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Mototsune OM, Hong SH, Naguib HE, Master ER. Enzymatically Oxidized Carbohydrates As Dicarbonyl Biobased Cross-Linkers for Polyamines. Biomacromolecules 2024; 25:4428-4439. [PMID: 38917058 PMCID: PMC11238324 DOI: 10.1021/acs.biomac.4c00457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 06/27/2024]
Abstract
Carbonyl cross-linkers are used to modify textiles and form resins, and are produced annually in megatonne volumes. Due to their toxicity toward the environment and human health, however, less harmful biobased alternatives are needed. This study introduces carbonyl groups to lactose and galactose using galactose oxidase from Fusarium graminearum (FgrGalOx) and pyranose dehydrogenase from Agaricus bisporus (AbPDH1) to produce four cross-linkers. Differential scanning calorimetry was used to compare cross-linker reactivity, most notably resulting in a 34 °C decrease in reaction peak temperature (72 °C) for FgrGalOx-oxidized galactose compared to unmodified galactose. Attenuated total reflectance Fourier-transform infrared (ATR-FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and proton nuclear magnetic resonance (1H NMR) spectroscopy were used to verify imine formation and amine and aldehyde depletion. Cross-linkers were shown to form gels when mixed with polyallylamine, with FgrGalOx-oxidized lactose forming gels more effectively than all other cross-linkers, including glutaraldehyde. Further development of carbohydrate cross-linker technologies could lead to their adoption in various applications, including in adhesives, resins, and textiles.
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Affiliation(s)
- Owen M. Mototsune
- Department
of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto M5S 3E5 ,Canada
| | - Sung Hwa Hong
- Department
of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto M5S 3E5 ,Canada
| | - Hani E. Naguib
- Department
of Mechanical Engineering, University of
Toronto, 5 King’s
College Rd, Toronto M5S
3G8, Canada
| | - Emma R. Master
- Department
of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto M5S 3E5 ,Canada
- Department
of Bioproducts and Biosystems, Aalto University, Kemistintie 1, FI-00076 Aalto, Espoo,Finland
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2
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Mirsalami SM, Alihosseini A. Selection of the most effective kinetic model of lactase hydrolysis by immobilized Aspergillus niger and free β-galactosidase. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101395] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Cosgrove SC, Mattey AP, Riese M, Chapman MR, Birmingham WR, Blacker AJ, Kapur N, Turner NJ, Flitsch SL. Biocatalytic Oxidation in Continuous Flow for the Generation of Carbohydrate Dialdehydes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04819] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sebastian C. Cosgrove
- Manchester Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, United Kingdom
| | - Ashley P. Mattey
- Manchester Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, United Kingdom
| | - Michel Riese
- Manchester Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, United Kingdom
| | - Michael R. Chapman
- Institute of Process Research & Development, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - William R. Birmingham
- Manchester Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, United Kingdom
| | - A. John Blacker
- Institute of Process Research & Development, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - Nikil Kapur
- Institute of Process Research & Development, University of Leeds, Leeds, LS2 9JT, United Kingdom
- School of Mechanical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - Nicholas J. Turner
- Manchester Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, United Kingdom
| | - Sabine L. Flitsch
- Manchester Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, United Kingdom
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4
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Aumala V, Mollerup F, Jurak E, Blume F, Karppi J, Koistinen AE, Schuiten E, Voß M, Bornscheuer U, Deska J, Master ER. Biocatalytic Production of Amino Carbohydrates through Oxidoreductase and Transaminase Cascades. CHEMSUSCHEM 2019; 12:848-857. [PMID: 30589228 PMCID: PMC6519198 DOI: 10.1002/cssc.201802580] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/23/2018] [Indexed: 06/09/2023]
Abstract
Plant-derived carbohydrates are an abundant renewable resource. Transformation of carbohydrates into new products, including amine-functionalized building blocks for biomaterials applications, can lower reliance on fossil resources. Herein, biocatalytic production routes to amino carbohydrates, including oligosaccharides, are demonstrated. In each case, two-step biocatalysis was performed to functionalize d-galactose-containing carbohydrates by employing the galactose oxidase from Fusarium graminearum or a pyranose dehydrogenase from Agaricus bisporus followed by the ω-transaminase from Chromobacterium violaceum (Cvi-ω-TA). Formation of 6-amino-6-deoxy-d-galactose, 2-amino-2-deoxy-d-galactose, and 2-amino-2-deoxy-6-aldo-d-galactose was confirmed by mass spectrometry. The activity of Cvi-ω-TA was highest towards 6-aldo-d-galactose, for which the highest yield of 6-amino-6-deoxy-d-galactose (67 %) was achieved in reactions permitting simultaneous oxidation of d-galactose and transamination of the resulting 6-aldo-d-galactose.
