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Publikationer (10 of 39) Visa alla publikationer
Winestrand, S., Latha Gandla, M., Hong, F., Chen, Q. Z. & Jönsson, L. J. (2012). Oxalate decarboxylase of Trametes versicolor: biochemical characterization and performance in bleaching filtrates from the pulp and paper industry. Journal of chemical technology and biotechnology (1986), 87(11), 1600-1606
Öppna denna publikation i ny flik eller fönster >>Oxalate decarboxylase of Trametes versicolor: biochemical characterization and performance in bleaching filtrates from the pulp and paper industry
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2012 (Engelska)Ingår i: Journal of chemical technology and biotechnology (1986), ISSN 0268-2575, E-ISSN 1097-4660, Vol. 87, nr 11, s. 1600-1606Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

BACKGROUND: Oxalate decarboxylase (ODC) from acid-induced cultures of the white-rot fungus Trametes versicolor was purified and characterized with respect to its biochemical properties and the possibility to utilize the enzyme for treatment of process water with the intention to prevent problems with calcium-oxalate scaling in the pulp and paper industry. RESULTS: Purified T. versicolor ODC was identified by tandem mass spectrometry. As estimated by using SDS-PAGE, the molecular mass was 69 kDa, and 60 kDa after deglycosylation with N-glycosidase F. The pH optimum was 2.5 and the temperature optimum was 4045 degrees C. The effects of ten potential inhibitors in industrial filtrates were examined. The enzyme was sensitive to low concentrations (0.1 mmol L-1) of chlorite and sulfite. T. versicolor ODC exhibited activity in 16 filtrates collected from mechanical pulping and kraft pulping. It had higher activity than ODC from Aspergillus niger in all of the filtrates and higher activity than oxalate oxidase from barley in all filtrates except two. CONCLUSIONS: The investigation shows basic biochemical properties of T. versicolor ODC and indicates that the enzyme may be useful for treatment of industrial filtrates under acidic conditions. Copyright (c) 2012 Society of Chemical Industry

Ort, förlag, år, upplaga, sidor
John Wiley & Sons, 2012
Nyckelord
oxalate decarboxylase; oxalic acid; Trametes versicolor; bleaching filtrates
Nationell ämneskategori
Kemi
Forskningsämne
Kemi
Identifikatorer
urn:nbn:se:kau:diva-6331 (URN)10.1002/jctb.3801 (DOI)000310251200011 ()
Tillgänglig från: 2010-09-06 Skapad: 2010-09-06 Senast uppdaterad: 2017-08-09Bibliografiskt granskad
Winestrand, S., Larsson, S., Cassland, P., Nilvebrant, N.-O. & Jönsson, L. J. (2011). Effects of ionic substances in bleaching filtrates and of lignosulfonates on the activity of oxalate oxidase from barley. Engineering in Life Sciences, 11(3), 245-252
Öppna denna publikation i ny flik eller fönster >>Effects of ionic substances in bleaching filtrates and of lignosulfonates on the activity of oxalate oxidase from barley
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2011 (Engelska)Ingår i: Engineering in Life Sciences, ISSN 1618-0240, E-ISSN 1618-2863, Vol. 11, nr 3, s. 245-252Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The effects of ionic substances in seven industrial filtrates from kraft pulping, mechanical pulping, and sulfite pulping on the activity of oxalate oxidase from barley were investigated by pre-treatment of the filtrates with ion-exchange resins prior to enzymatic degradation of the oxalic acid in the filtrates. The pre-treatment resulted in increased oxalic acid degradation rates in all filtrates, except for one that was obtained from sulfite pulping. The possibility that lignosulfonates, which were present in the filtrate from sulfite pulping, could affect oxalate oxidase was investigated in a separate set of experiments involving four different preparations of lignosulfonates. At a lignosulfonate concentration of 50 mg/mL and a pH of 3.8, only 2-16% of the activity of oxalate oxidase remained. The results show the effects of anionic and cationic substances in bleaching filtrates on oxalate oxidase and indicate that there is an interaction between the enzyme, which has a positive net charge at pH 3.8, and the polymeric anionic lignosulfonates.

