulp ◽  
Beet Pulp

Physico-chemical characterization of alkaline soluble polysaccharides from sugar beet pulp

2009 ◽  
Vol 23 (6) ◽  
pp. 1554-1562 ◽  
Author(s):  
Marshall L. Fishman ◽  
Hoa K. Chau ◽  
Peter H. Cooke ◽  
Madhav P. Yadav ◽  
Arland T. Hotchkiss
Keyword(s):  
Sugar Beet ◽  
Chemical Characterization ◽  
Sugar Beet Pulp ◽  
Physico Chemical ◽  
Beet Pulp

Physico-chemical characterization of protein-associated polysaccharides extracted from sugar beet pulp

2013 ◽  
Vol 92 (2) ◽  
pp. 2257-2266 ◽  
Author(s):  
Marshall L. Fishman ◽  
Hoa K. Chau ◽  
Phoebe X. Qi ◽  
Arland T. Hotchkiss ◽  
Madhav P. Yadav
Keyword(s):  
Sugar Beet ◽  
Chemical Characterization ◽  
Sugar Beet Pulp ◽  
Physico Chemical ◽  
Beet Pulp

Sugar beet pulp as biomass

2017 ◽  
pp. 29-32 ◽  
Author(s):  
Kazm Eber Özba ◽  
Özen Özboy Özba
Keyword(s):  
Sugar Beet ◽  
Animal Feed ◽  
Sugar Industry ◽  
Low Cost ◽  
Industrial Applications ◽  
Single Cell Protein ◽  
Sugar Beet Pulp ◽  
Raw Material ◽  
Cell Protein ◽  
Beet Pulp

The sugar beet industry produces considerable amounts of organic waste and by-products. Sugar beet pulp (SBP) is the residue that remains after sugar extraction. SBP is a lignocellulosic by-product of the sugar industry and generally used as animal feed at relatively low price. Instead of cattle feeding, SBP can be used as a raw material for industrial applications because it is low-cost and available in large amounts. Biomass is a clean and renewable energy source. The use of SBP for the production of ethanol, methanol, single cell protein, biofuels etc. is economically very attractive. This literature review evaluates the use of SBP as biomass.

Physico-chemical characterization of a cellulosic fraction from sugar beet pulp

Cellulose ◽  
2011 ◽  
Vol 18 (3) ◽  
pp. 787-801 ◽  
Author(s):  
Marshall L. Fishman ◽  
Hoa K. Chau ◽  
David R. Coffin ◽  
Peter H. Cooke ◽  
Phoebe Qi ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Chemical Characterization ◽  
Sugar Beet Pulp ◽  
Physico Chemical ◽  
Beet Pulp

scholarly journals Physicochemical, Thermal and Rheological Properties of Pectin Extracted from Sugar Beet Pulp Using Subcritical Water Extraction Process

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1413
Author(s):  
Seyed Hadi Peighambardoust ◽  
Maryam Jafarzadeh-Moghaddam ◽  
Mirian Pateiro ◽  
José M. Lorenzo ◽  
Rubén Domínguez
Keyword(s):  
Sugar Beet ◽  
Corn Starch ◽  
Subcritical Water ◽  
Maximum Yield ◽  
Value Added ◽  
Extraction Process ◽  
Sugar Beet Pulp ◽  
Operational Parameters ◽  
Subcritical Water Extraction ◽  
Beet Pulp

The objective of this study was to characterize the properties of pectin extracted from sugar beet pulp using subcritical water (SWE) as compared to conventional extraction (CE). The research involved advanced modeling using response surface methodology and optimization of operational parameters. The optimal conditions for maximum yield of pectin for SWE and CE methods were determined by the central composite design. The optimum conditions of CE were the temperature of 90 °C, time of 240 min, pH of 1, and pectin recovery yield of 20.8%. The optimal SWE conditions were liquid-to-solid (L/S) ratio of 30% (v/w) at temperature of 130 °C for 20 min, which resulted in a comparable yield of 20.7%. The effect of obtained pectins on viscoamylograph pasting and DSC thermal parameters of corn starch was evaluated. The contents of galacturonic acid, degree of methylation, acetylation, and ferulic acid content were higher in the pectin extracted by SWE, while the molecular weight was lower. Similar chemical groups were characterized by FTIR in both SWE and CE pectins. Color attributes of both pectins were similar. Solutions of pectins at lower concentrations displayed nearly Newtonian behavior. The addition of both pectins to corn starch decreased pasting and DSC gelatinization parameters, but increased ΔH. The results offered a promising scalable approach to convert the beet waste to pectin as a value-added product using SWE with improved pectin properties.

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