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Affiliation(s)
- Ville Aumala
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
| | - Filip Mollerup
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
| | - Edita Jurak
- Department of Aquatic Biotechnology and Bioproduct EngineeringUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
| | - Fabian Blume
- Department of Chemistry and Materials ScienceAalto UniversityKemistintie 102150EspooFinland
| | - Johanna Karppi
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
| | - Antti E. Koistinen
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
| | - Eva Schuiten
- Department of Biotechnology and Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Straße 417487GreifswaldGermany
| | - Moritz Voß
- Department of Biotechnology and Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Straße 417487GreifswaldGermany
| | - Uwe Bornscheuer
- Department of Biotechnology and Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Straße 417487GreifswaldGermany
| | - Jan Deska
- Department of Chemistry and Materials ScienceAalto UniversityKemistintie 102150EspooFinland
| | - Emma R. Master
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
- Department of Chemical Engineering and Applied ChemistryUniversity of Toronto200 College StreetTorontoOntarioM5S 3E5Canada
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5
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Dimakos V, Taylor MS. Site-Selective Functionalization of Hydroxyl Groups in Carbohydrate Derivatives. Chem Rev 2018; 118:11457-11517. [DOI: 10.1021/acs.chemrev.8b00442] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Victoria Dimakos
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Mark S. Taylor
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
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6
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Parikka K, Master E, Tenkanen M. Oxidation with galactose oxidase: Multifunctional enzymatic catalysis. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.06.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Baranwal A, Mukherjee J. (18)F-Fluorodeoxyglucamines: Reductive amination of hydrophilic (18)F-fluoro-2-deoxyglucose with lipophilic amines for the development of potential PET imaging agents. Bioorg Med Chem Lett 2015; 25:2902-6. [PMID: 26048782 DOI: 10.1016/j.bmcl.2015.05.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 05/18/2015] [Accepted: 05/21/2015] [Indexed: 01/27/2023]
Abstract
Maillard reaction of (18)F-FDG with biological amines results in the formation of (18)F-fluorodeoxyglycosylamines ((18)F-FDGly) as pseudo-Amadori products. To increase in vivo stability, we report the reductive amination of FDGly to provide reduced fluorodeoxyglucamines (FDGlu). (18)F-Fluorodeoxyglucamines ((18)F-FDGlu), resulting from linking (18)F-FDG (hydrophilic) to lipophilic molecules containing amine group may be useful as positron emission tomography (PET) imaging agents. Two amine derivatives, 7-chloro-8-hydroxy-3-methyl-l-(3'-aminophenyl)-2,3,4,5-tetrahydro-lH-3-benzazepine (SCH 38548 for dopamine D1 receptors) and BTA-0 (for Aβ amyloid) were reacted with FDG under reductive amination conditions to yield stable products, FDGluSCH and FDGluBTA. FDGluSCH had high binding affinity to rat brain dopamine D1 receptors with a Ki of 19.5 nM while FDGluBTA had micromolar affinity for human frontal cortex Aβ plaques. (18)F-FDGluSCH was prepared in low to modest radiochemical yields and preliminary results showed binding to the rat striatum in brain slices. In vivo stability of(18)F-FDGluSCH needs to be determined. Our results suggest that (18)F-FDG is a useful 'radioactive synthon' for PET radiotracer development. Its usefulness will have to be determined on the basis of the structure-activity relationship of the target molecule.
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Affiliation(s)
- Aparna Baranwal
- Preclinical Imaging, Department of Radiological Sciences, University of California-Irvine, Irvine, CA 92697, United States
| | - Jogeshwar Mukherjee
- Preclinical Imaging, Department of Radiological Sciences, University of California-Irvine, Irvine, CA 92697, United States.
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8
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Zheng J, Li Y, Sun Y, Yang Y, Ding Y, Lin Y, Yang W. A generic magnetic microsphere platform with "clickable" ligands for purification and immobilization of targeted proteins. ACS APPLIED MATERIALS & INTERFACES 2015; 7:7241-7250. [PMID: 25785495 DOI: 10.1021/acsami.5b00313] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
While much effort has been made to prepare magnetic microspheres (MMs) with surface moieties that bind to affinity tags or fusion partners of interest in the recombinant proteins, it remains a challenge to develop a generic platform that is capable of incorporating a variety of capture ligands by a simple chemistry. Herein, we developed core-shell structured magnetic microspheres with a high magnetic susceptibility and a low nonspecific protein adsorption. Surface functionalization of these MMs with azide groups facilitates covalent attachment of alkynylated ligands on their surfaces by "click" chemistry and creates a versatile platform for selective purification and immobilization of recombinant proteins carrying corresponding affinity tags. The general applicability of the approach was demonstrated in incorporating four widely used affinity ligands with different reactive groups (-CHO, -SH, -COOH, and -NH2) onto the MMs platform for purification and immobilization of targeted proteins. The azide-functionalized MMs would be applicable for a variety of ligands and substrates that are amenable to alkynylation modification.