Nyckelord
Lignosulfonates, Oxalate oxidase, Pulp and paper
Nationell ämneskategori
Kemi
Forskningsämne
Kemi
Identifikatorer
urn:nbn:se:kau:diva-6332 (URN)10.1002/elsc.201000156 (DOI)000291556600003 ()
Tillgänglig från: 2010-09-06 Skapad: 2010-09-06 Senast uppdaterad: 2017-12-12Bibliografiskt granskad
Cassland, P., Sjöde, A., Winestrand, S., Jönsson, L. J. & Nilvebrant, N.-O. (2010). Evaluation of Oxalate Decarboxylase and Oxalate Oxidase for Industrial Applications. Applied Biochemistry and Biotechnology, 161, 255-263
Öppna denna publikation i ny flik eller fönster >>Evaluation of Oxalate Decarboxylase and Oxalate Oxidase for Industrial Applications
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2010 (Engelska)Ingår i: Applied Biochemistry and Biotechnology, ISSN 0273-2289, E-ISSN 1559-0291, Vol. 161, s. 255-263Artikel i tidskrift (Refereegranskat) Published
Nationell ämneskategori
Kemi
Forskningsämne
Kemi
Identifikatorer
urn:nbn:se:kau:diva-6329 (URN)10.1007/s12010-009-8769-7 (DOI)000275455000024 ()
Tillgänglig från: 2010-09-06 Skapad: 2010-09-06 Senast uppdaterad: 2017-12-12Bibliografiskt granskad
Alriksson, B., Sárvári Horváth, I. & Jönsson, L. J. (2010). Overexpression of Saccharomyces cerevisiae transcription factor and multidrug resistance genes conveys enhanced resistance to lignocellulose-derived fermentation inhibitors.. Process Biochemistry, 45(2), 264-271
Öppna denna publikation i ny flik eller fönster >>Overexpression of Saccharomyces cerevisiae transcription factor and multidrug resistance genes conveys enhanced resistance to lignocellulose-derived fermentation inhibitors.
2010 (Engelska)Ingår i: Process Biochemistry, ISSN 1359-5113, E-ISSN 1873-3298, Vol. 45, nr 2, s. 264-271Artikel i tidskrift (Refereegranskat) Published
Nationell ämneskategori
Kemi
Forskningsämne
Kemi
Identifikatorer
urn:nbn:se:kau:diva-3312 (URN)10.1016/j.procbio.2009.09.016 (DOI)000273897400017 ()
Tillgänglig från: 2009-01-19 Skapad: 2009-01-19 Senast uppdaterad: 2017-12-14Bibliografiskt granskad
Alriksson, B., Rose, S. H., van Zyl, W. H., Sjöde, A., Nilvebrant, N.-O. & Jönsson, L. J. (2009). Cellulase Production from Spent Lignocellulose Hydrolysates with Recombinant Aspergillus niger.. Applied and Environmental Microbiology, 75(8), 2366-2374
Öppna denna publikation i ny flik eller fönster >>Cellulase Production from Spent Lignocellulose Hydrolysates with Recombinant Aspergillus niger.
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2009 (Engelska)Ingår i: Applied and Environmental Microbiology, ISSN 0099-2240, E-ISSN 1098-5336, Vol. 75, nr 8, s. 2366-2374Artikel i tidskrift (Refereegranskat) Published
Nationell ämneskategori
Annan kemi
Identifikatorer
urn:nbn:se:kau:diva-3313 (URN)10.1128/AEM.02479-08 (DOI)
Tillgänglig från: 2009-01-19 Skapad: 2009-01-19 Senast uppdaterad: 2017-12-14Bibliografiskt granskad
Bohlin, C., Jönsson, L. J. & Lundquist, K. (2009). Oxidation of the erythro and threo forms of the phenolic lignin model compound 1-(4-hydroxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)-1,3-propanediol by laccases and model oxidants. Bioorganic chemistry (Print), 37(5), 143-148
Öppna denna publikation i ny flik eller fönster >>Oxidation of the erythro and threo forms of the phenolic lignin model compound 1-(4-hydroxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)-1,3-propanediol by laccases and model oxidants
2009 (Engelska)Ingår i: Bioorganic chemistry (Print), ISSN 0045-2068, Vol. 37, nr 5, s. 143-148Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Mixtures of equal amounts of the erythro and threo forms of the phenolic arylglycerol β-aryl ether 1-(4-hydroxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)-1,3-propanediol were oxidized (i) with laccases from Trametes versicolor, Agaricus bisporus, Myceliophthora thermophila and Rhus vernicifera, (ii) with laccase-mediator systems consisting of T. versicolor laccase and ABTS or HBT, and (iii) with various model oxidants including cerium(IV) ammonium nitrate (CAN), lignin peroxidase, Fenton’s reagent, and lead(IV) tetraacetate (LTA). All the laccases exhibited a similar preferential degradation of the threo form. The mediator ABTS counteracted the threo preference of laccase, but the mediator HBT did not affect it. The outer-sphere model oxidants CAN and lignin peroxidase showed a preferential degradation of the threo form. LTA and Fenton’s reagent did not exhibit any stereo-preference. The results suggest that laccases of different origin, primary structure, and redox potential behave as typical outer-sphere oxidants in their interaction with the diastereomers of the arylglycerol β-aryl ether

Ort, förlag, år, upplaga, sidor
Elsevier, 2009
Nationell ämneskategori
Kemi
Forskningsämne
Kemi
Identifikatorer
urn:nbn:se:kau:diva-10506 (URN)10.1016/j.bioorg.2009.07.001. (DOI)
Tillgänglig från: 2012-02-08 Skapad: 2012-02-08 Senast uppdaterad: 2017-12-07Bibliografiskt granskad
Bohlin, C., Lundquist, K. & Jönsson, L. J. (2008). Diastereomer selectivity in the degradation of a lignin model compound of the arylglycerol β-aryl ether type by white-rot fungi. Enzyme and microbial technology, 43(2), 199-204
Öppna denna publikation i ny flik eller fönster >>Diastereomer selectivity in the degradation of a lignin model compound of the arylglycerol β-aryl ether type by white-rot fungi
2008 (Engelska)Ingår i: Enzyme and microbial technology, ISSN 0141-0229, E-ISSN 1879-0909, Vol. 43, nr 2, s. 199-204Artikel i tidskrift (Refereegranskat) Published
Nationell ämneskategori
Kemi
Forskningsämne
Kemi
Identifikatorer
urn:nbn:se:kau:diva-1998 (URN)10.1016/j.enzmictec.2008.03.002 (DOI)
Tillgänglig från: 2008-03-17 Skapad: 2008-03-17 Senast uppdaterad: 2017-12-07Bibliografiskt granskad
Sjöde, A., Winestrand, S., Nilvebrant, N.-O. & Jönsson, L. J. (2008). Enzyme-based control of oxalic acid in the pulp and paper industry. Enzyme and microbial technology, 43, 78-83
Öppna denna publikation i ny flik eller fönster >>Enzyme-based control of oxalic acid in the pulp and paper industry
2008 (Engelska)Ingår i: Enzyme and microbial technology, ISSN 0141-0229, E-ISSN 1879-0909, Vol. 43, s. 78-83Artikel i tidskrift (Refereegranskat) Published
Nationell ämneskategori
Biomedicinsk laboratorievetenskap/teknologi Medicinsk bioteknologi (med inriktning mot cellbiologi (inklusive stamcellsbiologi), molekylärbiologi, mikrobiologi, biokemi eller biofarmaci)
Forskningsämne
Biomedicinsk vetenskap
Identifikatorer
urn:nbn:se:kau:diva-1968 (URN)10.1016/j.enzmictec.2007.11.014 (DOI)
Tillgänglig från: 2008-02-01 Skapad: 2008-02-01 Senast uppdaterad: 2017-12-07Bibliografiskt granskad
Kvarnlöf, N., Jönsson, L. J., Söderlund, C.-A. & Germgård, U. (2008). Modification of the Viscose Process to Suit the Use of Dissolving Pulps Pre-treated with Enzyme. Paperi ja Puu, 90(2008)4,50-55
Öppna denna publikation i ny flik eller fönster >>Modification of the Viscose Process to Suit the Use of Dissolving Pulps Pre-treated with Enzyme
2008 (Engelska)Ingår i: Paperi ja Puu, Vol. 90(2008)4,50-55Artikel i tidskrift (Refereegranskat)
Nationell ämneskategori
Kemiteknik Kemi
Forskningsämne
Kemiteknik; Kemi
Identifikatorer
urn:nbn:se:kau:diva-21555 (URN)
Tillgänglig från: 2013-01-21 Skapad: 2013-01-21 Senast uppdaterad: 2013-01-21
Martín, C., Almazán, O., Marcet, M. & Jönsson, L. J. (2007). A study of three strategies for improving the fermentability of sugarcane bagasse hydrolysates for fuel ethanol production. Int. Sugar J. (2007) 109, 33-39
Öppna denna publikation i ny flik eller fönster >>A study of three strategies for improving the fermentability of sugarcane bagasse hydrolysates for fuel ethanol production
2007 (Engelska)Ingår i: Int. Sugar J. (2007) 109, 33-39Artikel i tidskrift (Refereegranskat)
Nationell ämneskategori
Kemi
Forskningsämne
Kemi
Identifikatorer
urn:nbn:se:kau:diva-16655 (URN)
Projekt
Ethanol from lignocellulose
Tillgänglig från: 2013-01-21 Skapad: 2013-01-21 Senast uppdaterad: 2013-01-21
Projekt
Bättre träd för bioenergi och materialproduktion [2009-1698_Formas]; Umeå universitetMolekylära mekanismer bakom nya metoder för effektiv biokonvertering av lignocellulosa [2011-04388_VR]; Umeå universitetModifiering av lignin sammansättning för hållbar användning av vedråvara [2011-1312_Formas]; Umeå universitetNy energieffektiv flishuggningsteknik för skogsindustrin [P40512-1_Energi]; Umeå universitetEffektivare förädling av snabbväxande lövträd för hållbar produktion av biomassa, material och kemikalier [2015-84_Formas]; Umeå universitetKontroll av inhibering av biokatalysatorer vid biokonvertering av lignocellulosa [P41285-1_Energi]; Umeå universitetSockerplattformsprocesser baserade på biomassa från skog med kort omloppstid [2016-05123_Vinnova]; Umeå universitet
Organisationer
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0003-3866-0111

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