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Affiliation(s)
| | | | | | - Yongkun Yang
- §Polymer Program, Institute of Materials Science and Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | | | - Yao Lin
- §Polymer Program, Institute of Materials Science and Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
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9
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Zou X, Zhao X, Ye L, Wang Q, Li H. Preparation and drug release behavior of pH-responsive bovine serum albumin-loaded chitosan microspheres. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2014.06.012] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Expression, purification, and characterization of galactose oxidase of Fusarium sambucinum in E. coli. Protein Expr Purif 2014; 108:73-79. [PMID: 25543085 PMCID: PMC4370742 DOI: 10.1016/j.pep.2014.12.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 12/14/2014] [Accepted: 12/16/2014] [Indexed: 11/01/2022]
Abstract
A gene encoding a galactose oxidase (GalOx) was isolated from Fusarium sambucinum cultures and overexpressed in Escherichia coli yielding 4.4mg enzyme per L of growth culture with a specific activity of 159Umg(-1). By adding a C-terminal His-tag the enzyme could be easily purified with a single affinity chromatography step with high recovery rate (90%). The enzyme showed a single band on SDS-PAGE with an apparent molecular mass of 68.5kDa. The pH optimum for the oxidation of galactose was in the range of pH 6-7.5. Optimum temperature for the enzyme activity was 35°C, with a half-life of 11.2min, 5.3min, and 2.7min for incubation at 40°C, 50°C, and 60°C, respectively. From all tested substrates, the highest relative activity was found for 1-methyl-β-galactopyranoside (226Umg(-1)) and the highest catalytic efficiency (kcat/Km) for melibiose (2700mM(-1)s(-1)). The enzyme was highly specific for molecular oxygen as an electron acceptor, and showed no appreciable activity with a range of alternative acceptors investigated. Different chemicals were tested for their effect on GalOx activity. The activity was significantly reduced by EDTA, NaN3, and KCN.
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11
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Zheng J, Ma C, Sun Y, Pan M, Li L, Hu X, Yang W. Maltodextrin-modified magnetic microspheres for selective enrichment of maltose binding proteins. ACS APPLIED MATERIALS & INTERFACES 2014; 6:3568-3574. [PMID: 24405246 DOI: 10.1021/am405773m] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this work, maltodextrin-modified magnetic microspheres Fe3O4@SiO2-Maltodextrin (Fe3O4@SiO2-MD) with uniform size and fine morphology were synthesized through a facile and low-cost method. As the maltodextrins on the surface of microspheres were combined with maltose binding proteins (MBP), the magnetic microspheres could be applied to enriching standard MBP fused proteins. Then, the application of Fe3O4@SiO2-MD in one-step purification and immobilization of MBP fused proteins was demonstrated. For the model protein we examined, Fe3O4@SiO2-MD showed excellent binding selectivity and capacity against other Escherichia coli proteins in the crude cell lysate. Additionally, the maltodextrin-modified magnetic microspheres can be recycled for several times without significant loss of binding capacity.
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Affiliation(s)
- Jin Zheng
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University , No. 220 Handan Road, Shanghai 200433, China
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12
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Thomas A, Shukla A, Sivakumar S, Verma S. Assembly, postsynthetic modification and hepatocyte targeting by multiantennary, galactosylated soft structures. Chem Commun (Camb) 2014; 50:15752-5. [DOI: 10.1039/c4cc07074g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Enzyme modifiable, hollow self-assembled structures offer an excellent scope for multiantennary delivery vectors.
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Affiliation(s)
- Anisha Thomas
- Department of Chemistry, Indian Institute of Technology Kanpur
- Kanpur-208016, India
| | - Akansha Shukla
- Department of Chemical Engineering, Material Science Programme, Indian Institute of Technology Kanpur
- Kanpur-208016, India
| | - Sri Sivakumar
- Department of Chemical Engineering, Material Science Programme, Indian Institute of Technology Kanpur
- Kanpur-208016, India
- DST Thematic Unit of Excellence on Soft Nanofabrication, Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur
- Kanpur-208016, India
| | - Sandeep Verma
- Department of Chemistry, Indian Institute of Technology Kanpur
- Kanpur-208016, India
- DST Thematic Unit of Excellence on Soft Nanofabrication, Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur
- Kanpur-208016, India
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13
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Alonso S, Rendueles M, Díaz M. Bio-production of lactobionic acid: Current status, applications and future prospects. Biotechnol Adv 2013; 31:1275-91. [DOI: 10.1016/j.biotechadv.2013.04.010] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 04/10/2013] [Accepted: 04/28/2013] [Indexed: 12/19/2022]
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14
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Affiliation(s)
- Nicholas J. Turner
- School of Chemistry, University of Manchester, Manchester Interdisciplinary Biocentre, 131 Princess Street, Manchester M1 7DN, U.K
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15
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Rannes JB, Ioannou A, Willies SC, Grogan G, Behrens C, Flitsch SL, Turner NJ. Glycoprotein Labeling Using Engineered Variants of Galactose Oxidase Obtained by Directed Evolution. J Am Chem Soc 2011; 133:8436-9. [DOI: 10.1021/ja2018477] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Julie B. Rannes
- School of Chemistry, University of Manchester, Manchester Interdisciplinary Biocentre, Manchester, M1 7DN, U.K
| | - Avgousta Ioannou
- School of Chemistry, University of Manchester, Manchester Interdisciplinary Biocentre, Manchester, M1 7DN, U.K
| | - Simon C. Willies
- School of Chemistry, University of Manchester, Manchester Interdisciplinary Biocentre, Manchester, M1 7DN, U.K
| | - Gideon Grogan
- Department of Chemistry, University of York, York, YO10 5YW, U.K
| | - Carsten Behrens
- Department of Protein and Peptide Chemistry, Novo Nordisk A/S, Maaløv, Denmark
| | - Sabine L. Flitsch
- School of Chemistry, University of Manchester, Manchester Interdisciplinary Biocentre, Manchester, M1 7DN, U.K
| | - Nicholas J. Turner
- School of Chemistry, University of Manchester, Manchester Interdisciplinary Biocentre, Manchester, M1 7DN, U.K
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16
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Monti D, Ottolina G, Carrea G, Riva S. Redox Reactions Catalyzed by Isolated Enzymes. Chem Rev 2011; 111:4111-40. [DOI: 10.1021/cr100334x] [Citation(s) in RCA: 174] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Daniela Monti
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R., Via Mario Bianco 9, 20131 Milano, Italy
| | - Gianluca Ottolina
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R., Via Mario Bianco 9, 20131 Milano, Italy
| | - Giacomo Carrea
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R., Via Mario Bianco 9, 20131 Milano, Italy
| | - Sergio Riva
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R., Via Mario Bianco 9, 20131 Milano, Italy
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Parikka K, Leppänen AS, Pitkänen L, Reunanen M, Willför S, Tenkanen M. Oxidation of polysaccharides by galactose oxidase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:262-271. [PMID: 20000571 DOI: 10.1021/jf902930t] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Galactose oxidase was used as a catalyst to oxidize selectively the C-6 hydroxyls of terminal galactose to carbonyl groups. The polysaccharides studied included spruce galactoglucomannan, guar galactomannan, larch arabinogalactan, corn fiber arabinoxylan, and tamarind seed xyloglucan, with terminal galactose contents varying from 6% to 40%. A multienzyme system was used, with catalase and horseradish peroxidase to enhance the action of galactose oxidase. An analysis technique was developed for the quantification of the reactive aldehydes with GC-MS, utilizing NaBD4 reduction and acidic methanolysis. The best oxidation degrees of terminal galactosyls were obtained with xyloglucan (85% of galactose) and spruce galactoglucomannan (65% of galactose). The highest oxidation degree based on total carbohydrates was achieved with guar gum (28%), which had the highest galactose content. The oxidation resulted in changes in the physicochemical properties of the polysaccharide solutions, and the changes observed varied between the polysaccharides. The clearest change was in tamarind xyloglucan, which formed a gel after the oxidation. After the oxidation, larger particles were present in the solution of spruce galactoglucomannan, but changes in its rheological properties were not observed.
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Affiliation(s)
- Kirsti Parikka
- Department of Applied Chemistry and Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 27, FIN-00014 Helsinki, Finland.
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Parikka K, Tenkanen M. Oxidation of methyl α-d-galactopyranoside by galactose oxidase: products formed and optimization of reaction conditions for production of aldehyde. Carbohydr Res 2009; 344:14-20. [DOI: 10.1016/j.carres.2008.08.020] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2008] [Revised: 08/03/2008] [Accepted: 08/18/2008] [Indexed: 11/27/2022]
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